Temperature
Cold by day, cold at night.
Plenty of sun. Cold weather is the main drawback.
Cold by day, cold at night.
Several rainy days. About 11 wet days, the highest monthly average.
A mix of sunshine and cloud.
Humidity is rarely noticeable in the cool air.
In March, afternoons feel about 32° and nights feel near 28°.
Partly cloudy skies this month.
Breezy March days can feel brisker in open spots.
March late afternoons are around 43°F, and early evening stays near 42°F.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 40 | 31 | 3.9 | 10 | 6.6 | 70 | 42 |
| Feb | 40 | 31 | 3.6 | 10 | 7.5 | 69 | 39 |
| Mar | 46 | 36 | 4.5 | 11 | 8.5 | 69 | 40 |
| Apr | 54 | 45 | 4.0 | 11 | 9.5 | 71 | 45 |
| May | 62 | 54 | 3.7 | 11 | 10.4 | 76 | 54 |
| Jun | 72 | 65 | 3.6 | 10 | 11.5 | 78 | 66 |
| Jul | 78 | 72 | 3.5 | 10 | 12.1 | 78 | 75 |
| Aug | 78 | 71 | 3.7 | 10 | 11.3 | 77 | 76 |
| Sep | 72 | 65 | 3.9 | 9 | 9.6 | 76 | 72 |
| Oct | 63 | 55 | 4.7 | 10 | 8.2 | 73 | 64 |
| Nov | 54 | 46 | 3.4 | 9 | 6.9 | 69 | 56 |
| Dec | 45 | 37 | 4.9 | 11 | 5.9 | 71 | 48 |
Similar climates
Want a side-by-side climate view? Compare Fire Island with Long Beach Island.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology