Current sea water temperature:
+66.4°F
| Minimum sea water temperature in June: | 75.6°F |
| Maximum sea water temperature in June: | 54.5°F |
| Average sea water temperature in June: | 65.6°F |
| more information | |
14 days
forecast
forecast
| Fire Island |
monthly
weather
weather
| Fire Island |
Sea water temperature for the last 10 days:
| June 8 | 66.4°F | June 3 | 60.3°F |
| June 7 | 67.1°F | June 1 | 57.6°F |
| June 6 | 64.4°F | May 31 | 54.5°F |
| June 5 | 61.7°F | May 30 | 56.1°F |
| June 4 | 61.2°F | May 29 | 56.5°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:
2025
2024
2023
The average sea water temperature in July of 2025 was 75.7°F. The highest and lowest sea temperatures during the month were 78.8°F and 71.6°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.8°F. The highest and lowest sea temperatures during the month were 78.4°F and 69.6°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 70.4°F. The highest and lowest sea temperatures during the month were 72.1°F and 68.4°F.
current
weather
weather
| Fire Island |
weather in
June
June
| 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: 15:27
June 08, monday
1800
72°F
N
11 mph
11 mph
2100
61°F
N
9 mph
9 mph
June 09, tuesday
0000
59°F
NE
9 mph
9 mph
0300
61°F
NE
8 mph
8 mph
0600
63°F
NE
8 mph
8 mph
0900
70°F
NE
11 mph
11 mph
1200
73°F
NE
12 mph
12 mph
1500
75°F
NE
14 mph
14 mph
