July weather forecast
Provincetown, MA

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Residential homes along the scenic shores of Provincetown in Cape Cod, Massachusetts
Residential homes along the scenic shores of Provincetown in Cape Cod, Massachusetts

Weather in July

July is the pinnacle of summer in Provincetown, Massachusetts with temperatures peaking at 71.2°F (21.8°C). It is the hottest month of the year with long, sunny days and occasional thunderstorms. Humidity is high due to the rise in temperatures and seaside location. Despite being the month with the highest rainfall pattern, the rain brings relief from the high temperatures and keeps the weather pleasant. Swimming activities perk up as sea temperatures rise, providing a refreshing retreat.

Temperature

July signifies a subtle uplift in the average high-temperature, adjusting from an enjoyable 63.3°F (17.4°C) in June to a pleasant 71.2°F (21.8°C). Provincetown observes a consistent average low-temperature of 66.2°F (19°C) throughout July nights.

Humidity

June and July, with an average relative humidity of 84%, are the most humid months.

Rainfall

In Provincetown, in July, it is raining for 17.1 days, with typically 3.03" (77mm) of accumulated precipitation. In Provincetown, Massachusetts, during the entire year, the rain falls for 157.1 days and collects up to 32.17" (817mm) of precipitation.

Snowfall

In Provincetown, snow does not fall in May through October.

Ocean temperature

In Provincetown, in July, the average water temperature is 66.6°F (19.2°C).
Note: Most people do not find swimming enjoyable in water of 66.6°F (19.2°C). The task of controlling breathing becomes tougher as the temperature drops from 69.8°F (21°C) to 59°F (15°C).

Daylight

In Provincetown, the average length of the day in July is 14h and 53min.
On the first day of the month, sunrise is at 5:09 am and sunset at 8:20 pm. On the last day of July, in Provincetown, sunrise is at 5:33 am and sunset at 8:00 pm EDT.

Sunshine

In Provincetown, the average sunshine in July is 10.4h.

UV index

July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in July?

July temperatures in Provincetown vary between a high-temperature of 71.2°F (21.8°C) and a low-temperature of 66.2°F (19°C).

What are the most humid months?

The months with the highest humidity are June and July, with an average relative humidity of 84%.

What is the average humidity in July?

In Provincetown, the average relative humidity in July is 84%.

How many days does it rain in July?

In July, the rain falls for 17.1 days. Throughout July, 3.03" (77mm) of precipitation is accumulated.

When it does not snow?

In Provincetown, snow does not fall in May through October.

What is the ocean temperature in July?

In Provincetown, the average seawater temperature in July is 66.6°F (19.2°C). Swimming in 66.6°F (19.2°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

What is the average length of the day in July?

The average day length in July is 14h and 53min.

When are sunrise and sunset in July?

On the first day of July in Provincetown, Massachusetts, sunrise is at 5:09 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:00 pm EDT.

How long on average sun shines in July?

The average sunshine duration in July is 10.4h.

What is the month with the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Provincetown, MA

Average temperature in July - Provincetown, MA
  • Average high temperature in July: 71.2°F

The warmest month (with the highest average high temperature) is August (71.8°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in July: 66.2°F

The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in July
Provincetown, MA

Average pressure in July - Provincetown, MA
  • Average pressure in July: 29.95"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 in July
Provincetown, MA

Average wind speed in July - Provincetown, MA
  • Average wind speed in July: 11mph

The windiest month (with the highest average wind speed) is January (17.8mph).
The calmest month (with the lowest average wind speed) is August (10.9mph).

Average humidity in July
Provincetown, MA

Average humidity in July - Provincetown, MA
  • Average humidity in July: 84%

The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).

Average rainfall in July
Provincetown, MA

Average rainfall in July - Provincetown, MA
  • Average rainfall in July: 3.03"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in July
Provincetown, MA

Average rainfall days in July - Provincetown, MA
  • Average rainfall days in July: 17.1 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (8.6 days).

Average snowfall in July
Provincetown, MA

Average snowfall in July - Provincetown, MA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Provincetown, MA

Average snowfall days in July - Provincetown, MA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in July
Provincetown, MA

Average sea temperature in July - Provincetown, MA
  • Average sea temperature in July: 66.4°F

The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (39°F).

Average daylight in July /
Average sunshine in July
Provincetown, MA

Average daylight in July / Average sunshine in July - Provincetown, MA
  • Average daylight in July: 14h and 5min

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 July: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in July
Provincetown, MA

Average sunshine days in July - Provincetown, MA
  • Average sunshine days in July: 12.6 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is July (12.6 days).

Average UV index in July
Provincetown, MA

Average UV index in July - Provincetown, MA
  • Average UV index in July: 6

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in July
Provincetown, MA

Average cloud cover in July - Provincetown, MA
  • Average cloud cover in July: 31

The month with the most cloud cover is December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in July
Provincetown, MA

Average visibility in July - Provincetown, MA
  • Average visibility in July: 6mi

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).

Provincetown, Massachusetts, USA

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