World Resorts USA Block Island Weather

Block Island Sea Temperature in July

Average sea water temperature in July:
+68.4°F
Minimum sea water temperature in July: 73.0°F
Maximum sea water temperature in July: 63.3°F

Daily sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 67.3°F. The highest and lowest sea temperatures during the month were 69.3°F and 65.5°F.

Monthly sea water temperature in Block Island, °F

Which USA resorts have warmest sea in July?

Place name July 2026 July 2025
Key West 88.5°F 86.7°F
Key Largo 88.2°F 86.2°F
Clearwater Beach 87.9°F 87.1°F
Naples 87.7°F 86.6°F
Tampa 87.6°F 86.8°F
Sarasota 87.6°F 86.9°F
Cape Coral 87.6°F 86.4°F
Siesta Key 87.6°F 86.9°F
New Orleans 87.5°F 87.4°F
Miami 87.4°F 86.3°F
Miami Beach 87.0°F 86.0°F
Houston 86.7°F 86.3°F
Fort Lauderdale 86.6°F 85.0°F
Hilton Head Island 86.3°F 85.7°F
St. George Island 86.3°F 86.4°F
Tybee Island 86.3°F 85.4°F
Pensacola 86.1°F 86.9°F
Orange Beach 86.1°F 86.7°F
West Palm Beach 86.1°F 84.6°F
Kiawah Island 86.0°F 84.8°F

Best time for vacation in Block Island

Sunniest months:
November 16 days
June 14 days
October 14 days
Warmest months:
July 74.8 °F
August 74.2 °F
September 69.0 °F
Warmest sea temp:
August 70.1 °F
July 68.4 °F
September 68.3 °F
Coldest months:
January 36.8 °F
February 36.9 °F
December 42.5 °F
Rainiest months:
October 4 days
January 3 days
March 3 days
Windiest months:
December 16.1 mph
January 16.0 mph
November 15.7 mph

Block Island on a weather map

Block Island
+63°F
S 16 mph
Feels like: +63°F
Precip.: 40%
Places in USA:
Name
°F
+57°F
+70°F
+79°F
+73°F
+79°F
+86°F
+64°F
+59°F
+73°F
+61°F
+75°F
+86°F
+93°F
+66°F
24 Hours Forecast
Block Island
Local time: 14:35
September 28, monday
1500
63°F
S
16 mph
1800
59°F
S
22 mph
2100
57°F
S
20 mph
September 29, tuesday
0000
55°F
SE
17 mph
0300
55°F
SE
13 mph
0600
57°F
SE
11 mph
0900
57°F
SE
9 mph
1200
63°F
E
9 mph
Units of measurement: °C / °F