World Resorts USA Fire Island Weather

Fire Island weather in April

Weather in Fire Island: April

Average day temperature: 55.0°F
Average night temperature: 47.4°F
Sea water temperature: 47.6°F
Number of sunny days: 10 days
Day length: 12.7 - 13.9 hours
Number of rainy days: 3 days
Precipitation totals: 1.2 in.

Air temperature in April, °F

Show year:
2026
2025
2024

The highest day temperature during April of 2026 was 85°F. At the same time the lowest night temperature was 30°F. Daily and nightly averages during April were 59.7°F and 45.4°F.

Sea water temperature in Fire Island in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 45.1°F. The highest and lowest sea temperatures during the month were 49.6°F and 41.0°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in April is almost equal.

Precipitation total in April, in.

Precipitation total value in Fire Island in April is 1.2 in. Other months of the year show relatively similar values.

Wind speed in April, mph

The average wind speed value in April is 11.0 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 April is: 7.2.

Best time for vacation in Fire Island

Sunniest months:
November 16 days
September 15 days
October 14 days
Warmest months:
July 81.4 °F
August 79.7 °F
June 74.2 °F
Warmest sea temp:
July 76.8 °F
August 76.1 °F
September 72.2 °F
Coldest months:
January 37.4 °F
February 38.2 °F
December 42.4 °F
Rainiest months:
March 3 days
December 3 days
April 3 days
Windiest months:
March 11.7 mph
January 11.5 mph
November 11.5 mph

Fire Island on a weather map

Fire Island
+54°F
N 5 mph
Feels like: +52°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+73°F
+73°F
+57°F
+52°F
+79°F
+79°F
+66°F
+54°F
+54°F
+50°F
+77°F
+75°F
+75°F
+52°F
24 Hours Forecast
Fire Island
Local time: 08:27
April 29, wednesday
0900
54°F
N
5 mph
1200
59°F
NW
8 mph
1500
54°F
N
8 mph
1800
52°F
N
7 mph
2100
52°F
N
8 mph
April 30, thursday
0000
50°F
N
9 mph
0300
48°F
NW
11 mph
0600
50°F
NW
6 mph
Units of measurement: °C / °F