Hoàng Mai weather in December

In December, Hoàng Mai sees average daytime highs of 22°C and overnight lows near 17°C, with 30 mm of rain across 5 wet days and about 10.9 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 18% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of December to 10 h 54 min by month's end. Set against the rest of the year, December is Hoàng Mai's 5th-clearest and 3rd-windiest month. For the whole year in context, see Hoàng Mai's year-round climate.

Daytime high
22°
10th warmest
Overnight low
17°
2nd coldest
Rainfall
30 mm
5 wet days
Daylight
10 h 48 min
6:28 AM – 5:19 PM
Cloud cover
71%
5th clearest
Wind
12 km/h
3rd windiest
Solar energy
2.75 kWh/m²
Travel score
7.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 21°C by the end.

A typical December day in Hoàng Mai reaches about 22°C in the afternoon and slips back to 17°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, December runs about 4°C cooler than November and about 1°C warmer than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12419
22419
32318
42318
52318
62318
72318
82318
92318
102218
112217
122217
132217
142217
152217
162217
172217
182217
192217
202217
212217
222217
232217
242217
252216
262116
272116
282116
292116
302116
312116

How December really feels in Hoàng Mai

Once humidity and wind are folded in, December 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

December 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 December compares with the rest of the year at a glance. December is the 10th-warmest and 10th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33565
43466
53466
63367
73268
83268
93268
103169
113268
123268
133268
143268
153367
163367
173466
183367
193466
203565
213565
223565
233466
243565
253565
263565
273565
283565
293367
303268
313169

Chance of precipitation in December

Any precipitation

Hoàng Mai gets around 30 mm of rain over 5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 17% and peaks near 24% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
124
223
322
421
520
620
719
818
918
1017
1116
1216
1315
1415
1514
1614
1714
1814
1914
2014
2114
2215
2315
2415
2515
2615
2715
2816
2916
3016
3117

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 27% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
114182525153
215182525143
316192525133
417192624122
518192623112
619192623112
720202622102
82220262191
92320262191
102420252091
112621242091
122721232091
132721232091
142921222090
153021211990
163121201990
173121201990
183221201990
193221201980
203221201980
213221202080
223321202070
233321202060
243221212160
253221212150
263121212250
273121212340
283021222440
292921222530
302921222630
312821222630

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 54 min at the start of December to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:19 AM to 6:35 AM, and sunset from 5:15 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:195:15
210.96:205:15
310.96:205:15
410.96:215:15
510.96:225:15
610.96:225:15
710.96:235:16
810.96:235:16
910.96:245:16
1010.96:255:17
1110.96:255:17
1210.96:265:17
1310.96:265:18
1410.96:275:18
1510.86:275:18
1610.86:285:19
1710.86:285:19
1810.86:295:19
1910.86:305:20
2010.86:305:20
2110.86:305:21
2210.86:315:21
2310.86:315:22
2410.86:325:22
2510.86:325:23
2610.86:335:23
2710.86:335:24
2810.86:345:24
2910.86:345:25
3010.96:345:25
3110.96:355:26

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.75 kWh/m².

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 — December's 2.75 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.7Moderate
102.7Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.8Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.7Moderate
312.7Moderate
Planning a trip in December

Hazard calendar for Hoàng Mai

In seasonPeak

In December, 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 December a good time to visit Hoàng Mai?

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

7.1
Sightseeing
2nd-best month of the year
5.1
Beach & pool
7th-best month of the year

December is one of the better times to visit Hoàng Mai for general sightseeing.

What to pack for Hoàng Mai in December

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

In December, Hoàng Mai sees daytime highs around 22°C and nights near 17°C. Worth packing: light clothes. About 5 days see rain.

light clothes

Sea temperature near Hoàng Mai in December

The nearest coast averages about 23°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — 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 December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December 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
December 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).