Measurements:
°C
°F
New Haven
40°F
N 13 mph
Feels like: 32°F
Precip: 0%
World Resorts USA New Haven Weather

7 Day Weather Forecast

03.13
fri
DAY
38°F
NE 9 mph
precip
0%
NIGHT
36°F
NE 23 mph
precip
85%
03.14
sat
DAY
42°F
E 19 mph
precip
0%
NIGHT
32°F
SE 7 mph
precip
0%
03.15
sun
DAY
36°F
NW 7 mph
precip
0%
NIGHT
38°F
W 12 mph
precip
0%
03.16
mon
DAY
50°F
N 11 mph
precip
100%
NIGHT
50°F
N 33 mph
precip
100%
03.17
tue
DAY
36°F
E 17 mph
precip
0%
NIGHT
26°F
E 14 mph
precip
0%
03.18
wed
DAY
32°F
E 11 mph
precip
0%
NIGHT
32°F
N 11 mph
precip
0%
03.19
thu
DAY
38°F
N 10 mph
precip
0%
NIGHT
36°F
NE 6 mph
precip
0%

New Haven Sea Water Temperature in March, °F

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for New Haven was 3.9°F. The maximum and minimum values were 1.6°F and 5.9°F respectively.

New Haven on the Weather Map

Best Time to Visit New Haven
The most sunny months:
November 16 days
September 14 days
October 13 days
The most warm months:
July 84.0 °F
August 81.9 °F
June 76.4 °F
Warmest sea temperature:
August 77.0 °F
July 75.7 °F
September 73.8 °F
The most cold months:
January 34.2 °F
February 35.2 °F
December 39.4 °F
The most rainy months:
July 3 days
August 3 days
April 3 days
The most windy months:
January 10 mph
November 10 mph
December 10 mph