July weather forecast
Hyannis Port, MA

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Weather in July

July in Hyannis Port, Massachusetts, is a pleasant summer month, with an average temperature ranging between max 72°F (22.2°C) and min 67.6°F (19.8°C).

Temperature

As July begins, there's a slight increase in the average high-temperature, moving from a refreshing 63.9°F (17.7°C) in June to an agreeable 72°F (22.2°C). Hyannis Port, in the month of July, notes an average low temperature of 67.6°F (19.8°C), indicating a small decrease from the daytime highs.

Humidity

With an average relative humidity of 84%, July is the most humid month.

Rainfall

In July, in Hyannis Port, the rain falls for 15.1 days. Throughout July, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 157.2 rainfall days, and 31.77" (807mm) of precipitation is accumulated.

Snowfall

In Hyannis Port, Massachusetts, snow does not fall in May through November.

Daylight

In Hyannis Port, the average length of the day in July is 14h and 50min.
On the first day of the month, sunrise is at 5:11 am and sunset at 8:19 pm. On the last day of July, sunrise is at 5:35 am and sunset at 7:59 pm EDT.

Sunshine

In Hyannis Port, the average sunshine in July is 10.6h.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

What is the temperature in July?

Hyannis Port in July has an average high-temperature of 72°F (22.2°C) and an average low-temperature of 67.6°F (19.8°C).

What is the most humid month?

The most humid month is July, with an average relative humidity of 84%.

What is the average humidity in July?

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

How much does it rain in July?

In Hyannis Port, Massachusetts, in July, it is raining for 15.1 days, with typically 2.05" (52mm) of accumulated precipitation.

When it does not snow?

In Hyannis Port, Massachusetts, snow does not fall in May through November.

How many hours of daylight does Hyannis Port have in July?

In July, the average day length is 14h and 50min.

What time are sunrise and sunset in July?

On the first day of July in Hyannis Port, sunrise is at 5:11 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 7:59 pm EDT.

How long on average sun shines in July?

In July, the average sunshine duration is 10.6h.

What is the month with the highest UV index?

July and August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
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
Hyannis Port, MA

Average temperature in July - Hyannis Port, MA
  • Average high temperature in July: 72°F

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

Average pressure in July
Hyannis Port, MA

Average pressure in July - Hyannis Port, MA
  • Average pressure in July: 29.96"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
Hyannis Port, MA

Average wind speed in July - Hyannis Port, MA
  • Average wind speed in July: 10.7mph

The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).

Average humidity in July
Hyannis Port, MA

Average humidity in July - Hyannis Port, MA
  • Average humidity in July: 84%

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

Average rainfall in July
Hyannis Port, MA

Average rainfall in July - Hyannis Port, MA
  • Average rainfall in July: 2.05"

The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").

Average rainfall days in July
Hyannis Port, MA

Average rainfall days in July - Hyannis Port, MA
  • Average rainfall days in July: 15.1 days

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (10.3 days).

Average snowfall in July
Hyannis Port, MA

Average snowfall in July - Hyannis Port, MA
  • Average snowfall in July: 0"

The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in July
Hyannis Port, MA

Average snowfall days in July - Hyannis Port, MA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Hyannis Port, MA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in July
Hyannis Port, MA

Average sunshine days in July - Hyannis Port, MA
  • Average sunshine days in July: 14.9 days

The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).

Average UV index in July
Hyannis Port, MA

Average UV index in July - Hyannis Port, MA
  • Average UV index in July: 6

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 in July
Hyannis Port, MA

Average cloud cover in July - Hyannis Port, MA
  • Average cloud cover in July: 29

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in July
Hyannis Port, MA

Average visibility in July - Hyannis Port, 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).

Hyannis Port, Massachusetts, USA

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