Saipan weather by month

2006-2025, 20 years of records · Not a forecast

Saipan is warm all year, so the seasons are set by rain rather than temperature. The drier season runs from December to June and the rainier season from July to November, while typhoon season stretches from July to December. Showers pass through even in the drier months, so a light rain jacket is worth packing. Northeast trade winds blow from November to March and easterlies from May to October. If you travel in the rainy season, read the cancellation terms before you book, because a typhoon can ground flights for days. Temperatures barely change through the year, so short sleeves work in any month.

January to March gave the best mix of comfortable warmth and few rain days in Saipan. To dodge the rain, February (11 rain days) was the stretch to look at, not October (23).

Saipan's 12 months iBest: January to March

Typhoons: May and July to October

Each month in a line

JanuaryGood	hot, frequent rain	29° / 24°
FebruaryGood	properly hot	29° / 24°
MarchGood	hot	30° / 24°
April	properly hot	31° / 25°
May	very hot, frequent rain	31° / 26°
June	seriously hot, rain every other day	31° / 26°
July	very hot, rain almost daily	31° / 26°
August	properly hot	31° / 25°
September	hot	31° / 25°
October	hot, rain almost daily	30° / 25°
November	properly hot, rain on every second day	30° / 25°
December	hot, rain every other day	30° / 25°

The 12 months in numbers

Temperatures hardly moved: 31°C in June against 29°C in January.

Month	High	Low	Rain days	Rainfall	Humidity	Clear days	Sea
January	29°	24°	13 days	110mm	78%	7 days	28°
February	29°	24°	11 days	62mm	78%	7 days	28°
March	30°	24°	12 days	69mm	79%	11 days	28°
April	31°	25°	12 days	77mm	81%	12 days	29°
May	31°	26°	14 days	89mm	81%	11 days	29°
June	31°	26°	16 days	106mm	81%	7 days	30°
July	31°	26°	21 days	218mm	83%	2 days	30°
August	31°	25°	20 days	342mm	83%	1 day	30°
September	31°	25°	21 days	312mm	83%	1 day	30°
October	30°	25°	23 days	326mm	83%	3 days	30°
November	30°	25°	16 days	107mm	82%	12 days	30°
December	30°	25°	15 days	77mm	80%	13 days	29°

Enter your dates to see how that stretch went in each of the past 20 years.

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Common questions

When is the best time to visit Saipan?

January to March gave the best mix of comfortable warmth and few rain days in Saipan. To dodge the rain, February (11 rain days) was the stretch to look at, not October (23).

Which month is driest in Saipan?

February. Over 2006-2025 it averaged 11 rain days and 62 mm of rain.

Which month is warmest in Saipan?

June, with highs averaging 31°C and lows 26°C. Temperatures hardly moved: 31°C in June against 29°C in January.