Islip, NY weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Islip now
Loading the National Weather Service forecast…
Islip weather by the hour
Islip weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Islip.
This week in Islip
Sunrise, sunset and moon in Islip
What is the weather usually like in Islip?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 80°F average high
- Januarycoldest month · 26°F average low
- 49.9 inprecipitation per year · 1,267 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Islip: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station MOLLOY CERCOM, NY US (USC00302151), adjusted for the elevation of Islip.
Islip weather month by month
Sunrise and sunset in Islip through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:13 AM | 4:51 PM | 9 h 38 min |
| February | 6:44 AM | 5:28 PM | 10 h 44 min |
| March | 7:02 AM | 7:00 PM | 11 h 58 min |
| April | 6:12 AM | 7:33 PM | 13 h 21 min |
| May | 5:33 AM | 8:04 PM | 14 h 30 min |
| June | 5:19 AM | 8:27 PM | 15 h 8 min |
| July | 5:33 AM | 8:24 PM | 14 h 51 min |
| August | 6:02 AM | 7:52 PM | 13 h 50 min |
| September | 6:32 AM | 7:03 PM | 12 h 31 min |
| October | 7:02 AM | 6:14 PM | 11 h 11 min |
| November | 6:38 AM | 4:36 PM | 9 h 57 min |
| December | 7:08 AM | 4:27 PM | 9 h 19 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Islip?
Islip has a humid subtropical climate. The warmest month is August, with an average high of 80°F (27°C), and the coldest is January, with average lows of 26°F (-3°C).
It gets about 49.9 inches (1,267 mm) of precipitation a year. The wettest month is August and the driest is November.
The best time to visit Islip is June to September. At 16 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Islip
Weather in towns near Islip
Questions about the weather in Islip
What is the hottest month in Islip?
August, with an average high of 80°F (27°C).
What is the coldest month in Islip?
January, with an average low of 26°F (-3°C).
How much does it rain in Islip?
About 49.9 inches (1,267 mm) a year; the wettest month is August.
Does it snow in Islip?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Islip?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Islip have?
Humid subtropical (Köppen Cfa).
What is the weather like in Islip in November?
Highs average 53°F and lows 40°F, with about 3.0 inches of precipitation.
What time is sunrise in Islip?
Around 6:38 AM in mid-November, and sunset around 4:36 PM. Today’s exact times are shown above.
Where does this Islip weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Islip.
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