World Resorts USA Block Island Weather

Block Island weather in May

Weather in Block Island: May

Average day temperature: 58.3°F
Average night temperature: 52.7°F
Sea water temperature: 50.8°F
Number of sunny days: 12 days
Day length: 14.0 - 14.9 hours
Number of rainy days: 3 days
Precipitation totals: 1.4 in.

Air temperature in May, °F

Show year:
2023
2022
2021

The highest day temperature during May of 2023 was 67°F. At the same time the lowest night temperature was 46°F. Day and night temperature averages during May were 59.6°F and 53.8°F.

Sea water temperature in Block Island in May, °F

Show year:
2023
2022
2021

The average sea water temperature in May of 2023 was 52.9°F. The highest and lowest sea temperatures during the month were 57.4°F and 48.2°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in May is almost equal.

Precipitation total in May, in.

Precipitation total value in Block Island in May is 1.4 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 12.2 mph It makes May one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.5.

Best time for vacation in Block Island

Sunniest months:
September 15 days
November 15 days
June 13 days
Warmest months:
July 75.5 °F
August 74.9 °F
September 69.4 °F
Warmest sea temp:
August 70.5 °F
September 68.8 °F
July 68.7 °F
Coldest months:
February 37.8 °F
January 37.9 °F
March 42.8 °F
Rainiest months:
November 4 days
October 4 days
February 3 days
Windiest months:
December 14.9 mph
March 14.9 mph
January 14.7 mph

Block Island on a weather map

Block Island
+55°F
NE 12 mph
Feels like: +52°F
Precip.: 0%
Places in USA:
Name
°F
+59°F
+59°F
+75°F
+75°F
+82°F
+63°F
+82°F
+63°F
+81°F
+61°F
+55°F
+79°F
+81°F
+79°F
+55°F
24 Hours Forecast
Block Island
Local time: 23:22
May 15, wednesday
0000
55°F
NE
12 mph
0300
54°F
NE
8 mph
0600
54°F
N
6 mph
0900
54°F
N
7 mph
1200
54°F
N
8 mph
1500
54°F
NW
7 mph
1800
55°F
NW
10 mph
2100
55°F
W
9 mph
Units of measurement: °C / °F