Ngã Năm weather in January

In January, Ngã Năm sees average daytime highs of 30°C and overnight lows near 23°C, with 26 mm of rain across 4.5 wet days and about 11.5 hours of daylight. It is the 11th-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 19% 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 Ngã Năm's 4th-clearest and 4th-windiest month. For the whole year in context, see Ngã Năm's year-round climate.

Daytime high
30°
11th warmest
Overnight low
23°
1st coldest
Rainfall
26 mm
4.5 wet days
Daylight
11 h 30 min
6:22 AM – 5:52 PM
Cloud cover
65%
4th clearest
Wind
11 km/h
4th windiest
Solar energy
4.9 kWh/m²
Travel score
5.3
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 Ngã Năm 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 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
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263123
273123
283123
293123
303123
313123

How January really feels in Ngã Năm

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.

Ngã Năm weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°264.511.55.3
Feb31° / 24°132.411.75.0
Mar33° / 25°456.511.93.9
Apr34° / 26°9113.812.22.9
May33° / 26°24126.712.42.1
Jun32° / 25°28027.912.52.3
Jul31° / 25°28729.712.52.4
Aug31° / 25°27929.312.32.4
Sep31° / 25°31728.912.12.4
Oct31° / 24°34328.211.82.6
Nov30° / 24°17419.911.63.5
Dec30° / 24°8810.911.54.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% 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 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33565
43664
53763
63862
73862
83961
93961
103862
113862
123961
133961
143862
153961
163961
173961
183961
194060
203961
214159
224159
234159
244159
254258
264258
274357
284456
294456
304456
314555

Chance of precipitation in January

Any precipitation

Ngã Năm gets around 26 mm of rain over 4.5 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 23% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
123
223
322
421
520
619
719
818
917
1017
1116
1216
1316
1415
1515
1615
1715
1814
1914
2014
2113
2213
2312
2412
2511
2611
2710
2810
299
309
319

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1133633
2133633
3134623
4134623
5135613
6135622
7135622
8136612
9236602
10237592
11238582
12238582
13339562
14339571
15340561
16341551
17341551
18342541
19443521
20444511
21445510
22446500
23446490
24547480
25547480
26548470
27549460
28549460
29550450
30550450
31550450

Wind in January

Winds average 11 km/h in January.

Across January, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 6:17 AM to 6:24 AM, and sunset from 5:44 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:175:44
211.56:185:45
311.56:185:45
411.56:185:46
511.56:195:46
611.56:195:47
711.56:195:47
811.56:205:48
911.56:205:48
1011.56:205:49
1111.56:215:49
1211.56:215:50
1311.56:215:50
1411.56:215:51
1511.56:225:51
1611.56:225:52
1711.56:225:52
1811.56:225:53
1911.56:235:53
2011.56:235:54
2111.56:235:54
2211.56:235:55
2311.56:235:55
2411.56:235:55
2511.56:235:56
2611.56:235:56
2711.66:235:57
2811.66:245:57
2911.66:245:58
3011.66:245:58
3111.66:245:58

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.9 kWh/m².

For context, solar energy here swings from a low near 4.11 kWh/m² to a high of 5.94 kWh/m² in March across the year — January's 4.9 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.1Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.3Bright
315.3Bright
Planning a trip in January

Hazard calendar for Ngã Năm

In seasonPeak

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

Ngã Năm sits in the Pacific typhoon belt; the season peaks July–October.

Ngã Năm'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 Ngã Năm?

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

5.3
Sightseeing
1st-best month of the year
7.4
Beach & pool
2nd-best month of the year

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

What to pack for Ngã Năm in January

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

In January, Ngã Năm sees daytime highs around 30°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Ngã Năm in January

The nearest coast averages about 26°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 49 km away) is warmest in May at about 30°C and coldest in January near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar28Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Ngã Năm 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 Ngã Năm peaks around March 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 22UV 13Jan 1UV 10
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct10Extreme
Nov10Very high
Dec10Very high

Air quality in Ngã Năm 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 Ngã Năm 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 Ngã Năm?

Ngã Năm sits at 9.6°N, 105.6°E, 1 m above sea level, in Vietnam. The nearest listed city is Long Mỹ, 13 km away.

Topography around Ngã Năm

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

Within 3 km, the terrain around Ngã Năm has only modest variations in elevation — a maximum elevation change of 10 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 12 m; within 80 km, only modest variations in elevation — a maximum elevation change of 21 m.

The land around Ngã Năm is covered by cropland (77%) within 3 km, cropland (80%) within 16 km, and cropland (46%) and water (31%) within 80 km.

3 km
10 m
16 km
12 m
80 km
21 m
treesgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: Long Mỹ 13 km · Phú Lộc 22 km · Vị Thanh 28 km · Ấp Một 32 km · Bạc Liêu 33 km · Ngã Bảy 37 km · Phong Thạnh 39 km · Giá Rai 40 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 Ngã Năm (9.5651°, 105.599°, elevation 1 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).