Kupang in Summer

In summer (December, January and February), Kupang sees average daytime highs around 30°C and overnight lows near 25°C, with 749 mm of rain over about 77 wet days across the season. It is the coldest season of the year and the wettest season of the year.

Over the season highs ease from about 32°C in early December to 30°C by late February. The sky is clear or mostly clear about 5% of the time across summer, and the air most often feels miserable.

Summer is Kupang's weakest season of the year to visit on our travel score. For the whole year in context, see Kupang's year-round climate.

Avg daytime high
30°C
coldest season of the year
Avg overnight low
25°C
Rainfall
749 mm
77 wet days
Avg wind
10 km/h
Travel score
2.9
weakest season of the year
Months
Dec · Jan · Feb

Temperature in Kupang in Summer

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 32°C in early December to 30°C by late February.

A typical summer day in Kupang reaches about 30°C and drops to 25°C overnight. The warmest of the three months is December, the coolest February.

20°25°30°35°40°DecJanFeb

How summer really feels in Kupang

Once humidity and wind are folded in, summer brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C
90
8 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Kupang weather by month

How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°27226.912.52.9
Feb30° / 25°24225.212.32.9
Mar31° / 25°19922.612.13.3
Apr32° / 25°7811.111.83.8
May32° / 25°233.711.54.5
Jun32° / 24°151.911.45.2
Jul31° / 23°4111.55.5
Aug32° / 23°20.511.75.2
Sep33° / 23°40.811.94.5
Oct34° / 25°183.512.23.6
Nov34° / 26°7310.512.53.0
Dec31° / 25°23624.512.62.8

Cloud cover in Summer

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time across summer.

0%25%50%75%100%DecJanFeb

Chance of precipitation in Summer

Any precipitation

Kupang gets around 749 mm of rain over 77 wet days across summer. The line is the day-by-day chance of measurable precipitation.

0%20%40%60%80%100%DecJanFeb

Humidity in Summer

DryComfortableHumidMuggyOppressiveMiserable

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

0%25%50%75%100%DecJanFeb

Wind in Summer

Winds average 10 km/h across summer.

051015DecJanFeb

Sunrise & sunset in Summer

DaylightNight

Daylight runs from about 12 h 36 min in early December to 12 h 12 min by late February. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMDecJanFeb

Solar energy in Summer

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across summer, about 5.4 kWh/m².

0246DecJanFeb
Planning a trip in summer

Hazard calendar for Kupang

In seasonPeak

In summer, Kupang overlaps its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

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

Kupang'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 summer a good time to visit Kupang?

Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

2.9
Sightseeing
4th-best month of the year
4.1
Beach & pool
4th-best month of the year

summer is a weaker month for outdoor sightseeing in Kupang.

What to pack for Kupang in Summer

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

In summer, Kupang sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 77 days see rain.

light clothesrain gearsun protection

Sea temperature near Kupang in Summer

The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun28Warm
Jul27Warm
Aug27Warm
Sep27Warm
Oct28Tropical
Nov29Tropical
Dec30Tropical

UV index in Kupang in Summer

LowModerateHighVery highExtreme

Clear-sky midday UV across summer averages 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 Kupang peaks around February 20 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 20UV 16Jun 20UV 9
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Kupang?

Kupang sits at 10.2°S, 123.6°E, 94 m above sea level, in Indonesia. The nearest listed city is Soe, 82 km away.

Topography around Kupang

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

Within 3 km, the terrain around Kupang has only modest variations in elevation — a maximum elevation change of 201 m around an average of 79 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 510 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,713 m.

The land around Kupang is covered by artificial surfaces (64%) within 3 km, water (43%), trees (27%) and grassland (23%) within 16 km, and water (63%) and trees (28%) within 80 km.

3 km
201 m
16 km
510 m
80 km
1,713 m
treesgrasslandcroplandartificial surfaceswater
Summer weather nearby: Soe 82 km · Kefamenanu 125 km · Atambua 184 km · Lewoleba 201 km · Suai 204 km · Maliana 220 km · Maumere 231 km · Atsabe 240 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 Kupang (-10.1708°, 123.6069°, elevation 94 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.