August weather forecastBrookhaven, NY
August
Weather in August
August, the last month of the summer in Brookhaven, is also a moderately hot month, with an average temperature ranging between max 77.5°F (25.3°C) and min 71.4°F (21.9°C).Temperature
August, noted for its average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 71.4°F (21.9°C), is considered the warmest month.Humidity
The average relative humidity in August in Brookhaven is 75%.Rainfall
In August, the rain falls for 15.2 days. Throughout August, 2.68" (68mm) of precipitation is accumulated. In Brookhaven, during the entire year, the rain falls for 156.2 days and collects up to 30.2" (767mm) of precipitation.Snowfall
In Brookhaven, New York, snow does not fall in May through October.Daylight
In August, the average length of the day is 13h and 45min.On the first day of August, sunrise is at 5:48 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:25 pm EDT.
Sunshine
July and August, with an average of 10.8h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during August leads to these advisories:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full 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
Brookhaven, NY
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in August: 71.4°F
The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in August
Brookhaven, NY
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Brookhaven, NY
- Average wind speed in August: 9.6mph
The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.6mph).
Average humidity in August
Brookhaven, NY
- Average humidity in August: 75%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).
Average rainfall in August
Brookhaven, NY
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is December (3.31").
The driest months (with the least rainfall) are January, February and September (2.01").
Average rainfall days in August
Brookhaven, NY
- Average rainfall days in August: 15.2 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (9 days).
Average snowfall in August
Brookhaven, NY
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Brookhaven, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Brookhaven, NY
- Average daylight in August: 13h and 42min
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 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in August
Brookhaven, NY
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in August
Brookhaven, NY
- 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
Brookhaven, NY
- Average cloud cover in August: 26
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in August
Brookhaven, NY
- 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).
