Saipan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Saipan.
Climate overview of Saipan
With consistently stable weather, Saipan, Northern Mariana Islands, sees little seasonal temperature change. Daytime highs average 29°C (84°F), ranging from 30°C (86°F) in June to 28°C (82°F) in February.
The city has a wet climate, receiving around 1897 mm (75 in) of rainfall per year. Despite the high annual total, it has a distinct rainy season from July to October. August is the wettest month.
Saipan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saipan - and find the best time to visit.
Monthly Temperature in Saipan
The climate in Saipan remains fairly constant, offering comfortable temperatures throughout the year. On average, daytime temperatures range from a comfortable 30°C (86°F) in June to a comfortable 28°C (82°F) in February.
Nighttime temperatures range from 27°C (81°F) in June to 26°C (79°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Saipan
Saipan is known for its substantial rainfall, with annual precipitation reaching 1897 mm (75 in). The seasons in Saipan bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 352 mm (14 in) of precipitation. This rainfall is distributed across 21 rainy days.
In contrast, the driest month, March, experiences much less rainfall, totaling 50 mm (2 in) over 20 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Saipan Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Saipan
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April, May and December
- Warmest weather: April, May, June, July, August, September, October, November and December
- Wettest months: July, August, September and October, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from July to October
Frequently asked questions about the climate in Saipan
What is the best time to visit Saipan?
January, February, March, April, May and December typically offer the most optimal weather in Saipan. In contrast, July, August, September and October tend to have less optimal conditions. Saipan has a distinct rainy season from July to October.
What temperatures can I expect in Saipan?
Daytime highs range from 28°C (82°F) in February to 30°C (86°F) in June. Nighttime lows range from 26°C (79°F) to 27°C (81°F). Temperatures stay relatively stable year-round.
How much rain does Saipan get?
Annual rainfall is around 1897 mm (75 in). August is the wettest month with 352 mm (14 in), while March is the driest with 50 mm (2 in).
Saipan 3-Day Forecast
Saipan 3-Day Forecast
Saipan on the map
Saipan is highlighted - select any city to see its climate.
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