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Contents
- The climate of Wellfleet
- The best time to visit Wellfleet
- The worst time to visit Wellfleet
- Spring weather in Wellfleet
- Summer weather in Wellfleet
- Autumn weather in Wellfleet
- Winter weather in Wellfleet
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Wellfleet
Wellfleet is a town located in Massachusetts, USA. According to the Köppen climate categorization, this town follows a Cfa climate; also recognized as a Humid subtropical climate that undergoes no dry season. This climatic condition implies that Wellfleet experiences significant rainfall throughout the year, even in its driest months.
In terms of temperature, the town displays a considerable variance throughout the year. Monthly high temperatures range from 38.7°F (3.7°C) in January to a peak of 71.1°F (21.7°C) in August. On the other hand, monthly low temperatures show a similar pattern with the coldest month being January, at 31.6°F (-0.2°C); while the warmest months, July and August, registering an average of 66.9°F (19.4°C) and 67.6°F (19.8°C) respectively.
Examining the precipitation, Wellfleet receives a good amount of rainfall consistently, with monthly averages varying from 1.18" (30mm) to 2.17" (55mm). The town also experiences a small quantity of snowfall primarily in the winter months from December to February, with the maximum snowfall of 0.94" (24mm) in February.
Observing the sunlight, Wellfleet receives a sufficient amount of sunshine on an annual basis, with the duration of daylight fluctuating from 9.5 hours in January to 15.2 hours in June. Residents and visitors can expect about 4.2 to 10.6 hours of sunshine every day, depending on the month.
In terms of temperature, the town displays a considerable variance throughout the year. Monthly high temperatures range from 38.7°F (3.7°C) in January to a peak of 71.1°F (21.7°C) in August. On the other hand, monthly low temperatures show a similar pattern with the coldest month being January, at 31.6°F (-0.2°C); while the warmest months, July and August, registering an average of 66.9°F (19.4°C) and 67.6°F (19.8°C) respectively.
Examining the precipitation, Wellfleet receives a good amount of rainfall consistently, with monthly averages varying from 1.18" (30mm) to 2.17" (55mm). The town also experiences a small quantity of snowfall primarily in the winter months from December to February, with the maximum snowfall of 0.94" (24mm) in February.
Observing the sunlight, Wellfleet receives a sufficient amount of sunshine on an annual basis, with the duration of daylight fluctuating from 9.5 hours in January to 15.2 hours in June. Residents and visitors can expect about 4.2 to 10.6 hours of sunshine every day, depending on the month.
The best time to visit Wellfleet
The ideal time to visit Wellfleet would arguably be between May and September. During these months, the town experiences the highest average temperatures from 54.3°F (12.4°C) to 71.1°F (21.7°C), ideal for outdoor activities. The summertime, particularly June to August, offers the longest daylight hours, ranging from 14.9 hours to 15.2 hours, thereby providing sufficient time for sightseeing and exploration. However, note that this period also records the highest levels of humidity, between 84% to 85%.
The worst time to visit Wellfleet
The least desirable times to visit Wellfleet could be the colder months from November to March. The temperatures during this period drop to averages between 38.7°F (3.7°C) and 50.9°F (10.5°C). Although snowfall is moderate within these months, it may still deter outdoor touristic activities. The daylight during this period is also shorter in comparison to other months, with durations between 9.2 hours to 11.1 hours.
Spring weather in Wellfleet
The spring season in Wellfleet, from March to May, experiences an increase in average temperatures from a low of 35.2°F (1.8°C) in March to highs of 54.3°F (12.4°C) in May. Rainfall is consistent during these months, but relative humidity tends to rise, reaching 84% in May. As spring progresses, the town also benefits from increased daylight hours, moving from 12 hours in March to 14.6 hours in May.
Summer weather in Wellfleet
Summers in Wellfleet, stretching from June to August, are pleasantly warm with the highest average temperatures ranging between 62.4°F (16.9°C) and 71.1°F (21.7°C). Rainfall during these months varies slightly, with June recording the lowest average precipitation of 1.38" (35mm) compared to July's 1.57" (40mm).
