Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August's beginning signals an average high-temperature of a still warm 78.4°F (25.8°C), barely different from July's 79°F (26.1°C). August nighttime temperatures in West Islip, New York, hover close to the daytime peak with an average of 72°F (22.2°C).Humidity
The average relative humidity in August is 73%.Rainfall
In August, in West Islip, the rain falls for 16.3 days. Throughout August, 3.58" (91mm) of precipitation is accumulated. Throughout the year, in West Islip, there are 157 rainfall days, and 35.98" (914mm) of precipitation is accumulated.Snowfall
In West Islip, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 44min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:08 pm. On the last day of August, in West Islip, sunrise is at 6:20 am and sunset at 7:26 pm EDT.
Sunshine
In August, the average sunshine in West Islip is 10.7h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in West Islip. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during August leads to these instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August in West Islip?
What is the average humidity in August in West Islip?
How much does it rain in West Islip in August?
When it does not snow in West Islip?
How many hours of daylight does West Islip have in August?
When is the sunrise / sunset in August in West Islip?
How many hours of sunshine does West Islip have in August?
What is the month with the highest UV index in West Islip?
How high is the UV index in August in West Islip?
Average temperature in August
West 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 months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in August
West 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
West Islip, NY
- Average wind speed in August: 9mph
The windiest month (with the highest average wind speed) is January (13.6mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in August
West Islip, NY
- Average humidity in August: 73%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in August
West Islip, NY
- Average rainfall in August: 3.58"
The wettest month (with the highest rainfall) is July (3.98").
The driest month (with the least rainfall) is January (2.2").
Average rainfall days in August
West Islip, NY
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in August
West Islip, NY
- Average snowfall in August: 0"
The month with the highest snowfall is March (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
West 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
West Islip, NY
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 4min
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
West Islip, NY
- Average sunshine days in August: 12.2 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in August
West 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
West 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
West 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).
West Islip, New York, USA
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