Waisai weather in January

In January, Waisai sees average daytime highs of 28°C and overnight lows near 25°C, with 246 mm of rain across 26.6 wet days and about 12 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 2% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of January to 12 hours by month's end. Set against the rest of the year, January is Waisai's 11th-clearest and 6th-windiest month. For the whole year in context, see Waisai's year-round climate.

Daytime high
28°
7th warmest
Overnight low
25°
6th coldest
Rainfall
246 mm
26.6 wet days
Daylight
12 hours
6:27 AM – 6:28 PM
Cloud cover
88%
11th clearest
Wind
9 km/h
6th windiest
Solar energy
5.38 kWh/m²
Travel score
3.6
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical January day in Waisai reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°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)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292825
302825
312825

How January really feels in Waisai

Once humidity and wind are folded in, January averages 3 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
3
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Waisai weather by month

How January compares with the rest of the year at a glance. January is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°24626.6123.6
Feb28° / 25°19323.3123.7
Mar28° / 25°25826.4123.5
Apr28° / 25°28627.6123.3
May28° / 26°27427.1123.5
Jun28° / 25°27925124.0
Jul27° / 25°23123.4124.3
Aug27° / 25°16919.2124.9
Sep28° / 25°18521.2124.5
Oct28° / 25°20022.8124.1
Nov28° / 25°22026.1123.5
Dec28° / 25°26628.6123.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 6% of January, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4991
5991
6991
7991
8991
9991
10991
11892
12892
13892
14892
15892
16793
17793
18793
19793
20793
21793
22793
23892
24892
25892
26892
27892
28892
29892
30892
31892

Chance of precipitation in January

Any precipitation

Waisai gets around 246 mm of rain over 26.6 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 86% and peaks near 89% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
289
389
488
588
688
788
888
987
1087
1187
1287
1387
1487
1587
1687
1786
1886
1986
2086
2185
2285
2385
2484
2584
2684
2784
2884
2984
3085
3185

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 65% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15149
25248
35347
45545
55644
65743
75842
85941
96040
106139
116238
126337
136436
146535
156634
166733
176733
186832
196931
206931
217030
227030
237129
247228
257228
267327
277327
287426
297426
307525
317525

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 hours at the start of January to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over January. Sunrise moves from 6:21 AM to 6:31 AM, and sunset from 6:22 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:216:22
212.06:216:22
312.06:226:22
412.06:226:23
512.06:236:23
612.06:236:24
712.06:236:24
812.06:246:25
912.06:246:25
1012.06:256:25
1112.06:256:26
1212.06:256:26
1312.06:266:27
1412.06:266:27
1512.06:276:27
1612.06:276:28
1712.06:276:28
1812.06:286:28
1912.06:286:29
2012.06:286:29
2112.06:296:29
2212.06:296:30
2312.06:296:30
2412.06:296:30
2512.06:306:30
2612.06:306:31
2712.06:306:31
2812.06:306:31
2912.06:316:31
3012.06:316:31
3112.06:316:32

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.38 kWh/m².

For context, solar energy here swings from a low near 4.82 kWh/m² to a high of 5.79 kWh/m² in October across the year — January's 5.38 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in January

Is January a good time to visit Waisai?

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

3.6
Sightseeing
7th-best month of the year
4.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Waisai.

What to pack for Waisai in January

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

In January, Waisai sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Waisai in January

The nearest coast averages about 29°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 19 km away) is warmest in May at about 29°C and coldest in February near 29°C.

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

28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Waisai in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Waisai peaks around March 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 16Jul 12UV 12
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep14Extreme
Oct15Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Waisai?

Waisai sits at 0.2°S, 130.5°E, 185 m above sea level, in Indonesia. The nearest listed city is Sorong, 110 km away.

SofifiTobeloDarubaFakfakTernateKawasi

Topography around Waisai

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

Within 3 km, the terrain around Waisai has significant variations in elevation — a maximum elevation change of 411 m around an average of 151 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 733 m; within 80 km, large variations in elevation — a maximum elevation change of 1,155 m.

The land around Waisai is covered by trees (75%) and water (23%) within 3 km, trees (66%) and water (32%) within 16 km, and water (81%) within 80 km.

3 km
411 m
16 km
733 m
80 km
1,155 m
treeswatermangroves
January weather nearby: Sorong 110 km · Teminabuan 214 km · Sofifi 345 km · Tobelo 353 km · Daruba 354 km · Fakfak 359 km · Ternate 366 km · Kawasi 376 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

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 Waisai (-0.2379°, 130.5072°, elevation 185 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. 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).