August weather forecastWestbrook, CT
August
Weather in August
As Westbrook moves into August, the tantrums of the peak summer heat subside slightly. Although the retreat in temperature is mild, it makes summer more manageable and enjoyable. Preferred clothings are still light summer attires as the sea temperature rises to a warm and inviting 72.1°F (22.3°C). This period still allows for nearly all outdoor activities without any major weather disturbances. Become lost in the natural beauty that engulfs the city’s parks and countryside, while savoring every sun-soaked moment.Temperature
Westbrook records a slight change with August's average high-temperatures adjusting to a still warm 78.6°F (25.9°C) from July's 79.7°F (26.5°C). The nights of August anticipate an average low-temperature of 65.7°F (18.7°C).Humidity
In Westbrook, the average relative humidity in August is 77%.Rainfall
In August, the rain falls for 16.4 days. Throughout August, 2.91" (74mm) of precipitation is accumulated. In Westbrook, during the entire year, the rain falls for 166.2 days and collects up to 34.8" (884mm) of precipitation.Snowfall
In Westbrook, snow does not fall in June through October.Ocean temperature
With an average ocean temperature of 72.1°F (22.3°C), August is the month with the warmest seawater.Note: The cold tolerance of an individual, along with sunshine, wind, and the temperature of the environment, affects the enjoyment of swimming in 72.1°F (22.3°C) waters. (Olympic swimmers participate in waters ranging from 77°F (25°C) to 82.4°F (28°C).)
Daylight
In Westbrook, the average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:06 pm. On the last day of August, sunrise is at 6:15 am and sunset at 7:23 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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. 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. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Westbrook, CT
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in August
Westbrook, CT
- 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).
Average wind speed in August
Westbrook, CT
- Average wind speed in August: 7.1mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in August
Westbrook, CT
- Average humidity in August: 77%
The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in August
Westbrook, CT
- Average rainfall in August: 2.91"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in August
Westbrook, CT
- Average rainfall days in August: 16.4 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).
Average snowfall in August
Westbrook, CT
- Average snowfall in August: 0"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Westbrook, CT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Westbrook, CT
- Average sea temperature in August: 72.1°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in August /
Average sunshine in August
Westbrook, CT
- Average daylight in August: 13h and 48min
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 18min).
- Average sunshine in August: 10h and 36min
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 August
Westbrook, CT
- Average sunshine days in August: 11.9 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in August
Westbrook, CT
- 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, November and December (UV index 2).
Average cloud cover in August
Westbrook, CT
- Average cloud cover in August: 29
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Westbrook, CT
- 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).





