World Resorts USA Jamestown Weather

Jamestown sea water temperature

Current sea water temperature:
+38.3°F
Minimum sea water temperature in January: 46.6°F
Maximum sea water temperature in January: 37.2°F
Average sea water temperature in January: 41.9°F

Sea water temperature for the last 10 days:

January 13 38.3°F January 8 39.4°F
January 12 37.6°F January 7 39.4°F
January 11 38.3°F January 6 39.4°F
January 10 37.2°F January 5 39.6°F
January 9 38.1°F January 4 39.7°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
October 14 days
September 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 36.8 °F
February 37.9 °F
December 40.9 °F
Rainiest months:
March 3 days
October 3 days
January 3 days
Windiest months:
December 10.0 mph
January 9.8 mph
March 9.7 mph

Jamestown on a weather map

Jamestown
+45°F
NE 12 mph
Feels like: +39°F
Precip.: 0%
Places in USA:
Name
°F
+48°F
+70°F
+70°F
+48°F
+57°F
+72°F
+72°F
+66°F
+43°F
+57°F
+46°F
+61°F
+61°F
+61°F
+45°F
24 Hours Forecast
Jamestown
Local time: 13:08
January 13, tuesday
1500
45°F
NE
14 mph
1800
43°F
NE
14 mph
2100
41°F
NE
14 mph
January 14, wednesday
0000
43°F
NE
20 mph
0300
43°F
NE
18 mph
0600
43°F
NE
16 mph
0900
43°F
NE
14 mph
1200
43°F
NE
14 mph
Units of measurement: °C / °F