Measurements:
°C
°F
Westerly
58°F
NW 6 mph
Feels like: 56°F
Precip: 75%
World Resorts USA Westerly Weather

7 Day Weather Forecast

05.14
thu
DAY
58°F
NW 6 mph
precip
75%
NIGHT
52°F
N 2 mph
precip
0%
05.15
fri
DAY
56°F
SE 4 mph
precip
100%
NIGHT
50°F
S 4 mph
precip
80%
05.16
sat
DAY
60°F
NE 12 mph
precip
0%
NIGHT
56°F
NE 13 mph
precip
0%
05.17
sun
DAY
70°F
E 7 mph
precip
0%
NIGHT
62°F
E 4 mph
precip
0%
05.18
mon
DAY
66°F
NW 9 mph
precip
0%
NIGHT
54°F
N 4 mph
precip
0%
05.19
tue
DAY
70°F
NE 8 mph
precip
0%
NIGHT
62°F
NE 12 mph
precip
0%
05.20
wed
DAY
72°F
NE 12 mph
precip
0%
NIGHT
62°F
SE 7 mph
precip
0%

Westerly Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Westerly was 11.1°F. The maximum and minimum values were 8.4°F and 12.5°F respectively.

Westerly on the Weather Map

Best Time to Visit Westerly
The most sunny months:
November 17 days
December 14 days
October 14 days
The most warm months:
July 82.6 °F
August 81.0 °F
June 75.0 °F
Warmest sea temperature:
August 72.2 °F
July 70.7 °F
September 70.4 °F
The most cold months:
January 34.7 °F
February 35.9 °F
December 40.1 °F
The most rainy months:
October 4 days
November 3 days
July 3 days
The most windy months:
March 11 mph
January 10 mph
April 10 mph