August weather forecastNassau, NY
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Nassau, New York, with an average temperature ranging between min 57.2°F (14°C) and max 79.2°F (26.2°C).Temperature
As Nassau transitions from July to August, the average high-temperatures adjust to a still moderately hot 79.2°F (26.2°C), nearly the same as the previous 81°F (27.2°C). Nassau encounters a substantial decline from its daily high to a low-temperature of 57.2°F (14°C) during August nights.Humidity
The average relative humidity in August is 77%.Rainfall
In Nassau, in August, during 16.3 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. In Nassau, during the entire year, the rain falls for 151.6 days and collects up to 28.78" (731mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 52min.On the first day of August, sunrise is at 5:47 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:29 pm EDT.
Sunshine
The months with the most sunshine are July and August, with an average of 10.3h of sunshine.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In August, an average UV index of 5 transforms into the following instructions:
Undertake precautions - Guarding against sun damage is counselled. To protect against the Sun's most potent rays, avoid direct exposure around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Nassau, NY
- Average high temperature in August: 79.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in August: 57.2°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in August
Nassau, 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 (29.92"Hg).
Average wind speed in August
Nassau, NY
- Average wind speed in August: 5.1mph
The windiest months (with the highest average wind speed) are January, February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in August
Nassau, NY
- Average humidity in August: 77%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in August
Nassau, NY
- Average rainfall in August: 2.91"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in August
Nassau, NY
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in August
Nassau, NY
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Nassau, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Nassau, NY
- Average daylight in August: 13h and 54min
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 6min).
- Average sunshine in August: 10h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in August
Nassau, NY
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in August
Nassau, NY
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Nassau, NY
- Average cloud cover in August: 34
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in August
Nassau, NY
- Average visibility in August: 5mi
The months with the highest visibility are April, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September and October (5mi).
