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 74.4°F. The average nightly temp is 70.9°F.

Sea water temperature, °F

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 70.1°F.

Precipitation total, in.

June is the month with least precipitations during the year. The average precipitation totals for this month is 0.8 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 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
March 42.7 °F
Rainiest months:
October 4 days
January 3 days
March 3 days
Windiest months:
November 15.7 mph
January 15.6 mph
March 15.4 mph

Block Island on a weather map

Block Island
+23°F
SE 25 mph
Feels like: +9°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+77°F
+77°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
Block Island
Local time: 00:27
December 05, friday
0300
19°F
S
15 mph
0600
19°F
S
11 mph
0900
23°F
S
5 mph
1200
28°F
N
4 mph
1500
30°F
NE
9 mph
1800
34°F
NE
6 mph
2100
36°F
NE
6 mph
December 06, saturday
0000
37°F
NE
5 mph
Units of measurement: °C / °F