Hoàng Mai weather in January

In January, Hoàng Mai sees average daytime highs of 21°C and overnight lows near 16°C, with 23 mm of rain across 4.9 wet days and about 11 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 12% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of January to 11 h 06 min by month's end. Set against the rest of the year, January is Hoàng Mai's 9th-clearest and 5th-windiest month. For the whole year in context, see Hoàng Mai's year-round climate.

Daytime high
21°
12th warmest
Overnight low
16°
1st coldest
Rainfall
23 mm
4.9 wet days
Daylight
11 hours
6:38 AM – 5:35 PM
Cloud cover
78%
9th clearest
Wind
12 km/h
5th windiest
Solar energy
2.67 kWh/m²
Travel score
6.8
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical January day in Hoàng Mai reaches about 21°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°C. Set against its neighbours, January runs about 1°C cooler than December and about 1°C cooler than February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12116
22116
32116
42116
52116
62116
72116
82116
92116
102116
112116
122116
132116
142116
152116
162116
172116
182116
192116
202116
212116
222116
232116
242016
252016
262116
272116
282116
292116
302116
312116

How January really feels in Hoàng Mai

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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Hoàng Mai 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
Jan21° / 16°234.9116.8
Feb22° / 17°153.911.37.1
Mar25° / 20°315.711.97.2
Apr29° / 23°47712.45.5
May33° / 26°11512.112.93.3
Jun35° / 28°12411.613.12.2
Jul35° / 28°17213.1132.4
Aug33° / 27°26320.112.72.6
Sep31° / 26°29319.412.13.4
Oct29° / 23°21916.311.65.0
Nov26° / 20°63911.16.7
Dec22° / 17°30510.97.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
22971
32971
42971
52773
62773
72674
82575
92575
102476
112377
122377
132377
142278
152278
162278
172278
182278
192080
202080
212080
222080
232080
242080
252080
262179
272179
282377
292377
302377
312476

Chance of precipitation in January

Any precipitation

Hoàng Mai gets around 23 mm of rain over 4.9 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 17% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
217
317
417
517
617
716
816
916
1016
1115
1215
1315
1414
1514
1614
1714
1814
1914
2014
2114
2215
2315
2415
2515
2616
2716
2816
2915
3015
3115

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 30% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1282121273
2282021273
3282021284
4282020284
5282020284
6281920285
7291920285
8291820285
9291820285
10291820275
11301721275
12301721275
13311622265
14311622265
15321622255
16331522255
17331523254
18341523244
19341523244
20351423244
21361423243
22361423243
23361423243
24361422243
25371422243
26371422244
27371421244
28361421244
29361521244
30351521245
31341621245

Wind in January

Winds average 12 km/h in January.

Across January, daily wind ranges from about 12 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
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 54 min at the start of January to 11 h 06 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 6:35 AM to 6:37 AM, and sunset from 5:26 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:355:26
210.96:355:27
310.96:355:27
410.96:365:28
510.96:365:28
610.96:365:29
710.96:365:30
810.96:375:30
910.96:375:31
1010.96:375:31
1110.96:375:32
1210.96:375:33
1310.96:375:33
1410.96:385:34
1510.96:385:34
1611.06:385:35
1711.06:385:36
1811.06:385:36
1911.06:385:37
2011.06:385:38
2111.06:385:38
2211.06:385:39
2311.06:385:39
2411.06:385:40
2511.06:385:41
2611.16:385:41
2711.16:375:42
2811.16:375:42
2911.16:375:43
3011.16:375:44
3111.16:375:44

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.67 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.67 kWh/m² to a high of 5.72 kWh/m² in May across the year — January's 2.67 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.7Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.9Moderate
312.9Moderate
Planning a trip in January

Hazard calendar for Hoàng Mai

In seasonPeak

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

Hoàng Mai sits in the Pacific typhoon belt; the season peaks July–October.

Hoàng Mai's monsoon runs July–October, when most of the year's rain falls.

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

Is January a good time to visit Hoàng Mai?

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

6.8
Sightseeing
4th-best month of the year
4.1
Beach & pool
12th-best month of the year

January is a reasonable time to visit Hoàng Mai for sightseeing.

What to pack for Hoàng Mai in January

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

In January, Hoàng Mai sees daytime highs around 21°C and nights near 16°C. Little to plan around — just the basics. About 5 days see rain.

Sea temperature near Hoàng Mai in January

The nearest coast averages about 21°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 21 km away) is warmest in August at about 30°C and coldest in February near 21°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar22Refreshing
Apr24Warm
May28Warm
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct28Warm
Nov26Warm
Dec23Refreshing

UV index in Hoàng Mai in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hoàng Mai peaks around August 11 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighAug 11UV 12Dec 15UV 6
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar10Very high
Apr9Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep10Extreme
Oct9Very high
Nov7High
Dec6High

Air quality in Hoàng Mai 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 Hoàng Mai is worst in April — around 65 µg/m³ PM2.5 (unhealthy), about 3.3× the cleanest month (July, 20 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyApr 1065 µg/m³Jul 1920 µg/m³
PM2.5 (µg/m³)Level
Jan65Unhealthy
Feb63Unhealthy
Mar63Unhealthy
Apr65Unhealthy
May43Poor
Jun25Moderate
Jul20Moderate
Aug23Moderate
Sep33Moderate
Oct46Poor
Nov55Poor
Dec64Unhealthy
Location & terrain

Where is Hoàng Mai?

Hoàng Mai sits at 19.3°N, 105.7°E, 6 m above sea level, in Vietnam. The nearest listed city is Nghi Sơn, 13 km away.

Topography around Hoàng Mai

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

Within 3 km, the terrain around Hoàng Mai has only modest variations in elevation — a maximum elevation change of 211 m around an average of 16 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 420 m; within 80 km, large variations in elevation — a maximum elevation change of 1,079 m.

The land around Hoàng Mai is covered by trees (41%) and cropland (25%) within 3 km, trees (42%) and water (31%) within 16 km, and trees (46%) and water (33%) within 80 km.

3 km
211 m
16 km
420 m
80 km
1,079 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Nghi Sơn 13 km · Diễn Thành 35 km · Sầm Sơn 55 km · Thanh Hóa 59 km · Kim Liên 60 km · Vinh 66 km · Yên Vinh 67 km · Nghi Xuân 68 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 Hoàng Mai (19.2676°, 105.7159°, elevation 6 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).