19.09
sat
sat
Day
64°F
W 11 mph
Precip.
3%
3%
Night
64°F
NW 11 mph
Precip.
16%
16%
20.09
sun
sun
Day
66°F
N 12 mph
Precip.
55%
55%
Night
64°F
S 11 mph
Precip.
55%
55%
21.09
mon
mon
Day
64°F
SW 14 mph
Precip.
8%
8%
Night
63°F
W 12 mph
Precip.
14%
14%
22.09
tue
tue
Day
61°F
SW 21 mph
Precip.
24%
24%
Night
54°F
SW 22 mph
Precip.
73%
73%
23.09
wed
wed
Day
59°F
SW 24 mph
Precip.
52%
52%
Night
59°F
SW 22 mph
Precip.
21%
21%
24.09
thu
thu
Day
57°F
S 23 mph
Precip.
23%
23%
Night
55°F
S 16 mph
Precip.
40%
40%
25.09
fri
fri
Day
54°F
S 17 mph
Precip.
48%
48%
Night
59°F
S 17 mph
Precip.
23%
23%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 73.4°F. The highest and lowest sea temperatures during the month were 74.3°F and 72.3°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 65.7°F. The highest and lowest sea temperatures during the month were 71.8°F and 60.3°F.
Air temperature in Norwalk, °F
Precipitation total in Norwalk, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Norwalk
Norwalk on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Norwalk
Local time: 05:17
September 19, saturday
0600
61°F
SW
13 mph
13 mph
0900
61°F
SW
13 mph
13 mph
1200
64°F
W
11 mph
11 mph
1500
64°F
W
9 mph
9 mph
1800
66°F
W
8 mph
8 mph
2100
64°F
NW
11 mph
11 mph
September 20, sunday
0000
64°F
NW
11 mph
11 mph
0300
63°F
NW
10 mph
10 mph
