July weather forecast
Weymouth, MA

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The modern bridge crossing on the large Fore River passing through Weymouth City, Massachusetts
The modern bridge crossing on the large Fore River passing through Weymouth City, Massachusetts

Weather in July

July is the warmest month in Weymouth, reaching scorching highs of around 79.3°F (26.3°C), and providing exceptionally warm nights with lows around 64.9°F (18.3°C). The heatwave elevates from June, marking July as the high point of summer's dominion over the city. This month's significant warmth offers perfect beach weather making Weymouth a blissful spot for vacationers. Despite the surges in temperatures, the relative lack of rainfall contributes to prolonged periods of sun-soaked days, making July a true representation of summer.

Temperature

July is the warmest month, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 64.9°F (18.3°C).

Humidity

In Weymouth, the average relative humidity in July is 76%.

Rainfall

In Weymouth, during July, the rain falls for 16.5 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, there are 152 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Weymouth, the average length of the day in July is 14h and 54min.
On the first day of July, sunrise is at 5:11 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:03 pm EDT.

Sunshine

The average sunshine in July is 10.2h.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Weymouth?

With average high and low temperatures of 79.3°F (26.3°C) and 64.9°F (18.3°C) respectively, July is Weymouth's warmest month.

What are July temperatures?

The average high-temperature and low-temperature during July are 79.3°F (26.3°C) and 64.9°F (18.3°C) respectively.

What is the average humidity in July?

In Weymouth, the average relative humidity in July is 76%.

How much does it rain in July?

In Weymouth, in July, it is raining for 16.5 days, with typically 2.32" (59mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Weymouth have in July?

In Weymouth, the average day length in July is 14h and 54min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:11 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:03 pm EDT.

How long on average sun shines in July?

In Weymouth, the average sunshine duration in July is 10.2h.

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 is the UV index reading in July in Weymouth?

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from 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
Weymouth, MA

Average temperature in July - Weymouth, MA
  • Average high temperature in July: 79.3°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in July
Weymouth, MA

Average pressure in July - Weymouth, 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
Weymouth, MA

Average wind speed in July - Weymouth, MA
  • Average wind speed in July: 7mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in July
Weymouth, MA

Average humidity in July - Weymouth, MA
  • Average humidity in July: 76%

The months with the highest relative humidity are February, June and September (77%).
The month with the lowest relative humidity is April (72%).

Average rainfall in July
Weymouth, MA

Average rainfall in July - Weymouth, MA
  • Average rainfall in July: 2.32"

The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in July
Weymouth, MA

Average rainfall days in July - Weymouth, MA
  • Average rainfall days in July: 16.5 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in July
Weymouth, MA

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

The month with the highest snowfall is February (3.86").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Weymouth, MA

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

The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Weymouth, 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 1min

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

Average sunshine days in July
Weymouth, MA

Average sunshine days in July - Weymouth, MA
  • Average sunshine days in July: 12.8 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in July
Weymouth, MA

Average UV index in July - Weymouth, 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
Weymouth, MA

Average cloud cover in July - Weymouth, MA
  • Average cloud cover in July: 33

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in July
Weymouth, MA

Average visibility in July - Weymouth, 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).

Weymouth, Massachusetts, USA

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