August weather forecast
Westerly, RI

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Weather in August

Despite the slight dip in temperatures from July, August retains Westerly's summer vibrance. The city bathes under the sun's continued dominance, favoring prolonged outdoor activities. Reduced cloud cover in August allows for mostly clear skies, despite slightly lower sunshine hours compared to July. This month's unique weather pattern would be the modest drop in the maximum temperature to 77.5°F (25.3°C), signaling the gradual cooling down of summer.

Temperature

The average high-temperature during August is a still moderately hot 77.5°F (25.3°C), almost matching the conditions of the preceding month. Nighttime temperatures in August average to an enjoyable 66.4°F (19.1°C) in Westerly.

Humidity

In August, the average relative humidity in Westerly is 78%.

Rainfall

In Westerly, Rhode Island, in August, it is raining for 16.1 days, with typically 2.56" (65mm) of accumulated precipitation. In Westerly, during the entire year, the rain falls for 154.5 days and collects up to 31.46" (799mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 47min.
On the first day of August, sunrise is at 5:43 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 7:21 pm EDT.

Sunshine

The month with the most sunshine in Westerly, Rhode Island, is August, with an average of 10.6h of sunshine.

UV index

June through 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 health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What are August temperatures in Westerly?

The high-temperature in Westerly during August is 77.5°F (25.3°C) and the low-temperature is 66.4°F (19.1°C).

What is the average humidity in August in Westerly?

The average relative humidity in August in Westerly, Rhode Island, is 78%.

How much does it rain in Westerly in August?

In Westerly, in August, it is raining for 16.1 days, with typically 2.56" (65mm) of accumulated precipitation.

When it does not snow in Westerly?

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

What is the average length of the day in August in Westerly?

In Westerly, the average day length in August is 13h and 47min.

When are sunrise and sunset in August in Westerly?

On the first day of August in Westerly, sunrise is at 5:43 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 7:21 pm EDT.

What month has the most sunshine in Westerly?

August has the most sunshine of the year in Westerly, Rhode Island, with an average of 10.6h of sunshine.

How many hours of sunshine does Westerly have in August?

The average sunshine duration in August is 10.6h.

What is the month with the highest UV index in Westerly?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Westerly, Rhode Island.

How high is the UV index in August in Westerly?

The average daily maximum UV index in August in Westerly, Rhode Island, is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to 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 August
Westerly, RI

Average temperature in August - Westerly, RI
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in August: 66.4°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in August
Westerly, RI

Average pressure in August - Westerly, RI
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Westerly, RI

Average wind speed in August - Westerly, RI
  • Average wind speed in August: 8.3mph

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).

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Average humidity in August
Westerly, RI

Average humidity in August - Westerly, RI
  • Average humidity in August: 78%

The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).

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Average rainfall in August
Westerly, RI

Average rainfall in August - Westerly, RI
  • Average rainfall in August: 2.56"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in August
Westerly, RI

Average rainfall days in August - Westerly, RI
  • Average rainfall days in August: 16.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in August
Westerly, RI

Average snowfall in August - Westerly, RI
  • Average snowfall in August: 0"

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

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Average snowfall days in August
Westerly, RI

Average snowfall days in August - Westerly, RI
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Westerly, RI

Average daylight in August / Average sunshine in August - Westerly, RI
  • Average daylight in August: 13h 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 August: 10h and 4min

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 54min).

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Average sunshine days in August
Westerly, RI

Average sunshine days in August - Westerly, RI
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (11 days).

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Average UV index in August
Westerly, RI

Average UV index in August - Westerly, RI
  • Average UV index in August: 6

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

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Average cloud cover in August
Westerly, RI

Average cloud cover in August - Westerly, RI
  • Average cloud cover in August: 28

The months with the most cloud cover are March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Westerly, RI

Average visibility in August - Westerly, RI
  • Average visibility in August: 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).

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Westerly, Rhode Island, USA

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