Autumn weather in Wellfleet
Autumn, taking place from September to November in Wellfleet, is characterized by a steady drop in temperature from 66.4°F (19.1°C) in September to 43.9°F (6.6°C) in November. The weather remains relatively humid during these months but slightly less compared to the summer periods. October is the rainiest month of the season, experiencing an average of 2.17" (55mm) of rainfall.
Winter weather in Wellfleet
Winter in Wellfleet, occurring from December to February, is the coldest season with average temperatures ranging between 31.6°F (-0.2°C) and 41°F (5°C). Relative humidity decreases slightly compared to other seasons. Although snowfall is limited, the town records the majority of its snowfall during these months. Daylight during winter is significantly shorter, fluctuating from 9.2 to 10.6 hours.
Weather in January
Starting off the year, January in Wellfleet, Massachusetts features low temperatures and high humidity, setting a chilly stage for local inhabitants. High levels of cloud cover contribute to the cold sensation, making it one of the gloomiest months. Weather in January »
Weather in February
February ushers in a slight increase in temperature compared to January, yet does not bring substantial changes in weather. Visitors and locals may find this month slightly warmer yet frozen outdoor surroundings remain, depicting a picturesque winter scene in Wellfleet. Weather in February »
Weather in March
March is known for clearer skies and warmer temperatures, shedding off the frigid demeanor of the past winter months. During this spring precursor, daylight extends to 12 hours, hinting at the return of pleasant outdoor activities. Weather in March »
Weather in April
April defines the essence of spring in Wellfleet, embodying warmer temperatures and longer days compared to March. Sea temperatures begin to escalate, though few dare to brave the 43.5°F (6.4°C) waters. Coupled with prolonged hours of daylight, this month encourages more outdoor pursuits, heralding the start of the spring season. Weather in April »
Weather in May
May presents a remarkable leap from the cool weather of April to the pleasant warmth typical of spring. The weather conditions are ideal for exploring the outdoors with low pressure and impressive visibility of 6 miles throughout the month. Weather in May »
Weather in June
June brings forth the anticipated summer to Wellfleet, synonymous with warmer temperatures and longer daylight hours. Sea temperatures rise to a comfortable 57.7°F (14.3°C), encouraging beach activities and seaside exploration. Lighter winds, lesser cloud cover and the highest sunshine duration of about 15.2 hours summarize the June weather pattern. Weather in June »
Weather in July
July claims the title for the warmest month in Wellfleet, marking the height of summer. This month reaps the benefits of extended sunshine and the highest daylight hours of 14.9, favoring various outdoor activities. With its top temperatures averaging an enticing 70.3°F (21.3°C), July becomes the perfect time for sunbathing and water activities in the warmed sea. Weather in July »
Weather in August
As the last mere weeks of summer approach, August in Wellfleet remains blissfully warm, mimicking the prime conditions of July. Notably, sea temperature reaches the year's high of 67.5°F (19.7°C) in August, granting perfect conditions for a wide spectrum of water sports. Weather in August »
Weather in September
September introduces the early autumn season to Wellfleet, marking a departure from the summer heat. Cooler nights return along with an increase in rain incidents, signifying the start of the transition phase. However, enjoyable late summer weather persists with sea temperatures still at a pleasant 64.3°F (17.9°C), allowing water activities to continue. Weather in September »
Weather in October
October unravels the full essence of autumn in Wellfleet, featuring cooler temperatures and colorful foliage. With the sea temperatures cooling to 58.7°F (14.8°C), the flow of beach goers starts to diminish. Despite the drop in temperature, clear sunny days provide a beautiful backdrop for viewing the changing leaves. Weather in October »
Weather in November
November unveils a drastic change in weather with shorter daylight hours, increased rainfall, and colder temperatures. Commencing the winter season, snow makes a reappearance in November, contributing to a notable 0.08" (2mm) in snowfall. Weather in November »
Weather in December
By December, Wellfleet fully welcomes the winter season, characterized by consistently low temperatures and increased snowfall activity. The sea temperatures further drop to 46.1°F (7.8°C) and the daylight hours are minimized to 9.2, marking the shortest days of the year. Weather in December »
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
Wellfleet's coldest month, January, registers temperatures that range from a high of 38.7°F (3.7°C) to a low of 31.6°F (-0.2°C).
