Measurements:
°C
°F
Jamestown
56°F
SE 17 mph
Feels like: 52°F
Precip: 2%
World Resorts USA Jamestown Weather

Jamestown Sea Water Temperature

Current Sea Water Temperature:
+65.8°F
Maximum Sea Water Temperature in October: 72.2°F
Minimum Sea Water Temperature in October: 60.2°F
Average water temperature in October: 65.2°F

Sea Water Temperature for the Last 10 Days:

October 05 65.8°F September 30 65.6°F
October 04 66.2°F September 29 66.2°F
October 03 66.2°F September 28 66.6°F
October 02 66.6°F September 27 66.8°F
October 01 66.0°F September 26 67.0°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Jamestown was 74.5°F. The maximum and minimum values were 72.8°F and 78.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Jamestown was 73.5°F. The maximum and minimum values were 70.8°F and 77.4°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Jamestown was 70.7°F. The maximum and minimum values were 65.6°F and 73.2°F respectively.

Best Time to Visit Jamestown
The most sunny months:
November 17 days
October 14 days
December 13 days
The most warm months:
July 82.8 °F
August 81.4 °F
June 76.5 °F
Warmest sea temperature:
August 75.4 °F
July 74.7 °F
September 71.7 °F
The most cold months:
January 34.7 °F
February 35.7 °F
December 39.9 °F
The most rainy months:
October 3 days
March 3 days
September 3 days
The most windy months:
January 10 mph
December 10 mph
March 9 mph

Jamestown on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +60
Hawaii +82
Houston +84
Las Vegas +92
Los Angeles +102
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
Jamestown
Local time: 21:03
06 oct, tuesday
0000 52°F
SE
14 mph
0300 48°F
SE
13 mph
0600 44°F
SE
15 mph
0900 46°F
SE
14 mph
1200 56°F
SE
12 mph
1500 60°F
SE
14 mph
1800 56°F
SE
11 mph
2100 50°F
SE
10 mph