World Resorts USA Nantucket Weather

Nantucket weather in April

Weather in Nantucket: April

Average day temperature: 47.3°F
Average night temperature: 45.1°F
Sea water temperature: 45.8°F
Number of sunny days: 9 days
Day length: 12.7 - 13.9 hours
Number of rainy days: 2 days
Precipitation totals: 1.0 in.

Air temperature in April, °F

Show year:
2026
2025
2024

The highest day temperature during April of 2026 was 68°F. At the same time the lowest night temperature was 33°F. Daily and nightly averages during April were 51.4°F and 43.2°F.

Sea water temperature in Nantucket in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 45.0°F. The highest and lowest sea temperatures during the month were 48.6°F and 40.6°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 Nantucket in April is 1.0 in. Other months of the year show relatively similar values.

Wind speed in April, mph

The average wind speed value in April is 17.2 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: 6.7.

Best time for vacation in Nantucket

Sunniest months:
June 13 days
October 13 days
September 13 days
Warmest months:
August 70.9 °F
July 70.6 °F
September 67.1 °F
Warmest sea temp:
August 72.0 °F
July 70.1 °F
September 68.5 °F
Coldest months:
February 36.1 °F
January 36.4 °F
March 40.7 °F
Rainiest months:
October 4 days
January 3 days
December 3 days
Windiest months:
January 19.0 mph
March 19.0 mph
December 18.9 mph

Nantucket on a weather map

Nantucket
+46°F
W 17 mph
Feels like: +41°F
Precip.: 75%
Places in USA:
Name
°F
+57°F
+75°F
+75°F
+61°F
+68°F
+88°F
+82°F
+72°F
+50°F
+66°F
+59°F
+82°F
+90°F
+88°F
+50°F
24 Hours Forecast
Nantucket
Local time: 15:35
April 26, sunday
1800
48°F
SW
17 mph
2100
45°F
SW
16 mph
April 27, monday
0000
46°F
SW
14 mph
0300
48°F
SW
17 mph
0600
48°F
SW
19 mph
0900
48°F
SW
19 mph
1200
48°F
SW
20 mph
1500
48°F
SW
23 mph
Units of measurement: °C / °F