Measurements:
°C
°F
Charlestown
58°F
SE 17 mph
Feels like: 54°F
Precip: 2%
World Resorts USA Charlestown Weather June Weather in Charlestown

Charlestown Weather: June

Average Day Temperature: 71.1°F
Average Night Temperature: 63.2°F
Sea Water Temperature: 62.6°F
Number of Sunny Days: 12 days
Sunshine Hours: 15.0 - 15.2 hours
Number of Rainy Days: 2 days
Precipitation Totals: 0.8 in

Air Temperature in June, °F

Select Year: 2026 2025 2024

The highest day temperature in June 2026 was 75°F. The lowest night temperature was 54°F. The average values for day and night temperatures during June were 68.4°F и 64.3°F respectivly.

Charlestown Water Sea Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Charlestown was 61.3°F. The maximum and minimum values were 55.2°F and 69.0°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in June, in

Precipitation total in June for Charlestown is 0.8 in. It makes june the least rainy month of the year.

Wind Speed in June, mph

The average wind speed in June is 9.9 mph. It makes June one of the most windless months of the year for Charlestown.

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 June is 8.8 hours.

Best Time to Visit Charlestown
The most sunny months:
November 17 days
October 14 days
December 13 days
The most warm months:
July 78.9 °F
August 77.8 °F
September 71.8 °F
Warmest sea temperature:
August 73.1 °F
July 71.6 °F
September 70.5 °F
The most cold months:
January 35.0 °F
February 35.5 °F
December 41.0 °F
The most rainy months:
October 4 days
November 3 days
January 2 days
The most windy months:
January 13 mph
December 13 mph
March 12 mph

Charlestown on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Charlestown
Local time: 20:26
05 oct, monday
2100 58°F
SE
17 mph
06 oct, tuesday
0000 54°F
SE
19 mph
0300 52°F
SE
16 mph
0600 48°F
SE
20 mph
0900 48°F
SE
17 mph
1200 56°F
SE
15 mph
1500 60°F
SE
16 mph
1800 58°F
SE
14 mph