World Resorts USA Jamestown Weather

Jamestown sea water temperature

Current sea water temperature:
+43.0°F
Minimum sea water temperature in April: 54.7°F
Maximum sea water temperature in April: 41.0°F
Average sea water temperature in April: 46.7°F

Sea water temperature for the last 10 days:

April 7 43.0°F April 2 42.1°F
April 6 42.4°F April 1 41.0°F
April 5 42.6°F March 31 41.5°F
April 4 41.9°F March 30 41.0°F
April 3 41.9°F March 29 40.8°F

When is the warmest sea in Jamestown?

Based on the data about daily sea water temperature for the last three years the warmest sea in Jamestown was noticed in August, July and September.

Monthly Sea Temperatures in Jamestown, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 70.7°F. The highest and lowest sea temperatures during the month were 74.1°F and 67.1°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 71.0°F. The highest and lowest sea temperatures during the month were 73.9°F and 67.3°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 68.7°F. The highest and lowest sea temperatures during the month were 70.0°F and 67.6°F.

Best time for vacation in Jamestown

Sunniest months:
November 17 days
September 14 days
October 14 days
Warmest months:
July 79.1 °F
August 77.9 °F
June 73.0 °F
Warmest sea temp:
August 73.0 °F
July 72.4 °F
September 69.7 °F
Coldest months:
January 36.2 °F
February 37.1 °F
December 40.9 °F
Rainiest months:
March 3 days
April 3 days
October 3 days
Windiest months:
January 10.0 mph
December 10.0 mph
March 9.9 mph

Jamestown on a weather map

Jamestown
+32°F
SE 16 mph
Feels like: +23°F
Precip.: 0%
Places in USA:
Name
°F
+43°F
+75°F
+75°F
+75°F
+63°F
+70°F
+73°F
+70°F
+34°F
+63°F
+55°F
+66°F
+64°F
+61°F
+39°F
24 Hours Forecast
Jamestown
Local time: 01:01
April 08, wednesday
0300
30°F
S
15 mph
0600
30°F
S
14 mph
0900
34°F
S
11 mph
1200
41°F
SW
5 mph
1500
45°F
NW
7 mph
1800
41°F
NW
9 mph
2100
37°F
NW
7 mph
April 09, thursday
0000
36°F
N
6 mph
Units of measurement: °C / °F