World Resorts USA Block Island Weather

Block Island 7 Days Forecast

09.01
fri
Day
46°F
N 13 mph
Precip.
0%
Night
46°F
NE 22 mph
Precip.
100%
10.01
sat
Day
41°F
W 8 mph
Precip.
0%
Night
41°F
SW 18 mph
Precip.
100%
11.01
sun
Day
39°F
E 10 mph
Precip.
100%
Night
36°F
E 31 mph
Precip.
0%
12.01
mon
Day
34°F
E 24 mph
Precip.
0%
Night
39°F
NE 22 mph
Precip.
0%
13.01
tue
Day
37°F
E 18 mph
Precip.
0%
Night
45°F
NE 27 mph
Precip.
0%
14.01
wed
Day
41°F
NE 24 mph
Precip.
100%
Night
43°F
NE 16 mph
Precip.
21%
15.01
thu
Day
30°F
NE 17 mph
Precip.
0%
Night
27°F
S 23 mph
Precip.
0%

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 43.1°F. The highest and lowest sea temperatures during the month were 47.1°F and 41.0°F.

Air temperature in Block Island, °F

Precipitation total in Block Island, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Block Island

Sunniest months:
November 16 days
December 14 days
September 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 42.5 °F
Rainiest months:
October 4 days
January 3 days
March 3 days
Windiest months:
December 16.1 mph
November 15.7 mph
January 15.6 mph

Block Island on a weather map

Current weather
20:53
Block Island
+48°F
N 20 mph
Feels like: +41°F
Precip.: 86%
Places in USA:
Name
°F
Washington
+54°F
Hawaii
+75°F
Honolulu
+75°F
Las Vegas
+46°F
Los Angeles
+55°F
Miami
+73°F
Miami Beach
+73°F
Maui
+72°F
New York
+48°F
San Diego
+64°F
San Francisco
+54°F
Sarasota
+70°F
Tampa
+73°F
Houston
+73°F
Chicago
+37°F
all places
24 Hours Forecast
Block Island
Local time: 20:53
January 09, friday
2100
48°F
N
20 mph
January 10, saturday
0000
46°F
NE
22 mph
0300
45°F
E
15 mph
0600
41°F
SE
12 mph
0900
41°F
S
8 mph
1200
41°F
W
8 mph
1500
41°F
W
13 mph
1800
41°F
W
18 mph
Units of measurement: °C / °F