Measurements:
°C
°F
Jamestown
86°F
NE 12 mph
Feels like: 86°F
Precip: 0%
World Resorts USA Jamestown Weather

Jamestown Sea Water Temperature

Current Sea Water Temperature:
+59.8°F
Maximum Sea Water Temperature in June: 73.4°F
Minimum Sea Water Temperature in June: 57.0°F
Average water temperature in June: 65.9°F

Sea Water Temperature for the Last 10 Days:

June 04 59.8°F May 29 61.0°F
June 03 58.2°F May 28 60.6°F
June 01 59.0°F May 27 58.4°F
May 31 59.0°F May 26 57.8°F
May 30 60.2°F May 25 56.8°F

When is the Warmest Sea for Jamestown?

According to our data for the last three years for Jamestown the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Jamestown was 73.0°F. The maximum and minimum values were 69.0°F and 76.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Jamestown was 73.3°F. The maximum and minimum values were 69.2°F and 76.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Jamestown was 70.7°F. The maximum and minimum values were 69.6°F and 72.2°F respectively.

Best Time to Visit Jamestown
The most sunny months:
November 17 days
September 14 days
October 14 days
The most warm months:
July 82.3 °F
August 81.0 °F
June 75.5 °F
Warmest sea temperature:
August 75.5 °F
July 74.8 °F
September 71.9 °F
The most cold months:
January 34.7 °F
February 35.7 °F
December 39.9 °F
The most rainy months:
March 3 days
October 3 days
November 2 days
The most windy months:
January 10 mph
December 10 mph
March 9 mph

Jamestown on the Weather Map

USA Resorts:
NAME
Boston +90
Chicago +76
Hawaii +78
Honolulu +78
Houston +86
Las Vegas +92
Los Angeles +70
Maui +70
Miami +82
Miami Beach +84
New York +94
San Diego +64
San Francisco +60
Sarasota +94
Tampa +92
24 Hours Weather Forecast
Jamestown
Local time: 12:54
04 jun, thursday
1500 84°F
NE
15 mph
1800 76°F
NE
12 mph
2100 64°F
NE
10 mph
05 jun, friday
0000 60°F
NE
9 mph
0300 58°F
NE
7 mph
0600 62°F
E
6 mph
0900 72°F
E
6 mph
1200 80°F
E
6 mph