August weather forecastWellfleet, MA
August
Weather in August
As the last mere weeks of summer approach, August in Wellfleet remains blissfully warm, mimicking the prime conditions of July. Notably, sea temperature reaches the year's high of 67.5°F (19.7°C) in August, granting perfect conditions for a wide spectrum of water sports. The cloud cover begins to thicken, suggesting an upcoming shift in weather patterns. This month often serves as the unofficial summer end, before welcoming the start of autumn in September.Temperature
August is the warmest month of the year, registering average temperatures as high as 71.1°F (21.7°C) and as low as 67.6°F (19.8°C).Humidity
In Wellfleet, the average relative humidity in August is 83%.Rainfall
In Wellfleet, in August, it is raining for 11.5 days, with typically 1.26" (32mm) of accumulated precipitation. In Wellfleet, Massachusetts, during the entire year, the rain falls for 136.1 days and collects up to 17.24" (438mm) of precipitation.Snowfall
In Wellfleet, snow does not fall in May through October.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 67.5°F (19.7°C).Note: Most individuals do not find swimming at 67.5°F (19.7°C) to be enjoyable. As the water temperature declines below 69.8°F (21°C), maintaining control over one's breathing becomes harder.
Daylight
The average length of the day in August is 13h and 49min.On the first day of August, sunrise is at 5:34 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:14 pm EDT.
Sunshine
With an average of 10.6h of sunshine, August has the most sunshine of the year.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Deflect overexposure. Sun protection is a necessity. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Wellfleet, MA
- Average high temperature in August: 71.1°F
The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in August: 67.6°F
The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).
Average pressure in August
Wellfleet, MA
- Average pressure in August: 29.98"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 August
Wellfleet, MA
- Average wind speed in August: 11.6mph
The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).
Average humidity in August
Wellfleet, MA
- Average humidity in August: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in August
Wellfleet, MA
- Average rainfall in August: 1.26"
The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").
Average rainfall days in August
Wellfleet, MA
- Average rainfall days in August: 11.5 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in August
Wellfleet, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Wellfleet, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
Wellfleet, MA
- Average sea temperature in August: 67.5°F
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in August /
Average sunshine in August
Wellfleet, MA
- Average daylight in August: 13h and 48min
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 36min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in August
Wellfleet, MA
- Average sunshine days in August: 18.2 days
The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).
Average UV index in August
Wellfleet, MA
- Average UV index in August: 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 August
Wellfleet, MA
- Average cloud cover in August: 28
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Wellfleet, 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).
