Measurements:
°C
°F
Charlestown
60°F
S 7 mph
Feels like: 58°F
Precip: 0%
World Resorts USA Charlestown Weather May Weather in Charlestown

Charlestown Weather: May

Average Day Temperature: 62.7°F
Average Night Temperature: 51.6°F
Sea Water Temperature: 52.2°F
Number of Sunny Days: 11 days
Sunshine Hours: 14.0 - 14.9 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.4 in

Air Temperature in May, °F

Select Year: 2023 2022 2021

The highest day temperature in May 2023 was 74°F. The lowest night temperature was 42°F. The average values for day and night temperatures during May were 64.6°F и 51.3°F respectivly.

Charlestown Water Sea Temperature in May, °F

Select Year: 2023 2022 2021

The average sea surface temperature in May 2023 for Charlestown was 54.4°F. The maximum and minimum values were 50.2°F and 59.2°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Charlestown is 1.4 in.

Wind Speed in May, mph

The average wind speed in May is 10.0 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Charlestown in May is 8.2 hours.

Best Time to Visit Charlestown
The most sunny months:
November 17 days
September 15 days
October 12 days
The most warm months:
July 81.5 °F
August 80.3 °F
September 73.1 °F
Warmest sea temperature:
August 73.7 °F
July 72.1 °F
September 71.1 °F
The most cold months:
January 36.1 °F
February 36.6 °F
December 42.1 °F
The most rainy months:
October 4 days
April 3 days
November 3 days
The most windy months:
January 12 mph
March 12 mph
December 12 mph

Charlestown on the Weather Map

USA Resorts:
NAME
Boston +60
Chicago +58
Hawaii +76
Honolulu +76
Houston +74
Las Vegas +66
Los Angeles +60
Miami +78
New York +70
Orlando +76
San Diego +60
San Francisco +50
Sarasota +74
Tampa +74
Washington +76
24 Hours Weather Forecast
Charlestown
Local time: 07:59
29 apr, monday
0900 60°F
S
7 mph
1200 58°F
W
10 mph
1500 56°F
NW
9 mph
1800 52°F
NW
11 mph
2100 50°F
N
6 mph
30 apr, tuesday
0000 50°F
N
6 mph
0300 50°F
N
4 mph
0600 50°F
N
6 mph