Thị Trấn Trùng Khánh weather in December

In December, Thị Trấn Trùng Khánh sees average daytime highs of 18°C and overnight lows near 11°C, with 46 mm of rain across 9 wet days and about 10.6 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 17°C by the end. The sky is clear or mostly clear about 27% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of December to 10 h 36 min by month's end. Set against the rest of the year, December is Thị Trấn Trùng Khánh's 3rd-clearest and 5th-windiest month. For the whole year in context, see Thị Trấn Trùng Khánh's year-round climate.

Daytime high
18°
10th warmest
Overnight low
11°
2nd coldest
Rainfall
46 mm
9 wet days
Daylight
10 h 36 min
6:32 AM – 5:08 PM
Cloud cover
64%
3rd clearest
Wind
8 km/h
5th windiest
Solar energy
2.5 kWh/m²
Travel score
5.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 19°C in the first days to 17°C by the end.

A typical December day in Thị Trấn Trùng Khánh reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, December runs about 4°C cooler than November and about 2°C warmer than January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12013
22013
31913
41913
51912
61912
71912
81912
91912
101812
111812
121812
131811
141811
151811
161811
171811
181811
191811
201811
211811
221811
231711
241710
251710
261710
271710
281710
291710
301710
311710

How December really feels in Thị Trấn Trùng Khánh

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.

Thị Trấn Trùng Khánh weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 10°6112.110.84.5
Feb18° / 12°4610.611.25.2
Mar21° / 15°8115.511.85.4
Apr25° / 19°10416.712.55.4
May28° / 22°2102213.14.1
Jun30° / 24°29124.813.43.1
Jul30° / 24°2962613.33.0
Aug30° / 23°26023.812.83.3
Sep29° / 22°15116.812.14.6
Oct26° / 19°761111.56.4
Nov22° / 15°639.110.96.7
Dec18° / 11°46910.65.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33664
43664
53664
63565
73565
83664
93763
103763
113763
123862
133961
143961
154060
163961
174060
184159
194159
204258
214258
224258
234258
244159
254159
264060
274060
283862
293664
303565
313466

Chance of precipitation in December

Any precipitation

Thị Trấn Trùng Khánh gets around 46 mm of rain over 9 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 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
631
731
831
931
1030
1130
1230
1329
1429
1529
1628
1728
1828
1928
2028
2128
2227
2328
2428
2528
2629
2729
2830
2931
3032
3132

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15921146
26120136
36320125
46419125
56519115
66718114
76718114
87017103
97116103
107116103
117315102
127315102
137315102
147414102
157514101
167514101
177613101
18771391
19771391
20771391
21781381
22781381
23791371
24791371
25791371
26781471
27781471
28791470
29781570
30771580
31761590

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 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
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 42 min at the start of December to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:23 AM to 6:39 AM, and sunset from 5:05 PM to 5:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.76:235:05
210.76:235:05
310.76:245:05
410.76:255:05
510.76:255:05
610.76:265:05
710.66:275:06
810.66:275:06
910.66:285:06
1010.66:285:06
1110.66:295:07
1210.66:305:07
1310.66:305:07
1410.66:315:08
1510.66:315:08
1610.66:325:08
1710.66:325:09
1810.66:335:09
1910.66:335:09
2010.66:345:10
2110.66:345:10
2210.66:355:11
2310.66:355:11
2410.66:365:12
2510.66:365:12
2610.66:375:13
2710.66:375:13
2810.66:385:14
2910.66:385:14
3010.66:385:15
3110.66:395:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.5 kWh/m².

For context, solar energy here swings from a low near 2.06 kWh/m² to a high of 4.49 kWh/m² in August across the year — December's 2.5 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.3Moderate
Planning a trip in December

Hazard calendar for Thị Trấn Trùng Khánh

In seasonPeak

None of Thị Trấn Trùng Khánh's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Thị Trấn Trùng Khánh's monsoon runs May–September, when most of the year's rain falls.

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

Is December a good time to visit Thị Trấn Trùng Khánh?

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

5.9
Sightseeing
3rd-best month of the year
2.0
Beach & pool
10th-best month of the year

December is a reasonable time to visit Thị Trấn Trùng Khánh for sightseeing.

What to pack for Thị Trấn Trùng Khánh in December

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

In December, Thị Trấn Trùng Khánh sees daytime highs around 18°C and nights near 11°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Thị Trấn Trùng Khánh 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 Thị Trấn Trùng Khánh peaks around June 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highVery highExtremeVery highHighJun 22UV 13Dec 19UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Extreme
Apr7Very high
May8Very high
Jun13Extreme
Jul12Extreme
Aug10Extreme
Sep9Very high
Oct7High
Nov6High
Dec6High

Air quality in Thị Trấn Trùng Khánh 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 Thị Trấn Trùng Khánh is worst in April — around 44 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (July, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorApr 944 µg/m³Jul 2020 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb41Poor
Mar44Poor
Apr44Poor
May30Moderate
Jun23Moderate
Jul20Moderate
Aug21Moderate
Sep24Moderate
Oct28Moderate
Nov33Moderate
Dec39Poor
Location & terrain

Where is Thị Trấn Trùng Khánh?

Thị Trấn Trùng Khánh sits at 22.8°N, 106.5°E, 530 m above sea level, in Vietnam. The nearest listed city is Cao Bằng, 33 km away.

Bắc KạnLạng SơnThị Trấn Na DươngThái NguyênHà Giang

Topography around Thị Trấn Trùng Khánh

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Thị Trấn Trùng Khánh.

Within 3 km, the terrain around Thị Trấn Trùng Khánh has significant variations in elevation — a maximum elevation change of 338 m around an average of 577 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 630 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,792 m.

The land around Thị Trấn Trùng Khánh is covered by trees (56%) and cropland (25%) within 3 km, trees (75%) within 16 km, and trees (83%) within 80 km.

3 km
338 m
16 km
630 m
80 km
1,792 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Cao Bằng 33 km · Thị Trấn Nước Hai 40 km · Thị Trấn Thất Khê 65 km · Bắc Kạn 104 km · Lạng Sơn 112 km · Thị Trấn Na Dương 134 km · Thái Nguyên 155 km · Hà Giang 158 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 Thị Trấn Trùng Khánh (22.8351°, 106.525°, elevation 530 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).