Annual mean 12°C · wettest around December · prevailing wind W
Warmest
27.6 °C
Coldest
2.3 °C
Wettest
14%
Windiest
5.5 m/s
Prevailing
W
4.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Central Islip over the whole year is 12°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -1°C. Central Islip has no sharply defined rainy season: the chance of rain on a given day runs from 7% in June, the driest month, to 13% in December, the wettest. Winds in Central Islip are highest in March, averaging 4.4 m/s (16 km/h), and lightest in July, at 3.1 m/s (11 km/h). The prevailing wind is from the W. The clearest skies in Central Islip come in November, when the sky is typically 42% covered; May is the cloudiest month, at 55%.
Month by month Central Islip climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
3°C
-1°C
-3°C
11%
53%
4.1 m/s
0
0
7
February
4°C
0°C
-1°C
13%
52%
3.9 m/s
1
0
13
March
8°C
3°C
2°C
10%
51%
4.4 m/s
3
0
27
April
13°C
8°C
8°C
12%
53%
4.1 m/s
14
1
55
May
18°C
13°C
15°C
11%
55%
3.6 m/s
53
7
78
June
24°C
19°C
23°C
7%
46%
3.4 m/s
78
34
54
July
27°C
22°C
28°C
8%
44%
3.1 m/s
45
68
13
August
26°C
21°C
27°C
8%
43%
3.1 m/s
57
60
23
September
23°C
17°C
22°C
9%
47%
3.2 m/s
76
28
57
October
18°C
12°C
15°C
11%
49%
3.4 m/s
51
5
77
November
11°C
6°C
6°C
9%
42%
3.7 m/s
12
0
44
December
5°C
2°C
0°C
13%
53%
3.7 m/s
0
0
16
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Central Islip weather by season
Year round, Central Islip has days of about 3°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -1°C to 22°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around December and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Central Islip weather in winterDecember to February
High 4°CLow 0°CRain 12%
Winter in Central Islip has typical daily highs of about 4°C and lows of about 0°C, with a 12% chance of rain on a given day.
Central Islip weather in springMarch to May
High 13°CLow 8°CRain 11%
Spring in Central Islip has typical daily highs of about 13°C and lows of about 8°C, with a 11% chance of rain on a given day.
Central Islip weather in summerJune to August
High 26°CLow 21°CRain 7%
Summer in Central Islip has typical daily highs of about 26°C and lows of about 21°C, with a 7% chance of rain on a given day.
Central Islip weather in autumnSeptember to November
High 17°CLow 12°CRain 10%
Autumn in Central Islip has typical daily highs of about 17°C and lows of about 12°C, with a 10% chance of rain on a given day.
When is the rainy season in Central Islip?
Central Islip has no sharply defined rainy season: the chance of rain on a given day runs from 7% in June, the driest month, to 13% in December, the wettest.
What time of year is Central Islip windiest?
Winds in Central Islip are highest in March, averaging 4.4 m/s (16 km/h), and lightest in July, at 3.1 m/s (11 km/h). The prevailing wind is from the W.
What is the average temperature in Central Islip year round?
The average temperature in Central Islip over the whole year is 12°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -1°C.