Current sea water temperature:
+59.4°F
| Minimum sea water temperature in October: | 78.1°F |
| Maximum sea water temperature in October: | 57.2°F |
| Average sea water temperature in October: | 64.6°F |
| more information | |
14 days
forecast
forecast
| Fire Island |
monthly
weather
weather
| Fire Island |
Sea water temperature for the last 10 days:
| October 28 | 59.4°F | October 23 | 59.5°F |
| October 27 | 59.4°F | October 22 | 60.3°F |
| October 26 | 59.2°F | October 21 | 60.8°F |
| October 25 | 59.0°F | October 20 | 62.1°F |
| October 24 | 59.9°F | October 19 | 62.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Fire Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Fire Island was noticed in July, August and September.
Monthly Sea Temperatures in Fire Island, °F
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 74.5°F. The highest and lowest sea temperatures during the month were 81.5°F and 71.6°F.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 76.4°F. The highest and lowest sea temperatures during the month were 80.1°F and 73.4°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 70.7°F. The highest and lowest sea temperatures during the month were 75.6°F and 61.0°F.
current
weather
weather
| Fire Island |
weather in
November
November
| Fire Island |
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: 12:35
October 29, thursday
1500
64°F
NE
10 mph
10 mph
1800
61°F
NE
8 mph
8 mph
2100
61°F
NE
9 mph
9 mph
October 30, friday
0000
61°F
NE
9 mph
9 mph
0300
59°F
NE
9 mph
9 mph
0600
59°F
E
9 mph
9 mph
0900
61°F
E
8 mph
8 mph
1200
68°F
SE
11 mph
11 mph
