How extreme does Saipan's weather get?

The hottest, coldest, wettest and snowiest days Saipan has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 38 years of daily weather observations (1988–present), from the Saipan Intl Ap station 11 km away. Updated through September 2026 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Saipan has recorded — each shown against what a normal day that time of year looks like.

🌧️ Most rain in one day

21.06 in Oct 17, 2015

More rain in a single day than Saipan usually gets in the whole month of October (typical October total about 12.4 in).

The three most extreme on record

1 21.06 in Oct 17, 2015

2 10.00 in Aug 20, 2012

3 8.23 in Sep 25, 2014

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

normal range of daily temperatures

The shaded band is a normal day for the season in Saipan; the dots mark how far the all-time records sit beyond it.

In plain terms

In a normal year, Saipan's warmest days reach the high 80s°F and its coldest nights drop to the mid-70s°F. A single day has delivered over 21 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 15 years of daily observations at Saipan Intl AP, a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

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