14.09
mon
mon
Day
79°F
SW 16 mph
Precip.
4%
4%
Night
77°F
SW 13 mph
Precip.
24%
24%
15.09
tue
tue
Day
81°F
SW 16 mph
Precip.
23%
23%
Night
79°F
SW 17 mph
Precip.
22%
22%
16.09
wed
wed
Day
81°F
SW 19 mph
Precip.
21%
21%
Night
79°F
SW 20 mph
Precip.
27%
27%
17.09
thu
thu
Day
79°F
SW 21 mph
Precip.
25%
25%
Night
79°F
SW 14 mph
Precip.
53%
53%
18.09
fri
fri
Day
81°F
SW 14 mph
Precip.
46%
46%
Night
79°F
SW 13 mph
Precip.
16%
16%
19.09
sat
sat
Day
81°F
W 19 mph
Precip.
21%
21%
Night
77°F
SW 17 mph
Precip.
31%
31%
20.09
sun
sun
Day
79°F
SW 23 mph
Precip.
18%
18%
Night
77°F
W 21 mph
Precip.
20%
20%
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 80.5°F. The highest and lowest sea temperatures during the month were 81.1°F and 80.1°F.
Air temperature in Hawaii, °F
Precipitation total in Hawaii, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Hawaii
Hawaii on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Hawaii
Local time: 11:07
September 14, monday
1200
79°F
SW
16 mph
16 mph
1500
79°F
SW
13 mph
13 mph
1800
79°F
SW
13 mph
13 mph
2100
77°F
SW
12 mph
12 mph
September 15, tuesday
0000
77°F
SW
13 mph
13 mph
0300
77°F
SW
11 mph
11 mph
0600
77°F
SW
12 mph
12 mph
0900
79°F
SW
14 mph
14 mph
