August weather forecastCentral Islip, NY
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Central Islip, New York, with temperature in the range of an average high of 78.4°F (25.8°C) and an average low of 72°F (22.2°C).Temperature
Transitioning into August, Central Islip records an average high-temperature of a still warm 78.4°F (25.8°C), almost identical to July's 79°F (26.1°C). Central Islip encounters a small divergence from daytime high temperatures, averaging a low-temperature of 72°F (22.2°C) during August nights.Humidity
In Central Islip, the average relative humidity in August is 73%.Rainfall
In Central Islip, during August, the rain falls for 16.3 days and regularly aggregates up to 3.35" (85mm) of precipitation. Throughout the year, there are 153.2 rainfall days, and 34.45" (875mm) of precipitation is accumulated.Snowfall
In Central Islip, snow does not fall in April through September.Daylight
In Central Islip, the average length of the day in August is 13h and 45min.On the first day of August, sunrise is at 5:50 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:26 pm EDT.
Sunshine
In August, the average sunshine is 10.7h.UV index
The months with the highest UV index in Central Islip are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 during August translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Central Islip, NY
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in August: 72°F
The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in August
Central Islip, 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
Central Islip, NY
- Average wind speed in August: 8.8mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in August
Central Islip, NY
- Average humidity in August: 73%
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in August
Central Islip, NY
- Average rainfall in August: 3.35"
The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in August
Central Islip, NY
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in August
Central Islip, NY
- Average snowfall in August: 0"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in August
Central Islip, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Central Islip, 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 42min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in August
Central Islip, NY
- Average sunshine days in August: 12.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in August
Central Islip, 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
Central Islip, NY
- Average cloud cover in August: 27
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Central Islip, 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).
