Measurements:
°C
°F
Norwalk
62°F
SW 9 mph
Feels like: 62°F
Precip: 5%
World Resorts USA Norwalk Weather

Norwalk Sea Water Temperature

Current Sea Water Temperature:
+76.0°F
Maximum Sea Water Temperature in September: 81.0°F
Minimum Sea Water Temperature in September: 68.6°F
Average water temperature in September: 74.7°F

Sea Water Temperature for the Last 10 Days:

September 15 76.0°F September 10 76.0°F
September 14 75.4°F September 09 76.0°F
September 13 76.0°F September 08 76.4°F
September 12 76.2°F September 07 76.6°F
September 11 76.8°F September 06 76.8°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Norwalk was 77.4°F. The maximum and minimum values were 75.8°F and 80.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Norwalk was 73.5°F. The maximum and minimum values were 70.8°F and 76.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Norwalk was 76.1°F. The maximum and minimum values were 75.4°F and 77.0°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 86.2 °F
August 83.4 °F
June 79.5 °F
Warmest sea temperature:
August 76.9 °F
July 75.3 °F
September 74.6 °F
The most cold months:
January 34.3 °F
February 35.6 °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
December 10 mph
November 10 mph

Norwalk on the Weather Map

USA Resorts:
NAME
Boston +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +70
Sarasota +86
Washington +66
24 Hours Weather Forecast
Norwalk
Local time: 10:31
15 sep, tuesday
1200 64°F
W
7 mph
1500 66°F
W
5 mph
1800 68°F
W
6 mph
2100 68°F
N
9 mph
16 sep, wednesday
0000 68°F
N
9 mph
0300 66°F
NE
7 mph
0600 66°F
E
7 mph
0900 68°F
NE
6 mph