15.09
tue
tue
Day
81°F
SW 16 mph
Precip.
19%
19%
Night
79°F
SW 17 mph
Precip.
20%
20%
16.09
wed
wed
Day
81°F
SW 20 mph
Precip.
19%
19%
Night
79°F
SW 20 mph
Precip.
23%
23%
17.09
thu
thu
Day
81°F
SW 22 mph
Precip.
34%
34%
Night
77°F
SW 20 mph
Precip.
73%
73%
18.09
fri
fri
Day
81°F
SW 21 mph
Precip.
7%
7%
Night
79°F
SW 17 mph
Precip.
21%
21%
19.09
sat
sat
Day
79°F
W 17 mph
Precip.
22%
22%
Night
77°F
W 18 mph
Precip.
34%
34%
20.09
sun
sun
Day
79°F
SW 22 mph
Precip.
19%
19%
Night
77°F
SW 21 mph
Precip.
24%
24%
21.09
mon
mon
Day
79°F
SW 24 mph
Precip.
13%
13%
Night
77°F
SW 20 mph
Precip.
11%
11%
22.09
tue
tue
Day
79°F
SW 20 mph
Precip.
19%
19%
Night
79°F
SW 16 mph
Precip.
20%
20%
23.09
wed
wed
Day
81°F
SW 19 mph
Precip.
27%
27%
Night
79°F
SW 22 mph
Precip.
29%
29%
24.09
thu
thu
Day
79°F
SW 24 mph
Precip.
18%
18%
Night
79°F
SW 21 mph
Precip.
32%
32%
25.09
fri
fri
Day
79°F
SW 22 mph
Precip.
20%
20%
Night
79°F
SW 19 mph
Precip.
22%
22%
26.09
sat
sat
Day
79°F
SW 21 mph
Precip.
30%
30%
Night
77°F
SW 22 mph
Precip.
34%
34%
27.09
sun
sun
Day
79°F
SW 24 mph
Precip.
32%
32%
Night
77°F
SW 22 mph
Precip.
40%
40%
28.09
mon
mon
Day
79°F
SW 19 mph
Precip.
27%
27%
Night
77°F
SW 20 mph
Precip.
28%
28%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 80.8°F. The highest and lowest sea temperatures during the month were 81.1°F and 80.4°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: 06:01
September 15, tuesday
0900
79°F
SW
15 mph
15 mph
1200
81°F
SW
16 mph
16 mph
1500
81°F
SW
17 mph
17 mph
1800
79°F
SW
19 mph
19 mph
2100
79°F
SW
17 mph
17 mph
September 16, wednesday
0000
79°F
SW
17 mph
17 mph
0300
77°F
SW
19 mph
19 mph
0600
79°F
SW
19 mph
19 mph
