Shah Alam climate

Name: Shah Alam
Address: MY

Shah Alam is warmest in June, with average highs of 30 °C, and coldest in January, when nights average 22 °C. November is the wettest month (338 mm) and June the driest (110 mm). Figures are 1991–2020 climate normals.

Across a full year Shah Alam averages 2,272 mm of rain and 365 days above 25 °C.

Malaysia · population 740,750 · 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 June 30 °C
Coldest month January 22 °C
Driest month June 110 mm
Wettest month November 338 mm
Least cloud February 75 % cloud
Hottest on record March 35 °C
Coldest on record January 20 °C
Warmest sea May 30 °C

What to expectShah Alam through the year

Shah Alam changes little through the year. Average daily highs stay between 29 and 30 °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, 116 of them reach 30 °C. The warmest reading in the 1991–2020 record is 35 °C, in March.

Rain is strongly seasonal. November averages 338 mm against 110 mm in June — 3.1 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Shah Alam is warmest in May at 30 °C and coldest in January at 29 °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	28.9 °C	217 mm	80 %
February	29.6 °C	134 mm	75 %
March	29.9 °C	187 mm	77 %
April	29.8 °C	205 mm	83 %
May	29.9 °C	179 mm	84 %
June	30.0 °C	110 mm	79 %
July	30.0 °C	118 mm	79 %
August	30.0 °C	123 mm	81 %
September	29.8 °C	151 mm	83 %
October	29.4 °C	211 mm	88 %
November	28.6 °C	338 mm	91 %
December	28.5 °C	299 mm	89 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.9 °C	22.5 °C	25.4 °C	31.8 °C	19.8 °C	31	4
February	29.6 °C	22.6 °C	25.8 °C	33.9 °C	19.8 °C	28	9
March	29.9 °C	23.3 °C	26.2 °C	34.5 °C	20.1 °C	31	13
April	29.8 °C	23.7 °C	26.3 °C	33.7 °C	21.7 °C	30	11
May	29.9 °C	24.0 °C	26.6 °C	33.0 °C	22.0 °C	31	13
June	30.0 °C	23.9 °C	26.7 °C	33.4 °C	21.9 °C	30	15
July	30.0 °C	23.6 °C	26.6 °C	33.5 °C	21.5 °C	31	15
August	30.0 °C	23.6 °C	26.5 °C	33.5 °C	21.7 °C	31	15
September	29.8 °C	23.5 °C	26.3 °C	34.2 °C	21.2 °C	30	12
October	29.4 °C	23.4 °C	26.0 °C	34.0 °C	21.6 °C	31	9
November	28.6 °C	23.1 °C	25.4 °C	31.5 °C	21.5 °C	30	1
December	28.5 °C	22.8 °C	25.3 °C	31.2 °C	20.2 °C	31	1

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	217 mm	21	12 h/day	80 %	86 %	9.4 km/h	28.9 °C
February	134 mm	17	12 h/day	75 %	84 %	10 km/h	28.9 °C
March	187 mm	23	12 h/day	77 %	85 %	11 km/h	29.5 °C
April	205 mm	25	12 h/day	83 %	87 %	10 km/h	30.0 °C
May	179 mm	23	12 h/day	84 %	86 %	11 km/h	30.3 °C
June	110 mm	18	12 h/day	79 %	83 %	11 km/h	30.2 °C
July	118 mm	18	12 h/day	79 %	81 %	12 km/h	30.0 °C
August	123 mm	19	12 h/day	81 %	81 %	12 km/h	29.8 °C
September	151 mm	21	12 h/day	83 %	82 %	12 km/h	29.7 °C
October	211 mm	25	12 h/day	88 %	85 %	12 km/h	29.6 °C
November	338 mm	28	12 h/day	91 %	89 %	10 km/h	29.4 °C
December	299 mm	26	12 h/day	89 %	88 %	9.8 km/h	29.2 °C

How Shah Alam 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
Shah Alam	30 °C	22 °C	2,272 mm	365
Kampung Baru Subang · Malaysia	30 °C	23 °C	2,641 mm	365
Petaling Jaya · Malaysia	30 °C	22 °C	2,186 mm	365
Kota Damansara · Malaysia	30 °C	22 °C	2,541 mm	365
Bukit Jalil · Malaysia	30 °C	22 °C	2,960 mm	365
Kapar · Malaysia	30 °C	23 °C	2,584 mm	365
Kuala Lumpur · Malaysia	30 °C	22 °C	2,905 mm	365

Where Shah Alam ranks

Ranking	Position	Value
Warmest sea temperatures in Asia year-round	10thof 50	30 °C
Warmest sea temperatures in the world year-round	10thof 50	30 °C
Warmest sea temperatures in Asia in March	18thof 50	30 °C
Warmest sea temperatures in Asia in April	21stof 50	30 °C
Warmest sea temperatures in the world in April	21stof 50	30 °C
Warmest sea temperatures in the world in March	22ndof 50	30 °C

Planning a trip? See the best time to visit Shah Alam.

QuestionsCommon questions about Shah Alam’s climate

When is the best time to visit Shah Alam?

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

How hot does Shah Alam get?

In June, the warmest month, daily highs average 30 °C. About 116 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average 22 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Shah Alam?

November, averaging 338 mm over 28 days with rain. The driest month is June with 110 mm. The year as a whole averages 2,272 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 Shah Alam 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.