Saipan weather in January

In January, Saipan sees average daytime highs of 27°C and overnight lows near 26°C, with 61 mm of rain across 13.3 wet days and about 11.2 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 48% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 06 min at the start of January to 11 h 18 min by month's end. Set against the rest of the year, January is Saipan's 5th-clearest and 2nd-windiest month. For the whole year in context, see Saipan's year-round climate.

Daytime high
27°
10th warmest
Overnight low
26°
3rd coldest
Rainfall
61 mm
13.3 wet days
Daylight
11 h 12 min
6:51 AM – 6:02 PM
Cloud cover
47%
5th clearest
Wind
29 km/h
2nd windiest
Solar energy
4.96 kWh/m²
Travel score
6.2
out of 10

Saipan is city.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical January day in Saipan reaches about 27°C in the afternoon and slips back to 26°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12726
22726
32726
42726
52726
62726
72726
82726
92726
102726
112726
122726
132726
142726
152726
162726
172726
182726
192726
202726
212726
222726
232726
242726
252726
262726
272726
282726
292726
302726
312726

How January really feels in Saipan

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Saipan weather by month

How January compares with the rest of the year at a glance. January is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°6113.311.26.2
Feb27° / 26°3911.311.56.5
Mar27° / 26°389.811.96.9
Apr27° / 26°5010.412.36.7
May28° / 27°6413.212.76.0
Jun28° / 27°10017.912.94.7
Jul28° / 27°2232712.83.5
Aug28° / 26°34028.212.53.3
Sep28° / 26°29826.612.13.4
Oct28° / 27°30425.611.73.8
Nov28° / 27°1331911.34.9
Dec28° / 26°6714.811.16.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 21% of January, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27327
37327
47228
57129
67030
76931
86832
96832
106634
116634
126436
136436
146436
156535
166535
176535
186634
196634
206733
216832
226931
236931
247030
257030
267129
277129
287129
297228
307228
317228

Chance of precipitation in January

Any precipitation

Saipan gets around 61 mm of rain over 13.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
144
245
345
446
547
647
748
848
948
1048
1148
1247
1347
1446
1545
1644
1743
1842
1941
2040
2139
2239
2338
2438
2538
2638
2739
2839
2940
3040
3140

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the oppressive band about 73% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1097516
2097615
30107614
40117613
50127612
60127711
70137611
80147610
90157510
10015769
11016759
12017758
13017758
14018748
15019747
16020737
17120736
18121726
19121735
20122725
21122725
22223714
23223714
24223714
25224713
26324703
27324703
28324703
29324703
30423703
31423703

Wind in January

Winds average 29 km/h in January.

Across January, daily wind ranges from about 29 km/h on the calmest days to 30 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
129breezy
229breezy
329windy
429windy
529windy
629windy
729windy
829windy
929windy
1029windy
1130windy
1230windy
1330windy
1430windy
1530windy
1630windy
1730windy
1830windy
1930windy
2030windy
2130windy
2229windy
2329windy
2429windy
2529windy
2629windy
2729windy
2829windy
2929windy
3029windy
3129windy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 06 min at the start of January to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:47 AM to 6:51 AM, and sunset from 5:54 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:475:54
211.16:475:54
311.16:475:55
411.16:485:55
511.16:485:56
611.16:485:56
711.16:495:57
811.16:495:57
911.16:495:58
1011.26:495:59
1111.26:505:59
1211.26:506:00
1311.26:506:00
1411.26:506:01
1511.26:506:01
1611.26:516:02
1711.26:516:02
1811.26:516:03
1911.26:516:04
2011.26:516:04
2111.26:516:05
2211.26:516:05
2311.26:516:06
2411.36:516:06
2511.36:516:07
2611.36:516:07
2711.36:516:08
2811.36:516:08
2911.36:516:09
3011.36:516:09
3111.36:516:10

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.96 kWh/m².

For context, solar energy here swings from a low near 4.72 kWh/m² to a high of 6.76 kWh/m² in May across the year — January's 4.96 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.1Bright
315.1Bright
Planning a trip in January

Hazard calendar for Saipan

In seasonPeak

In January, Saipan sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Saipan sits in the Pacific typhoon belt; the season peaks July–October.

Saipan's monsoon runs July–October, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Saipan?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.2
Sightseeing
4th-best month of the year
6.3
Beach & pool
5th-best month of the year

January is a reasonable time to visit Saipan for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Saipan in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Saipan sees daytime highs around 27°C and nights near 26°C. Pack a windbreaker. Worth having: light clothes, rain gear and sun protection. About 13 days see rain.

a windbreakerlight clothesrain gearsun protection

Sea temperature near Saipan in January

The nearest coast averages about 28°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in September at about 30°C and coldest in February near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb27Warm
Mar27Warm
Apr28Warm
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Saipan in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saipan peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 16UV 13Dec 18UV 9
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec8Very high
Location & terrain

Where is Saipan?

Saipan sits at 15.2°N, 145.8°E, 5 m above sea level, in Northern Mariana Islands. The nearest listed city is Yigo Village, 208 km away.

Topography around Saipan

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saipan.

Within 3 km, the terrain around Saipan has significant variations in elevation — a maximum elevation change of 454 m around an average of 123 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 454 m; within 80 km, significant variations in elevation — a maximum elevation change of 446 m.

The land around Saipan is covered by trees (74%) within 3 km, water (86%) within 16 km, and water (97%) within 80 km.

3 km
454 m
16 km
454 m
80 km
446 m
treesgrasslandartificial surfaceswater
January weather nearby: Yigo Village 208 km · Dededo Village 213 km · Tamuning-Tumon-Harmon Village 219 km · Tumon 219 km · Hagatna 221 km · Mangilao Village 221 km · Ngerulmud 1,485 km · Koror 1,509 km

Northern Mariana Islands travel facts

GDP per capita
$23,786
2022
Safe drinking water
81%
of population, 2024
Income group
High
World Bank

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Saipan (15.2123°, 145.7545°, elevation 5 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).