19.09
sat
sat
Day
73°F
W 14 mph
Precip.
11%
11%
Night
70°F
W 11 mph
Precip.
22%
22%
20.09
sun
sun
Day
79°F
NW 13 mph
Precip.
12%
12%
Night
73°F
N 7 mph
Precip.
18%
18%
21.09
mon
mon
Day
70°F
SW 8 mph
Precip.
31%
31%
Night
68°F
W 14 mph
Precip.
31%
31%
22.09
tue
tue
Day
68°F
W 15 mph
Precip.
44%
44%
Night
63°F
W 25 mph
Precip.
56%
56%
23.09
wed
wed
Day
66°F
SW 24 mph
Precip.
44%
44%
Night
66°F
SW 18 mph
Precip.
63%
63%
24.09
thu
thu
Day
64°F
SW 15 mph
Precip.
40%
40%
Night
61°F
S 10 mph
Precip.
27%
27%
25.09
fri
fri
Day
63°F
S 11 mph
Precip.
22%
22%
Night
61°F
SW 7 mph
Precip.
19%
19%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 76.3°F. The highest and lowest sea temperatures during the month were 78.1°F and 73.8°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 72.0°F and 59.5°F.
Air temperature in Lewes, °F
Precipitation total in Lewes, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Lewes
Lewes on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Lewes
Local time: 06:09
September 19, saturday
0900
70°F
SW
14 mph
14 mph
1200
73°F
W
14 mph
14 mph
1500
73°F
W
13 mph
13 mph
1800
70°F
W
12 mph
12 mph
2100
70°F
W
11 mph
11 mph
September 20, sunday
0000
70°F
W
11 mph
11 mph
0300
70°F
NW
9 mph
9 mph
0600
70°F
NW
9 mph
9 mph
