Atambua weather in January

In January, Atambua sees average daytime highs of 28°C and overnight lows near 24°C, with 295 mm of rain across 28.1 wet days and about 12.5 hours of daylight. It is the 8th-warmest and 1st-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 3% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of January to 12 h 24 min by month's end. Set against the rest of the year, January is Atambua's 12th-clearest and 3rd-windiest month. For the whole year in context, see Atambua's year-round climate.

Daytime high
28°
8th warmest
Overnight low
24°
10th coldest
Rainfall
295 mm
28.1 wet days
Daylight
12 h 30 min
5:35 AM – 6:04 PM
Cloud cover
87%
12th clearest
Wind
6 km/h
3rd windiest
Solar energy
5.35 kWh/m²
Travel score
3.6
out of 10

Atambua is town in East Nusa Tenggara, Indonesia.

Density
1,465/km²
people per km²

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 28°C through the month.

A typical January day in Atambua reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

How January really feels in Atambua

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.

Atambua weather by month

How January compares with the rest of the year at a glance. January is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°29528.112.53.6
Feb27° / 24°26025.512.33.6
Mar28° / 24°2082312.14.3
Apr28° / 23°10214.311.85.2
May28° / 23°487.211.66.5
Jun28° / 22°273.911.57.4
Jul27° / 21°132.711.57.7
Aug27° / 21°71.211.78.0
Sep28° / 22°91.711.97.4
Oct29° / 23°183.912.26.4
Nov29° / 24°7010.512.45.2
Dec28° / 24°22624.612.53.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 7% of January, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
21090
31090
41090
51189
61189
71189
81189
91090
101090
111090
121189
131189
141189
151189
161090
171090
181090
191090
20991
21991
22991
23892
24892
25892
26892
27892
28892
29892
30892
31892

Chance of precipitation in January

Any precipitation

Atambua gets around 295 mm of rain over 28.1 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 91% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
188
288
389
489
589
689
789
889
989
1089
1189
1289
1389
1490
1590
1690
1790
1891
1991
2092
2192
2292
2393
2493
2593
2693
2794
2894
2994
3094
3194

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1973
2973
3973
4973
5973
6973
7973
8982
9982
10982
11982
12982
13982
14982
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in January

Winds average 6 km/h in January.

Across January, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 30 min at the start of January to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over January. Sunrise moves from 5:28 AM to 5:42 AM, and sunset from 5:59 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:285:59
212.55:286:00
312.55:296:00
412.55:296:00
512.55:306:01
612.55:306:01
712.55:316:01
812.55:316:02
912.55:326:02
1012.55:326:02
1112.55:336:03
1212.55:336:03
1312.55:346:03
1412.55:346:04
1512.55:356:04
1612.55:356:04
1712.55:366:04
1812.55:366:04
1912.55:376:05
2012.55:376:05
2112.55:386:05
2212.55:386:05
2312.45:396:05
2412.45:396:05
2512.45:396:05
2612.45:406:06
2712.45:406:06
2812.45:416:06
2912.45:416:06
3012.45:416:06
3112.45:426:06

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.35 kWh/m².

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 6.6 kWh/m² in October across the year — January's 5.35 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
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

Hazard calendar for Atambua

In seasonPeak

In January, Atambua sits inside its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

Atambua sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Atambua's monsoon runs December–March, when most of the year's rain falls.

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

Is January a good time to visit Atambua?

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

3.6
Sightseeing
11th-best month of the year
3.8
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Atambua.

What to pack for Atambua in January

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

In January, Atambua sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Atambua 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 26 km away) is warmest in December at about 30°C and coldest in August 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
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Tropical
Jul27Warm
Aug27Warm
Sep27Warm
Oct29Tropical
Nov29Tropical
Dec30Tropical

UV index in Atambua 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 Atambua peaks around February 22 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 22UV 16Jul 10UV 9
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul9Very high
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov14Extreme
Dec12Extreme
Location & terrain

Where is Atambua?

Atambua sits at 9.1°S, 124.9°E, 336 m above sea level, in Indonesia. The nearest listed city is Maliana, 38 km away.

Topography around Atambua

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

Within 3 km, the terrain around Atambua has significant variations in elevation — a maximum elevation change of 300 m around an average of 351 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 944 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,916 m.

The land around Atambua is covered by grassland (45%), trees (30%) and artificial surfaces (22%) within 3 km, trees (46%) and grassland (44%) within 16 km, and water (47%) and trees (34%) within 80 km.

3 km
300 m
16 km
944 m
80 km
2,916 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Maliana 38 km · Suai 46 km · Atsabe 59 km · Kefamenanu 59 km · Maubara 65 km · Gleno 73 km · Liquiçá 76 km · Aileu 85 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 Atambua (-9.1061°, 124.8925°, elevation 336 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).