Mild
Average highs are around 24°C, so days are mild rather than hot.
September verdict
Central Islip, New York, United States in September
Weather score60Good
Good for holiday weather
Average highs are around 24°C, so days are mild rather than hot. Sunshine averages 7.3h per day, enough for a balanced month. Rainfall averages 88mm, so some wet days are possible.
September weather
Monthly averages
Temp
24°C
Rain
88mm
Sun
7.3h
Sea
21°C
Weather score
60
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 88mm, so some wet days are possible.
Some sun
Sunshine averages 7.3h per day, enough for a balanced month.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Weather map
Compare Central Islip, New York, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September24°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September88mm average rain
September is close to Central Islip's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
September7.3 hours average sun
September sits close to Central Islip's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September21°C average sea
September is one of Central Islip's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
Weather score
September60 weather score
September scores above Central Islip's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
