World Resorts USA Westerly Weather

Westerly sea water temperature

Current sea water temperature:
+39.6°F
Minimum sea water temperature in January: 47.5°F
Maximum sea water temperature in January: 38.8°F
Average sea water temperature in January: 43.4°F

Sea water temperature for the last 10 days:

January 12 39.6°F January 7 40.5°F
January 11 38.8°F January 6 40.5°F
January 10 40.1°F January 5 40.8°F
January 9 39.9°F January 4 41.0°F
January 8 40.5°F January 3 41.4°F

When is the warmest sea in Westerly?

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

Monthly Sea Temperatures in Westerly, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 69.3°F. The highest and lowest sea temperatures during the month were 71.6°F and 67.8°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 68.3°F. The highest and lowest sea temperatures during the month were 71.2°F and 64.6°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 68.2°F. The highest and lowest sea temperatures during the month were 69.8°F and 66.7°F.

Best time for vacation in Westerly

Sunniest months:
November 17 days
October 14 days
December 14 days
Warmest months:
July 79.4 °F
August 77.9 °F
June 72.5 °F
Warmest sea temp:
August 70.0 °F
July 68.6 °F
September 68.3 °F
Coldest months:
January 36.9 °F
February 38.0 °F
December 41.1 °F
Rainiest months:
October 4 days
July 3 days
November 3 days
Windiest months:
March 10.9 mph
April 10.5 mph
December 10.3 mph

Westerly on a weather map

Westerly
+32°F
E 17 mph
Feels like: +21°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+73°F
+73°F
+39°F
+52°F
+68°F
+72°F
+66°F
+32°F
+52°F
+45°F
+52°F
+50°F
+45°F
+27°F
24 Hours Forecast
Westerly
Local time: 09:05
January 12, monday
1200
36°F
E
16 mph
1500
39°F
E
16 mph
1800
39°F
NE
14 mph
2100
37°F
NE
16 mph
January 13, tuesday
0000
36°F
E
14 mph
0300
36°F
E
12 mph
0600
34°F
E
11 mph
0900
37°F
E
11 mph
Units of measurement: °C / °F