August weather forecastFairhaven, MA
August
Weather in August
August, the last month of the summer in Fairhaven, is another warm month, with an average temperature fluctuating between 65.8°F (18.8°C) and 78.3°F (25.7°C).Temperature
Fairhaven's weather in August displays an average high-temperature of a still warm 78.3°F (25.7°C), showing minor disparity from July's 78.4°F (25.8°C). August witnesses an average nighttime temperature of 65.8°F (18.8°C).Humidity
The average relative humidity in August is 78%.Rainfall
In Fairhaven, during August, the rain falls for 12.1 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Fairhaven, during the entire year, the rain falls for 133.2 days and collects up to 17.2" (437mm) of precipitation.Snowfall
In Fairhaven, snow does not fall in May through October.Ocean temperature
With an average ocean temperature of 68.5°F (20.3°C), August is the month with the warmest seawater.Note: For most people, swimming in water at 68.5°F (20.3°C) is not a pleasurable experience. Breathing control gets harder as the water temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Fairhaven, the average length of the day in August is 13h and 48min.On the first day of August, sunrise is at 5:38 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:18 pm EDT.
Sunshine
With an average of 10.6h of sunshine, August has the most sunshine of the year.UV index
June through 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 threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 6 in August translates into this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Fairhaven, MA
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in August
Fairhaven, MA
- 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
Fairhaven, MA
- Average wind speed in August: 8mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (8mph).
Average humidity in August
Fairhaven, MA
- Average humidity in August: 78%
The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are March, April and November (74%).
Average rainfall in August
Fairhaven, MA
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in August
Fairhaven, MA
- Average rainfall days in August: 12.1 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in August
Fairhaven, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Fairhaven, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in August
Fairhaven, MA
- Average sea temperature in August: 68.4°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).
Average daylight in August /
Average sunshine in August
Fairhaven, MA
- 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 12min).
- Average sunshine in August: 10h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in August
Fairhaven, MA
- Average sunshine days in August: 16.1 days
The months with the most sunshine days are November and December (18.3 days).
The month with the least sunshine days is April (14.4 days).
Average UV index in August
Fairhaven, MA
- 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
Fairhaven, MA
- Average cloud cover in August: 28
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Fairhaven, MA
- 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).





