August weather forecast
Bristol, RI

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Weather in August

In August, the weather in Bristol continues to bask in the glory of summer, barely showing any shift from July's heat pattern. The unique charm of August lies in its sunshine, boasting a notable 10.6 hours of radiant sun on average. The clear blue skies and lengthy daylight hours provide an excellent backdrop for all sorts of outdoor activities and summer festivals. The city retains its dynamic summer spirit, compensating for the heat with the beauty of illuminated evenings. Winds sweep across the region in gentle gusts, brushing the heated ambience with a refreshing cool.

Temperature

August is marked by an average high-temperature of a still moderately hot 78.6°F (25.9°C), almost identical to the preceding month. In the month of August, Bristol experiences an average low-temperature of 64.9°F (18.3°C).

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Bristol, in August, it is raining for 11.8 days, with typically 1.5" (38mm) of accumulated precipitation. In Bristol, during the entire year, the rain falls for 135.4 days and collects up to 18.31" (465mm) of precipitation.

Snowfall

In Bristol, snow does not fall in June through October.

Daylight

The average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 5:40 am and sunset at 8:02 pm. On the last day of August, sunrise is at 6:10 am and sunset at 7:19 pm EDT.

Sunshine

August has the most sunshine of the year, 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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during August leads to these advisories:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

In Bristol, in August, the average high-temperature is 78.6°F (25.9°C), and the average low-temperature is 64.9°F (18.3°C).

What is the average humidity in August?

The average relative humidity in August is 77%.

How many days does it rain in August?

In Bristol, in August, it is raining for 11.8 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow?

In Bristol, snow does not fall in June through October.

What is the average length of the day in August?

The average day length in August is 13h and 48min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:40 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:19 pm EDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.6h of sunshine.

How many hours of sunshine does Bristol have in August?

In Bristol, the average sunshine duration in August is 10.6h.

When is the highest UV index in Bristol?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index reading in August?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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 August
Bristol, RI

Average temperature in August - Bristol, RI
  • Average high temperature in August: 78.6°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 (36°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in August
Bristol, RI

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

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Bristol, RI

Average wind speed in August - Bristol, RI
  • Average wind speed in August: 7.3mph

The windiest months (with the highest average wind speed) are January, February and March (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

Average humidity in August
Bristol, RI

Average humidity in August - Bristol, RI
  • Average humidity in August: 77%

The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is April (73%).

Average rainfall in August
Bristol, RI

Average rainfall in August - Bristol, RI
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is October (1.97").
The driest month (with the least rainfall) is September (1.06").

Average rainfall days in August
Bristol, RI

Average rainfall days in August - Bristol, RI
  • Average rainfall days in August: 11.8 days

The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (6.9 days).

Average snowfall in August
Bristol, RI

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

The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Bristol, RI

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

The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Bristol, RI
  • Average daylight in August: 13h 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 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).

Average sunshine days in August
Bristol, RI

Average sunshine days in August - Bristol, RI
  • Average sunshine days in August: 16.1 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is April (13.6 days).

Average UV index in August
Bristol, RI

Average UV index in August - Bristol, 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).

Average cloud cover in August
Bristol, RI

Average cloud cover in August - Bristol, RI
  • Average cloud cover in August: 29

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in August
Bristol, RI

Average visibility in August - Bristol, 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).

Bristol, Rhode Island, USA

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