Weather in Fire Island: May
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Average day temperature: | 64.0°F |
| Average night temperature: | 55.3°F | |
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Sea water temperature: | 55.7°F |
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Number of sunny days: | 13 days |
| Day length: | 14.0 - 14.9 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 0.9 in. | |
| more information | ||
14 days
forecast
forecast
| Fire Island |
sea water
temperature
temperature
| Fire Island |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 87°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during May were 68.3°F and 53.5°F.
Sea water temperature in Fire Island in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 53.4°F. The highest and lowest sea temperatures during the month were 56.5°F and 50.4°F.
Sunny, partly cloudy and cloudy days
Mostly all days in May are sunny but cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Fire Island in May is 0.9 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 9.8 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.2.
Best time for vacation in Fire Island
Fire Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Fire Island
Local time: 18:25
August 15, saturday
2100
75°F
N
2 mph
2 mph
August 16, sunday
0000
73°F
NE
4 mph
4 mph
0300
72°F
E
3 mph
3 mph
0600
70°F
S
2 mph
2 mph
0900
77°F
N
2 mph
2 mph
1200
81°F
N
9 mph
9 mph
1500
79°F
N
12 mph
12 mph
1800
75°F
N
12 mph
12 mph