How much does it rain?
In Wellfleet, during the entire year, the rain falls for 136.1 days and collects up to 17.24" (438mm) of precipitation.
When does it snow in Wellfleet?
Months with snowfall are January through April, November and December.
How many days does it snow?
In Wellfleet, during the entire year, snow falls for 22.1 days and aggregates up to 2.95" (75mm) of snow.
What is the month with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Wellfleet.
What is the driest month?
February and November are months with the least rain when the rain falls for 7.3 days and typically aggregates up to 1.18" (30mm) of rain.
What is the snowiest month in Wellfleet?
February is the month with the most snowfall. Snow falls for 5.2 days and accumulates 0.94" (24mm) of snow.
When is the ocean coldest?
March is the month with the coldest seawater, with an average ocean temperature of 39°F (3.9°C).
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow?
In Wellfleet, snow does not fall in May through October.
When are the longest days?
The month with the longest days is June, with an average of 15h and 12min of daylight.
What is the most humid month?
The most humid month is July, with an average relative humidity of 85%.
What is the month with the highest UV index?
The months with the highest UV index are July and August, with an average maximum UV index of 6.
What time of the year is the hottest?
With average high and low temperatures of 71.1°F (21.7°C) and 67.6°F (19.8°C) respectively, August is Wellfleet's warmest month.
When is the ocean warmest in Wellfleet?
August is the month with the warmest seawater, with an average ocean temperature of 67.5°F (19.7°C).
What month has the most sunshine in Wellfleet?
August has the most sunshine of the year in Wellfleet, with an average of 10.6h of sunshine.
What is the wettest month?
The month with the most rainfall is October, when the rain falls for 12.5 days and typically aggregates up to 2.17" (55mm) of precipitation.
What is the least humid month?
November is the least humid month, with an average relative humidity of 74%.
What is the month with the shortest days?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 4.2h of sunshine.
Average temperature
Wellfleet, MA
The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).
The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).
Average pressure
Wellfleet, MA
- Average pressure in January:
29.99"Hg - Average pressure in February:
29.98"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Wellfleet, MA
- Average wind speed in January:
18.5mph - Average wind speed in February:
18mph - Average wind speed in March:
17.8mph - Average wind speed in April:
15.3mph - Average wind speed in May:
13.2mph - Average wind speed in June:
12.5mph
- Average wind speed in July:
11.6mph - Average wind speed in August:
11.6mph - Average wind speed in September:
13.5mph - Average wind speed in October:
15.7mph - Average wind speed in November:
17.2mph - Average wind speed in December:
18mph
The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).
Average humidity
Wellfleet, MA
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall
Wellfleet, MA
- Average rainfall in January:
1.26" - Average rainfall in February:
1.18" - Average rainfall in March:
1.34" - Average rainfall in April:
1.5" - Average rainfall in May:
1.42" - Average rainfall in June:
1.38"
- Average rainfall in July:
1.57" - Average rainfall in August:
1.26" - Average rainfall in September:
1.42" - Average rainfall in October:
2.17" - Average rainfall in November:
1.18" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").
Average rainfall days
Wellfleet, MA
- Average rainfall days in January:
8.9 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
12.6 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
11.5 days - Average rainfall days in September:
10 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
11.7 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall
Wellfleet, MA
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Wellfleet, MA
- Average snowfall days in January:
6.1 days - Average snowfall days in February:
5.2 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature
Wellfleet, MA
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight / Average sunshine
Wellfleet, MA
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
4h and 3min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days
Wellfleet, MA
- Average sunshine days in January:
13.3 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
15 days - Average sunshine days in June:
16.3 days
- Average sunshine days in July:
16.4 days - Average sunshine days in August:
18.2 days - Average sunshine days in September:
18.1 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
15.5 days - Average sunshine days in December:
13.1 days
The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).
Average UV index
Wellfleet, MA
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Wellfleet, MA
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Wellfleet, MA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Wellfleet, Massachusetts, USA
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