World Resorts USA Block Island Weather

Block Island Sea Temperature in April

Average sea water temperature in April:
+44.8°F
Minimum sea water temperature in April: 48.6°F
Maximum sea water temperature in April: 41.5°F

Daily sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 44.0°F. The highest and lowest sea temperatures during the month were 46.9°F and 42.3°F.

Monthly sea water temperature in Block Island, °F

Which USA resorts have warmest sea in April?

Place name April 2025 April 2024
Everglades 78.8°F 78.0°F
Key Largo 78.5°F 77.3°F
Islamorada 78.4°F 77.5°F
West Palm Beach 78.3°F 77.5°F
Miami Beach 78.3°F 77.1°F
Kailua Kona 78.1°F 76.9°F
Fort Lauderdale 78.0°F 76.9°F
Key West 78.0°F 77.6°F
Miami 77.9°F 76.9°F
Honolulu 77.4°F 76.2°F
Hawaii 77.3°F 76.1°F
Marco Island 77.3°F 76.6°F
Naples 77.0°F 76.3°F
Sanibel Island 76.7°F 75.8°F
Tampa 76.6°F 74.1°F
Maui 76.6°F 75.4°F
Oahu 76.4°F 75.0°F
St. Petersburg 76.3°F 74.2°F
Sarasota 76.0°F 74.3°F
Siesta Key 75.7°F 74.3°F

Best time for vacation in Block Island

Sunniest months:
November 16 days
September 14 days
October 14 days
Warmest months:
July 74.4 °F
August 73.5 °F
September 68.8 °F
Warmest sea temp:
August 70.1 °F
July 68.6 °F
September 68.3 °F
Coldest months:
January 37.4 °F
February 37.4 °F
December 42.6 °F
Rainiest months:
October 4 days
January 3 days
March 3 days
Windiest months:
December 16.0 mph
November 15.7 mph
January 15.6 mph

Block Island on a weather map

Block Island
+32°F
E 37 mph
Feels like: +18°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+73°F
+73°F
+50°F
+57°F
+64°F
+70°F
+68°F
+30°F
+63°F
+48°F
+64°F
+61°F
+41°F
+16°F
24 Hours Forecast
Block Island
Local time: 00:40
December 30, tuesday
0300
28°F
E
39 mph
0600
27°F
E
38 mph
0900
30°F
E
36 mph
1200
32°F
E
37 mph
1500
32°F
E
35 mph
1800
32°F
E
35 mph
2100
32°F
E
34 mph
December 31, wednesday
0000
32°F
E
34 mph
Units of measurement: °C / °F