Cà Mau weather in January

In January, Cà Mau sees average daytime highs of 30°C and overnight lows near 23°C, with 33 mm of rain across 6 wet days and about 11.5 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 18% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 30 min at the start of January to 11 h 36 min by month's end. Set against the rest of the year, January is Cà Mau's 4th-clearest and 2nd-windiest month. For the whole year in context, see Cà Mau's year-round climate.

Daytime high
30°
10th warmest
Overnight low
23°
1st coldest
Rainfall
33 mm
6 wet days
Daylight
11 h 30 min
6:23 AM – 5:54 PM
Cloud cover
66%
4th clearest
Wind
12 km/h
2nd windiest
Solar energy
5 kWh/m²
Travel score
5.1
out of 10

Cà Mau is old provincial capital city of Ca Mau province, Vietnam.

Density
904/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 30°C through the month.

A typical January day in Cà Mau reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, January runs on par with December and about 1°C cooler than February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193123
203123
213123
223123
233123
243123
253123
263123
273123
283123
293123
303123
313123

How January really feels in Cà Mau

Once humidity and wind are folded in, January averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Cà Mau weather by month

How January compares with the rest of the year at a glance. January is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°33611.55.1
Feb32° / 24°193.411.74.8
Mar33° / 25°598.811.93.7
Apr33° / 26°11916.612.22.8
May33° / 26°25726.912.42.2
Jun31° / 25°28828.412.52.3
Jul31° / 25°30029.612.52.4
Aug31° / 25°28629.412.32.4
Sep31° / 25°33728.912.12.4
Oct31° / 25°4062911.82.6
Nov30° / 24°20922.211.63.3
Dec30° / 24°10112.711.54.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23268
33367
43367
53367
63664
73664
83664
93565
103565
113565
123664
133664
143664
153664
163763
173664
183664
193763
203862
213961
223961
234060
244060
254060
264159
274357
284357
294357
304357
314456

Chance of precipitation in January

Any precipitation

Cà Mau gets around 33 mm of rain over 6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 27% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
326
425
524
624
723
823
922
1022
1122
1222
1321
1421
1521
1620
1720
1820
1919
2019
2118
2217
2317
2416
2515
2614
2714
2813
2912
3012
3111

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1129664
2129673
3129673
4130663
5130663
6130663
7131653
8132643
9132643
10233632
11234622
12234622
13235612
14235612
15336601
16337591
17337591
18338581
19339571
20340561
21340561
22341560
23342550
24342550
25343540
26343540
27344530
28345520
29345520
30346510
31347500

Wind in January

Winds average 12 km/h in January.

Across January, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 30 min at the start of January to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over January. Sunrise moves from 6:18 AM to 6:25 AM, and sunset from 5:47 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:185:47
211.56:195:47
311.56:195:48
411.56:205:48
511.56:205:49
611.56:205:49
711.56:215:50
811.56:215:50
911.56:215:51
1011.56:225:51
1111.56:225:52
1211.56:225:52
1311.56:225:53
1411.56:235:53
1511.56:235:54
1611.56:235:54
1711.56:235:55
1811.56:245:55
1911.56:245:56
2011.56:245:56
2111.56:245:57
2211.56:245:57
2311.66:245:57
2411.66:245:58
2511.66:255:58
2611.66:255:59
2711.66:255:59
2811.66:255:59
2911.66:256:00
3011.66:256:00
3111.66:256:01

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5 kWh/m².

For context, solar energy here swings from a low near 4.27 kWh/m² to a high of 6.06 kWh/m² in March across the year — January's 5 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
134.9Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.2Bright
245.2Bright
255.2Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.4Bright
315.4Bright
Planning a trip in January

Hazard calendar for Cà Mau

In seasonPeak

In January, Cà Mau sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Cà Mau sits in the Pacific typhoon belt; the season peaks July–October.

Cà Mau's rainy season runs May–November, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Cà Mau?

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

5.1
Sightseeing
1st-best month of the year
7.2
Beach & pool
2nd-best month of the year

January is a reasonable time to visit Cà Mau for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cà Mau in January

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

In January, Cà Mau sees daytime highs around 30°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Cà Mau in January

The nearest coast averages about 27°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 38 km away) is warmest in May at about 31°C and coldest in January 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
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Cà Mau in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cà Mau peaks around March 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 21UV 13Dec 18UV 10
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct11Extreme
Nov10Extreme
Dec10Very high

Air quality in Cà Mau in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Cà Mau is worst in December — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (May, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateDec 1922 µg/m³May 2012 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb17Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun13Moderate
Jul15Moderate
Aug13Moderate
Sep14Moderate
Oct15Moderate
Nov18Moderate
Dec22Moderate
Location & terrain

Where is Cà Mau?

Cà Mau sits at 9.2°N, 105.2°E, 5 m above sea level, in Vietnam. The nearest listed city is Thới Bình, 21 km away.

Topography around Cà Mau

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

Within 3 km, the terrain around Cà Mau has only modest variations in elevation — a maximum elevation change of 13 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 13 m; within 80 km, only modest variations in elevation — a maximum elevation change of 111 m.

The land around Cà Mau is covered by artificial surfaces (40%) and trees (23%) within 3 km, water (37%), cropland (28%) and trees (23%) within 16 km, and water (59%) and cropland (24%) within 80 km.

3 km
13 m
16 km
13 m
80 km
111 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
January weather nearby: Thới Bình 21 km · Trần Văn Thời 22 km · Phong Thạnh 27 km · An Trạch 29 km · Ấp Hô Phòng 30 km · Gành Hào 34 km · Giá Rai 34 km · Hưng Mỹ 36 km

Vietnam travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / F
220 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,066
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
1.5
per 100k, 2011
Road deaths
30.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 500
Religion
none 86%Catholic 6%Buddhist 6%Protestant 1%

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 Cà Mau (9.1768°, 105.1524°, elevation 5 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).