Measurements:
°C
°F
Stamford
66°F
S 4 mph
Feels like: 66°F
Precip: 5%
World Resorts USA Stamford Weather May Weather in Stamford

Stamford Weather: May

Average Day Temperature: 66.9°F
Average Night Temperature: 55.4°F
Sea Water Temperature: 55.0°F
Number of Sunny Days: 12 days
Sunshine Hours: 14.0 - 14.9 hours
Number of Rainy Days: 2 days
Precipitation Totals: 0.9 in

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 98°F. The lowest night temperature was 43°F. The average values for day and night temperatures during May were 71.4°F и 54.5°F respectivly.

Stamford Water Sea Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Stamford was 53.9°F. The maximum and minimum values were 49.0°F and 58.0°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Stamford is 0.9 in. It makes may one of the least rainy months of the year.

Wind Speed in May, mph

The average wind speed in May is 8.6 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Stamford in May is 8.0 hours.

Best Time to Visit Stamford
The most sunny months:
November 15 days
September 14 days
August 13 days
The most warm months:
July 85.8 °F
August 83.2 °F
June 78.5 °F
Warmest sea temperature:
August 76.8 °F
July 75.3 °F
September 74.7 °F
The most cold months:
January 34.6 °F
February 35.7 °F
December 39.8 °F
The most rainy months:
July 3 days
August 3 days
September 3 days
The most windy months:
January 10 mph
December 10 mph
March 10 mph

Stamford on the Weather Map

USA Resorts:
NAME
Chicago +66
Hawaii +80
Honolulu +80
Houston +82
Las Vegas +96
Los Angeles +66
Maui +74
Miami +80
Miami Beach +88
Myrtle Beach +78
New York +70
San Diego +68
San Francisco +58
Sarasota +84
Tampa +84
24 Hours Weather Forecast
Stamford
Local time: 00:10
25 jun, thursday
0300 64°F
S
4 mph
0600 64°F
S
3 mph
0900 72°F
NW
2 mph
1200 78°F
NW
4 mph
1500 82°F
N
9 mph
1800 80°F
N
12 mph
2100 74°F
N
13 mph
26 jun, friday
0000 70°F
E
8 mph