Measurements:
°C
°F
Saipan
82°F
NE 21 mph
Feels like: 90°F
Precip: 100%
World Resorts Northern Mariana Islands Saipan Weather

Saipan Sea Water Temperature

Current Sea Water Temperature:
+86.8°F
Maximum Sea Water Temperature in March: 87.0°F
Minimum Sea Water Temperature in March: 83.4°F
Average water temperature in March: 85.3°F

Sea Water Temperature for the Last 10 Days:

March 12 86.8°F March 07 86.4°F
March 11 86.6°F March 06 86.8°F
March 10 86.8°F March 05 86.8°F
March 09 86.8°F March 04 86.6°F
March 08 86.2°F March 03 86.6°F

When is the Warmest Sea for Saipan?

According to our data for the last three years for Saipan the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Saipan was 89.1°F. The maximum and minimum values were 87.8°F and 89.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Saipan was 89.1°F. The maximum and minimum values were 88.0°F and 89.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Saipan was 88.9°F. The maximum and minimum values were 87.6°F and 90.0°F respectively.

Best Time to Visit Saipan
The most sunny months:
July 5 days
September 4 days
August 4 days
The most warm months:
July 91.1 °F
August 91.0 °F
June 90.9 °F
Warmest sea temperature:
August 89.4 °F
September 89.4 °F
July 89.4 °F
The most cold months:
February 85.6 °F
January 86.5 °F
March 86.6 °F
The most rainy months:
October 14 days
August 13 days
September 13 days
The most windy months:
December 19 mph
February 19 mph
January 18 mph

Saipan on the Weather Map

Northern Mariana Islands Resorts:
NAME
Guam +80
Rota +82
Saipan +82
Susupe +82
Tinian +82
24 Hours Weather Forecast
Saipan
Local time: 15:19
13 mar, friday
1800 82°F
NE
24 mph
2100 84°F
NE
21 mph
14 mar, saturday
0000 84°F
NE
20 mph
0300 84°F
NE
21 mph
0600 84°F
NE
19 mph
0900 84°F
E
17 mph
1200 84°F
SE
19 mph
1500 84°F
SE
24 mph