Measurements:
°C
°F
Norwalk
48°F
SE 4 mph
Feels like: 46°F
Precip: 0%
World Resorts USA Norwalk Weather

Norwalk Sea Water Temperature

Current Sea Water Temperature:
+38.2°F
Maximum Sea Water Temperature in January: 44.8°F
Minimum Sea Water Temperature in January: 33.4°F
Average water temperature in January: 39.4°F

Sea Water Temperature for the Last 10 Days:

January 08 38.2°F January 03 38.6°F
January 07 37.2°F January 02 38.4°F
January 06 37.0°F January 01 39.0°F
January 05 36.6°F December 31 39.4°F
January 04 37.4°F December 30 39.6°F

When is the Warmest Sea for Norwalk?

According to our data for the last three years for Norwalk the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Norwalk was 76.2°F. The maximum and minimum values were 73.2°F and 79.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Norwalk was 75.2°F. The maximum and minimum values were 71.0°F and 79.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Norwalk was 73.5°F. The maximum and minimum values were 72.0°F and 75.6°F respectively.

Best Time to Visit Norwalk
The most sunny months:
November 15 days
October 14 days
September 14 days
The most warm months:
July 85.6 °F
August 82.9 °F
June 78.3 °F
Warmest sea temperature:
August 76.9 °F
July 75.6 °F
September 74.6 °F
The most cold months:
January 34.9 °F
February 36.2 °F
December 39.7 °F
The most rainy months:
July 3 days
April 3 days
October 3 days
The most windy months:
January 10 mph
March 10 mph
December 10 mph

Norwalk on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
Norwalk
Local time: 15:30
08 jan, thursday
1800 46°F
SE
2 mph
2100 38°F
E
2 mph
09 jan, friday
0000 32°F
W
1 mph
0300 30°F
N
2 mph
0600 30°F
NE
3 mph
0900 32°F
N
5 mph
1200 34°F
N
9 mph
1500 36°F
N
11 mph