Kupang climate

Name: Kupang
Address: ID

Kupang is warmest in October, with average highs of 33 °C, and coldest in August, when nights average 23 °C. January is the wettest month (283 mm) and August the driest (2.0 mm). Figures are 1991–2020 climate normals.

Across a full year Kupang averages 1,181 mm of rain and 365 days above 25 °C.

Indonesia · population 474,801 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month October 33 °C
Coldest month August 23 °C
Driest month August 2 mm
Wettest month January 283 mm
Least cloud August 35 % cloud
Hottest on record November 37 °C
Coldest on record June 19 °C
Warmest sea December 30 °C

What to expectKupang through the year

Kupang changes little through the year. Average daily highs stay between 30 and 33 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 365 days a year reach 25 °C, 208 of them reach 30 °C. The warmest reading in the 1991–2020 record is 37 °C, in November.

Rain is strongly seasonal. January averages 283 mm against 2 mm in August — 142 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Kupang is warmest in December at 30 °C and coldest in August at 27 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	29.2 °C	283 mm	86 %
February	29.0 °C	249 mm	83 %
March	29.5 °C	194 mm	72 %
April	30.2 °C	76 mm	57 %
May	30.2 °C	24 mm	44 %
June	29.6 °C	15 mm	41 %
July	29.5 °C	4 mm	36 %
August	30.4 °C	2 mm	35 %
September	31.9 °C	5 mm	36 %
October	32.9 °C	20 mm	41 %
November	32.8 °C	78 mm	54 %
December	30.3 °C	231 mm	80 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	29.2 °C	24.7 °C	26.5 °C	34.0 °C	23.2 °C	31	7
February	29.0 °C	24.5 °C	26.3 °C	32.4 °C	22.3 °C	28	6
March	29.5 °C	24.5 °C	26.6 °C	32.5 °C	21.6 °C	31	11
April	30.2 °C	24.6 °C	26.9 °C	33.2 °C	21.7 °C	30	19
May	30.2 °C	24.3 °C	26.7 °C	32.4 °C	20.8 °C	31	19
June	29.6 °C	23.6 °C	26.0 °C	32.7 °C	18.8 °C	30	12
July	29.5 °C	22.8 °C	25.6 °C	32.4 °C	19.8 °C	31	9
August	30.4 °C	22.5 °C	25.9 °C	33.9 °C	19.8 °C	31	20
September	31.9 °C	23.0 °C	26.9 °C	34.9 °C	20.0 °C	30	29
October	32.9 °C	24.3 °C	28.0 °C	35.4 °C	20.7 °C	31	30
November	32.8 °C	25.3 °C	28.5 °C	36.5 °C	22.5 °C	30	28
December	30.3 °C	25.1 °C	27.2 °C	34.4 °C	23.3 °C	31	17

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	283 mm	27	13 h/day	86 %	87 %	16 km/h	29.4 °C
February	249 mm	25	12 h/day	83 %	88 %	16 km/h	29.2 °C
March	194 mm	22	12 h/day	72 %	86 %	14 km/h	29.2 °C
April	76 mm	11	12 h/day	57 %	81 %	15 km/h	29.1 °C
May	24 mm	4	12 h/day	44 %	74 %	20 km/h	28.4 °C
June	15 mm	2	12 h/day	41 %	70 %	22 km/h	27.6 °C
July	4 mm	1	12 h/day	36 %	68 %	22 km/h	26.9 °C
August	2 mm	1	12 h/day	35 %	66 %	21 km/h	26.6 °C
September	5 mm	1	12 h/day	36 %	68 %	18 km/h	27.1 °C
October	20 mm	4	12 h/day	41 %	70 %	16 km/h	28.1 °C
November	78 mm	11	13 h/day	54 %	74 %	13 km/h	29.3 °C
December	231 mm	24	13 h/day	80 %	84 %	14 km/h	29.7 °C

How Kupang compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Kupang	33 °C	23 °C	1,181 mm	365
Dili · Timor Leste	33 °C	22 °C	1,300 mm	365
Labuan Bajo · Indonesia	29 °C	23 °C	2,303 mm	365
Bima · Indonesia	33 °C	23 °C	1,941 mm	365

Where Kupang ranks

Ranking	Position	Value
The warmest places in Asia in November	4thof 50	33 °C
Best beach destinations in Asia in May	5thof 50	91/100
Warmest sea temperatures in Asia in January	6thof 50	29 °C
Warmest sea temperatures in Asia in December	7thof 50	30 °C
Warmest sea temperatures in the world in January	8thof 50	29 °C
Warmest sea temperatures in the world in December	9thof 50	30 °C

Planning a trip? See the best time to visit Kupang.

QuestionsCommon questions about Kupang’s climate

When is the best time to visit Kupang?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, August sit closest to 20 °C on average, October is the warmest month and August the driest. The month-by-month table above has the full picture.

How hot does Kupang get?

In October, the warmest month, daily highs average 33 °C. About 208 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °C.

How cold does it get in winter?

Nights average 23 °C in August, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Kupang?

January, averaging 283 mm over 27 days with rain. The driest month is August with 2 mm. The year as a whole averages 1,181 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Kupang rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.