Ô Môn weather in January

In January, Ô Môn sees average daytime highs of 30°C and overnight lows near 23°C, with 27 mm of rain across 4.4 wet days and about 11.5 hours of daylight. It is the 12th-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 21% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of January to 11 h 36 min by month's end. Set against the rest of the year, January is Ô Môn's 4th-clearest and 7th-windiest month. For the whole year in context, see Ô Môn's year-round climate.

Daytime high
30°
12th warmest
Overnight low
23°
1st coldest
Rainfall
27 mm
4.4 wet days
Daylight
11 h 30 min
6:23 AM – 5:51 PM
Cloud cover
64%
4th clearest
Wind
9 km/h
7th windiest
Solar energy
4.98 kWh/m²
Travel score
5.5
out of 10

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 Ô Môn reaches about 30°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°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
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303022
313022

How January really feels in Ô Môn

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.

Ô Môn weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°274.411.55.5
Feb31° / 23°132.311.75.0
Mar33° / 25°395.911.93.7
Apr34° / 26°8512.512.22.8
May33° / 26°20725.512.52.2
Jun31° / 25°24527.312.62.4
Jul31° / 25°25428.312.52.6
Aug31° / 25°24828.712.32.5
Sep31° / 25°2752812.12.4
Oct31° / 25°29327.611.82.5
Nov31° / 24°14217.711.53.5
Dec30° / 23°689.311.44.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 20% of January, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23763
33862
43961
53961
64060
74060
84159
94258
104060
114159
124159
134159
144159
154159
164159
174159
184159
194159
204258
214258
224357
234357
244456
254456
264456
274654
284654
294753
304753
314852

Chance of precipitation in January

Any precipitation

Ô Môn gets around 27 mm of rain over 4.4 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 15% and peaks near 21% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
121
220
319
418
517
616
715
815
914
1014
1114
1213
1313
1414
1514
1614
1714
1814
1915
2015
2115
2215
2315
2415
2514
2614
2713
2813
2912
3011
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 58% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1330625
2330625
3330634
4331624
5331624
6331624
7331633
8332623
9332623
10332623
11333613
12333613
13334612
14334612
15335602
16435592
17436582
18436582
19437581
20438571
21438571
22439561
23540541
24541531
25541531
26542521
27543511
28543511
29544501
30544501
31545501

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 24 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 12 minutes over January. Sunrise moves from 6:18 AM to 6:24 AM, and sunset from 5:43 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:185:43
211.46:185:44
311.46:195:44
411.46:195:45
511.46:205:45
611.46:205:46
711.46:205:46
811.46:215:47
911.46:215:47
1011.46:215:48
1111.46:225:48
1211.56:225:49
1311.56:225:49
1411.56:225:50
1511.56:235:50
1611.56:235:51
1711.56:235:51
1811.56:235:52
1911.56:235:52
2011.56:235:53
2111.56:245:53
2211.56:245:54
2311.56:245:54
2411.56:245:55
2511.56:245:55
2611.56:245:55
2711.56:245:56
2811.56:245:56
2911.56:245:57
3011.56:245:57
3111.66:245:57

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.98 kWh/m².

For context, solar energy here swings from a low near 4.17 kWh/m² to a high of 5.97 kWh/m² in March across the year — January's 4.98 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in January

Hazard calendar for Ô Môn

In seasonPeak

None of Ô Môn's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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

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

Is January a good time to visit Ô Môn?

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

5.5
Sightseeing
1st-best month of the year
7.5
Beach & pool
2nd-best month of the year

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

What to pack for Ô Môn in January

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

In January, Ô Môn sees daytime highs around 30°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Ô Môn in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ô Môn peaks around September 9 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highSep 9UV 13Dec 19UV 9
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct9Very high
Nov9Very high
Dec9Very high

Air quality in Ô Môn 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 Ô Môn is worst in December — around 57 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (August, 27 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorUnhealthyDec 1556 µg/m³Aug 1327 µg/m³
PM2.5 (µg/m³)Level
Jan51Poor
Feb40Poor
Mar38Poor
Apr39Poor
May37Poor
Jun32Moderate
Jul30Moderate
Aug27Moderate
Sep35Poor
Oct49Poor
Nov53Poor
Dec57Unhealthy
Location & terrain

Where is Ô Môn?

Ô Môn sits at 10.1°N, 105.6°E, 5 m above sea level, in Vietnam. The nearest listed city is Thới Lai, 9.0 km away.

Topography around Ô Môn

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

Within 3 km, the terrain around Ô Môn 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 18 m; within 80 km, significant variations in elevation — a maximum elevation change of 589 m.

The land around Ô Môn is covered by cropland (53%) and trees (30%) within 3 km, cropland (47%) and trees (37%) within 16 km, and cropland (63%) and trees (27%) within 80 km.

3 km
13 m
16 km
18 m
80 km
589 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Thới Lai 9.0 km · Bình Thủy 13 km · Phong Điền 13 km · Lai Vung 17 km · Cái Răng 18 km · Can Tho 20 km · Thốt Nốt 21 km · Cờ Đỏ 21 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 Ô Môn (10.1097°, 105.6232°, 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. 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).