Measurements:
°C
°F
Jamestown
60°F
SE 11 mph
Feels like: 60°F
Precip: 18%
World Resorts USA Jamestown Weather

Jamestown Sea Water Temperature

Current Sea Water Temperature:
+59.4°F
Maximum Sea Water Temperature in October: 72.2°F
Minimum Sea Water Temperature in October: 59.4°F
Average water temperature in October: 65.0°F

Sea Water Temperature for the Last 10 Days:

October 26 59.4°F October 21 61.2°F
October 25 59.4°F October 20 61.8°F
October 24 59.6°F October 19 62.6°F
October 23 60.4°F October 18 62.6°F
October 22 61.0°F October 17 63.2°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 13 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:
March 3 days
October 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 +58
Hawaii +80
Houston +74
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +64
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +72
Washington +58
24 Hours Weather Forecast
Jamestown
Local time: 00:47
27 oct, tuesday
0300 54°F
S
16 mph
0600 48°F
S
12 mph
0900 48°F
S
11 mph
1200 54°F
SW
7 mph
1500 56°F
W
3 mph
1800 48°F
NW
7 mph
2100 48°F
NW
6 mph
28 oct, wednesday
0000 48°F
NW
6 mph