World Resorts USA Stonington Weather

Stonington weather in August

Weather in Stonington: August

Average day temperature: 78.4°F
Average night temperature: 66.7°F
Sea water temperature: 70.1°F
Number of sunny days: 11 days
Day length: 13.1 - 14.4 hours
Number of rainy days: 2 days
Precipitation totals: 1.2 in.

Air temperature in August, °F

Show year:
2026
2025
2024

The highest day temperature during August of 2026 was 88°F. At the same time the lowest night temperature was 60°F. Daily and nightly averages during August were 80.5°F and 67.4°F.

Sea water temperature in Stonington in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 70.4°F. The highest and lowest sea temperatures during the month were 74.5°F and 68.5°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in August is almost equal.

Precipitation total in August, in.

Precipitation total value in Stonington in August is 1.2 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 7.5 mph It makes August one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 8.0.

Best time for vacation in Stonington

Sunniest months:
November 16 days
September 14 days
October 14 days
Warmest months:
July 79.9 °F
August 78.4 °F
June 74.0 °F
Warmest sea temp:
August 70.1 °F
July 68.5 °F
September 68.2 °F
Coldest months:
January 36.2 °F
February 37.3 °F
December 41.1 °F
Rainiest months:
October 4 days
July 3 days
November 3 days
Windiest months:
January 10.5 mph
December 10.3 mph
March 10.0 mph

Stonington on a weather map

Stonington
+68°F
NE 5 mph
Feels like: +68°F
Precip.: 12%
Places in USA:
Name
°F
+64°F
+68°F
+79°F
+72°F
+68°F
+82°F
+64°F
+70°F
+68°F
+61°F
+66°F
+73°F
+82°F
+68°F
24 Hours Forecast
Stonington
Local time: 05:42
September 17, thursday
0600
68°F
NE
5 mph
0900
70°F
NE
4 mph
1200
72°F
N
9 mph
1500
73°F
N
13 mph
1800
72°F
NE
13 mph
2100
70°F
NE
14 mph
September 18, friday
0000
70°F
NE
14 mph
0300
70°F
NE
14 mph
Units of measurement: °C / °F