Cà Mau climate

Name: Cà Mau
Address: VN

Cà Mau is warmest in April, with average highs of 33 °C, and coldest in January, when nights average 23 °C. October is the wettest month (412 mm) and February the driest (20 mm). Figures are 1991–2020 climate normals.

Across a full year Cà Mau averages 2,430 mm of rain and 364 days above 25 °C.

Vietnam · population 226,372 · 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 April 33 °C
Coldest month January 23 °C
Driest month February 20 mm
Wettest month October 412 mm
Least cloud March 54 % cloud
Hottest on record March 37 °C
Coldest on record December 16 °C

What to expectCà Mau through the year

Cà Mau 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, 364 days a year reach 25 °C, 242 of them reach 30 °C. The warmest reading in the 1991–2020 record is 37 °C, in March.

Rain is strongly seasonal. October averages 412 mm against 20 mm in February — 20 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	30.2 °C	34 mm	65 %
February	31.7 °C	20 mm	58 %
March	32.8 °C	60 mm	54 %
April	33.0 °C	121 mm	58 %
May	32.0 °C	257 mm	80 %
June	30.7 °C	290 mm	86 %
July	30.1 °C	303 mm	86 %
August	30.1 °C	287 mm	86 %
September	29.9 °C	336 mm	88 %
October	29.8 °C	412 mm	85 %
November	29.8 °C	207 mm	75 %
December	29.4 °C	103 mm	74 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	30.2 °C	22.5 °C	25.8 °C	34.4 °C	17.5 °C	31	18
February	31.7 °C	23.1 °C	26.6 °C	35.2 °C	19.3 °C	28	25
March	32.8 °C	24.1 °C	27.7 °C	37.3 °C	20.0 °C	31	30
April	33.0 °C	24.9 °C	28.3 °C	36.9 °C	21.7 °C	30	29
May	32.0 °C	25.2 °C	27.9 °C	37.2 °C	23.0 °C	31	28
June	30.7 °C	24.8 °C	27.1 °C	33.5 °C	22.9 °C	30	21
July	30.1 °C	24.5 °C	26.7 °C	32.7 °C	23.0 °C	31	18
August	30.1 °C	24.5 °C	26.7 °C	32.6 °C	22.7 °C	31	17
September	29.9 °C	24.2 °C	26.4 °C	32.8 °C	22.7 °C	30	15
October	29.8 °C	23.7 °C	26.0 °C	32.0 °C	20.6 °C	31	16
November	29.8 °C	23.4 °C	26.0 °C	31.8 °C	19.4 °C	30	14
December	29.4 °C	22.7 °C	25.6 °C	33.2 °C	16.0 °C	30	11

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	34 mm	6	12 h/day	65 %	76 %	17 km/h
February	20 mm	3	12 h/day	58 %	73 %	18 km/h
March	60 mm	8	12 h/day	54 %	73 %	17 km/h
April	121 mm	16	12 h/day	58 %	76 %	14 km/h
May	257 mm	27	13 h/day	80 %	82 %	14 km/h
June	290 mm	28	13 h/day	86 %	85 %	15 km/h
July	303 mm	30	13 h/day	86 %	86 %	16 km/h
August	287 mm	29	12 h/day	86 %	86 %	17 km/h
September	336 mm	29	12 h/day	88 %	87 %	16 km/h
October	412 mm	29	12 h/day	85 %	88 %	13 km/h
November	207 mm	22	12 h/day	75 %	85 %	14 km/h
December	103 mm	12	12 h/day	74 %	80 %	16 km/h

How Cà Mau 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
Cà Mau	33 °C	23 °C	2,430 mm	364
Bạc Liêu · Vietnam	32 °C	23 °C	1,999 mm	364
Vĩnh Châu · Vietnam	31 °C	24 °C	1,940 mm	364
Rạch Giá · Vietnam	33 °C	22 °C	1,978 mm	364
Sóc Trăng · Vietnam	32 °C	23 °C	1,932 mm	364
Cần Thơ · Vietnam	33 °C	22 °C	1,858 mm	364
Thốt Nốt · Vietnam	34 °C	22 °C	1,820 mm	364

Planning a trip? See the best time to visit Cà Mau.

QuestionsCommon questions about Cà Mau’s climate

When is the best time to visit Cà Mau?

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

How hot does Cà Mau get?

In April, the warmest month, daily highs average 33 °C. About 242 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 January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Cà Mau?

October, averaging 412 mm over 29 days with rain. The driest month is February with 20 mm. The year as a whole averages 2,430 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 Cà Mau 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
Data point: 9.177°, 105.152° (the coordinates the reanalysis values are taken for)
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.