Northern Mariana Islands · 1991–2020

Best time to visit
Garapan.

March leads for comfortable weather in Garapan: typically 27.6°C by day, 22.8°C at night, with 76 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMarch

Typical high27.6°C

Typical low22.8°C

Rain in March76 mm

Comfort

March

March · February · January

61climate match

Beach

March

March · April · February

76climate match

Outdoors

March

March · February · January

38climate match

The weakest month is August, scoring 5 against March’s 61 — 362 mm of rain falls.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

5427.2° / 22.9°

Feb

5827.2° / 22.6°

Mar

6127.6° / 22.8°

Apr

5128.6° / 23.3°

May

4629.3° / 23.9°

Jun

3829.5° / 24.3°

Jul

2229.2° / 24°

Aug

528.9° / 23.9°

Sep

1428.9° / 23.7°

Oct

1428.9° / 23.8°

Nov

3028.8° / 23.8°

Dec

4327.9° / 23.4°

Monthly climate evidence for Garapan — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 14 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	27.2°C	22.9°C	117 mm	14.2	27.7°C	11 h 19	54	Good coverage
February	27.2°C	22.6°C	106 mm	12.2	27.3°C	11 h 37	58	Good coverage
March	27.6°C	22.8°C	76 mm	10.8	27.4°C	12 h 01	61	Good coverage
April	28.6°C	23.3°C	112 mm	12.5	27.9°C	12 h 27	51	Good coverage
May	29.3°C	23.9°C	113 mm	13.8	28.7°C	12 h 50	46	Good coverage
June	29.5°C	24.3°C	145 mm	15.5	29.3°C	13 h 01	38	Good coverage
July	29.2°C	24°C	239 mm	20.9	29.4°C	12 h 57	22	Good coverage
August	28.9°C	23.9°C	362 mm	21.7	29.4°C	12 h 38	5	Good coverage
September	28.9°C	23.7°C	312 mm	20.3	29.5°C	12 h 12	14	Good coverage
October	28.9°C	23.8°C	307 mm	20.3	29.2°C	11 h 46	14	Good coverage
November	28.8°C	23.8°C	216 mm	17.7	28.9°C	11 h 24	30	Good coverage
December	27.9°C	23.4°C	153 mm	16.6	28.3°C	11 h 14	43	Good coverage

Records at CAPITOL HILL 1, 1995–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	32.8°C17 Jan 2025	20.0°C27 Jan 1995	98 mm7 Jan 2018	274 mm2018 · driest 23 mm in 2004	28
February	31.7°C21 Feb 2026	17.8°C1 Feb 2023	105 mm8 Feb 2017	362 mm2021 · driest 12 mm in 1995	28
March	31.7°C19 Mar 2021	16.7°C22 Mar 1996	80 mm22 Mar 2008	506 mm2026 · driest 18 mm in 1995	30
April	32.8°C5 Apr 2024	17.2°C7 Apr 1996	161 mm15 Apr 2021	534 mm2021 · driest 25 mm in 2009	30
May	33.3°C31 May 2024	18.9°C16 May 1996	136 mm16 May 2017	406 mm2017 · driest 26 mm in 2010	29
June	33.3°C18 Jun 2025	21.1°C10 Jun 1999	89 mm16 Jun 2018	452 mm2004 · driest 21 mm in 1998	28
July	36.1°C20 Jul 2026	16.7°C31 Jul 2017	89 mm26 Jul 2025	523 mm2002 · driest 95 mm in 2026	29
August	32.2°C27 Aug 2025	19.4°C23 Aug 2012	152 mm4 Aug 2016	646 mm2016 · driest 173 mm in 2015	30
September	33.9°C30 Sep 2024	17.8°C19 Sep 2019	143 mm16 Sep 2019	630 mm2024 · driest 138 mm in 1997	29
October	31.7°C5 Oct 2020	19.4°C15 Oct 1997	178 mm3 Oct 2003	638 mm2024 · driest 146 mm in 2004	29
November	33.3°C21 Nov 2024	20.0°C1 Nov 2011	297 mm3 Nov 1997	461 mm2018 · driest 29 mm in 1995	26
December	33.3°C24 Dec 2024	20.0°C22 Dec 2011	170 mm3 Dec 2021	441 mm2021 · driest 54 mm in 2008	27

Typical days per month at CAPITOL HILL 1, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	29	<1	4
February	26	<1	3
March	30	<1	2
April	29	3	3
May	30	10	3
June	29	12	5
July	31	9	7
August	30	9	10
September	28	8	10
October	30	7	9
November	30	4	6
December	30	<1	4

How often, not how much — every day in CAPITOL HILL 1’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	53%	47%	12%	65%	26.5–28.2°C
February	56%	43%	11%	59%	26.1–28.3°C
March	59%	41%	9%	57%	26.7–29.0°C
April	58%	43%	11%	58%	27.5–29.5°C
May	56%	45%	9%	64%	28.3–30.3°C
June	48%	52%	16%	75%	28.9–30.6°C
July	31%	69%	24%	96%	28.5–30.3°C
August	30%	71%	33%	93%	28.3–29.9°C
September	31%	69%	33%	94%	28.2–29.9°C
October	33%	68%	30%	90%	28.2–29.7°C
November	39%	60%	19%	85%	28.1–30.4°C
December	44%	55%	14%	78%	27.1–29.0°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 13527050
NOAA station: CQC00914080 · CAPITOL HILL 1
Station distance: 3.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 15.21°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 14 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from CAPITOL HILL 1 is what differs

Saipan→Fananganan village→Chalan Laulau Village→China Town Village→Capitol Hill Village→I Liyang→

Or put two places side by side: Garapan vs Saipan

Best time to visitGarapan.

March

March

March

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Garapan.

The whole year,
without the guesswork.

Nearby, measured,
and named.