World Resorts USA Block Island

Block Island Monthly Weather Averages

Please click on any column to get detailed information about Block Island weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

The warmest month in Block Island is july. The average daily temp is 75.0°F. The average nightly temp is 71.0°F.

Sea water temperature, °F

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 70.3°F.

Precipitation total, in.

June is the month with least precipitations during the year. The average precipitation totals for this month is 1.0 in. The month with most precipitation total is December.

Number of rainy days

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

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

Best time for vacation in Block Island

Sunniest months:
November 15 days
September 14 days
June 14 days
Warmest months:
July 75.0 °F
August 74.2 °F
September 68.7 °F
Warmest sea temp:
August 70.3 °F
July 68.6 °F
September 68.4 °F
Coldest months:
February 37.8 °F
January 37.9 °F
March 42.8 °F
Rainiest months:
October 4 days
February 3 days
January 3 days
Windiest months:
November 15.0 mph
December 14.9 mph
March 14.9 mph

Block Island on a weather map

Block Island
+23°F
SE 20 mph
Feels like: +7°F
Precip.: 0%
Places in USA:
Name
°F
+14°F
+23°F
+75°F
+75°F
+50°F
+54°F
+61°F
+19°F
+50°F
+54°F
+54°F
+48°F
+46°F
+46°F
+23°F
24 Hours Forecast
Block Island
Local time: 04:34
December 22, sunday
0600
23°F
SE
20 mph
0900
21°F
SE
19 mph
1200
25°F
SE
17 mph
1500
28°F
SE
16 mph
1800
30°F
S
16 mph
2100
27°F
S
16 mph
December 23, monday
0000
25°F
S
11 mph
0300
23°F
S
9 mph
Units of measurement: °C / °F