Ðông Hà weather in December

In December, Ðông Hà sees average daytime highs of 23°C and overnight lows near 19°C, with 293 mm of rain across 22.3 wet days and about 11 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 7% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 h 06 min at the start of December to 11 hours by month's end. Set against the rest of the year, December is Ðông Hà's 11th-clearest and 4th-windiest month. For the whole year in context, see Ðông Hà's year-round climate.

Daytime high
23°
11th warmest
Overnight low
19°
3rd coldest
Rainfall
293 mm
22.3 wet days
Daylight
11 hours
6:18 AM – 5:18 PM
Cloud cover
83%
11th clearest
Wind
10 km/h
4th windiest
Solar energy
2.33 kWh/m²
Travel score
4.7
out of 10

Ðông Hà is provincial city in Vietnam.

Density
2,251/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical December day in Ðông Hà reaches about 23°C in the afternoon and slips back to 19°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12520
22520
32420
42420
52420
62420
72420
82419
92419
102419
112319
122319
132319
142319
152319
162319
172319
182319
192318
202318
212318
222318
232318
242318
252318
262318
272318
282318
292318
302318
312318

How December really feels in Ðông Hà

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.

Ðông Hà weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 18°13518.211.15.3
Feb25° / 19°8413.511.45.9
Mar27° / 21°8813.611.95.7
Apr30° / 23°8914.212.44.3
May33° / 25°13418.612.82.9
Jun34° / 26°7110.8132.7
Jul34° / 26°9912.312.92.8
Aug33° / 26°12814.812.63.0
Sep31° / 25°29820.312.13.2
Oct28° / 23°44924.211.64.0
Nov26° / 21°40022.411.24.6
Dec23° / 19°29322.3114.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 82%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22179
32080
42080
51981
61981
71783
81684
91684
101585
111585
121585
131486
141486
151585
161585
171684
181684
191783
201783
211783
221783
231882
241981
251981
262080
272080
282179
292179
302179
312080

Chance of precipitation in December

Any precipitation

Ðông Hà gets around 293 mm of rain over 22.3 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 71% and peaks near 76% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
176
276
376
475
575
675
775
875
975
1075
1175
1275
1374
1473
1573
1672
1771
1871
1971
2070
2170
2269
2369
2468
2567
2667
2766
2866
2965
3065
3165

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1141736412
2141837392
3141838372
4141939351
5152040341
6152041321
7152141311
8152242291
9162242281
10162342271
11172342260
12282442250
13282441240
14292540240
152102539230
163102539230
173112638230
183112638220
193122637210
204122737200
214122737190
224132737180
234132838170
244132839160
254132839150
264132840140
274132841140
284122842130
294122843130
304122844130
313122745130

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 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
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 06 min at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:09 AM to 6:24 AM, and sunset from 5:13 PM to 5:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:095:13
211.16:105:14
311.16:105:14
411.06:115:14
511.06:125:14
611.06:125:14
711.06:135:15
811.06:135:15
911.06:145:15
1011.06:145:16
1111.06:155:16
1211.06:165:16
1311.06:165:17
1411.06:175:17
1511.06:175:17
1611.06:185:18
1711.06:185:18
1811.06:195:19
1911.06:195:19
2011.06:205:20
2111.06:205:20
2211.06:215:20
2311.06:215:21
2411.06:225:21
2511.06:225:22
2611.06:225:22
2711.06:235:23
2811.06:235:23
2911.06:245:24
3011.06:245:25
3111.06:245:25

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.33 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.79 kWh/m² in June across the year — December's 2.33 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.3Moderate
92.3Moderate
102.3Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.2Moderate
152.2Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.7Moderate
Planning a trip in December

Hazard calendar for Ðông Hà

In seasonPeak

In December, Ðông Hà sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Ðông Hà sits in the Pacific typhoon belt; the season peaks July–October.

Ðông Hà's monsoon runs September–December, 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 Ðông Hà?

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

4.7
Sightseeing
4th-best month of the year
3.8
Beach & pool
12th-best month of the year

December is a reasonable time to visit Ðông Hà for sightseeing.

What to pack for Ðông Hà in December

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

In December, Ðông Hà sees daytime highs around 23°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 22 days see rain.

rain gearlight clothes

Sea temperature near Ðông Hà in December

The nearest coast averages about 24°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 30 km away) is warmest in August at about 29°C and coldest in February near 22°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb22Refreshing
Mar23Refreshing
Apr25Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov26Warm
Dec24Warm

UV index in Ðông Hà 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 Ðông Hà peaks around August 13 at about 13 (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 13UV 13Dec 15UV 6
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar9Very high
Apr10Very high
May11Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec6High

Air quality in Ðông Hà 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 Ðông Hà is worst in March — around 76 µg/m³ PM2.5 (unhealthy), about 5.1× the cleanest month (July, 15 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateMar 2274 µg/m³Jul 1915 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb27Moderate
Mar76Unhealthy
Apr66Unhealthy
May26Moderate
Jun17Moderate
Jul15Moderate
Aug16Moderate
Sep19Moderate
Oct21Moderate
Nov18Moderate
Dec21Moderate
Location & terrain

Where is Ðông Hà?

Ðông Hà sits at 16.8°N, 107.1°E, 21 m above sea level, in Vietnam. The nearest listed city is Cam Lộ, 11 km away.

Topography around Ðông Hà

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

Within 3 km, the terrain around Ðông Hà has only modest variations in elevation — a maximum elevation change of 44 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 204 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,059 m.

The land around Ðông Hà is covered by artificial surfaces (38%), cropland (24%) and trees (21%) within 3 km, trees (52%) and cropland (22%) within 16 km, and trees (60%) and water (29%) within 80 km.

3 km
44 m
16 km
204 m
80 km
2,059 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Cam Lộ 11 km · thị xã Quảng Trị 11 km · Phong Điền 38 km · Hương Trà 51 km · Hue 66 km · Hương Thủy 72 km · Quán Hàu 82 km · Đồng Hới 89 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 Ðông Hà (16.8163°, 107.1003°, elevation 21 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).