20.09
sun
sun
Day
84°F
SW 4 mph
Precip.
19%
19%
Night
84°F
S 4 mph
Precip.
28%
28%
21.09
mon
mon
Day
84°F
W 6 mph
Precip.
18%
18%
Night
84°F
NW 9 mph
Precip.
64%
64%
22.09
tue
tue
Day
84°F
NW 16 mph
Precip.
45%
45%
Night
84°F
NW 17 mph
Precip.
70%
70%
23.09
wed
wed
Day
84°F
NW 17 mph
Precip.
77%
77%
Night
84°F
NW 12 mph
Precip.
24%
24%
24.09
thu
thu
Day
82°F
N 6 mph
Precip.
46%
46%
Night
82°F
NE 9 mph
Precip.
68%
68%
25.09
fri
fri
Day
82°F
SE 2 mph
Precip.
19%
19%
Night
82°F
NE 5 mph
Precip.
28%
28%
26.09
sat
sat
Day
84°F
S 10 mph
Precip.
18%
18%
Night
84°F
SW 13 mph
Precip.
16%
16%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 85.5°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.7°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 85.5°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.9°F.
Air temperature in Saipan, °F
Precipitation total in Saipan, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Saipan
Saipan on a weather map
Places in Northern Mariana Islands:
Name
°F
24 Hours Forecast
Saipan
Local time: 01:01
September 20, sunday
0300
84°F
S
1 mph
1 mph
0600
84°F
E
1 mph
1 mph
0900
84°F
E
1 mph
1 mph
1200
84°F
SW
4 mph
4 mph
1500
84°F
SW
2 mph
2 mph
1800
86°F
SW
3 mph
3 mph
2100
86°F
SW
4 mph
4 mph
September 21, monday
0000
84°F
S
4 mph
4 mph
