Thị Trấn Thuận Châu weather in December

In December, Thị Trấn Thuận Châu sees average daytime highs of 22°C and overnight lows near 13°C, with 38 mm of rain across 6.3 wet days and about 10.7 hours of daylight. It is the 11th-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 36% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of December to 10 h 42 min by month's end. Set against the rest of the year, December is Thị Trấn Thuận Châu's 4th-clearest and 4th-windiest month. For the whole year in context, see Thị Trấn Thuận Châu's year-round climate.

Daytime high
22°
11th warmest
Overnight low
13°
2nd coldest
Rainfall
38 mm
6.3 wet days
Daylight
10 h 42 min
6:40 AM – 5:22 PM
Cloud cover
52%
4th clearest
Wind
4 km/h
4th windiest
Solar energy
3.13 kWh/m²
Travel score
7.4
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 Thị Trấn Thuận Châu reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°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 3°C cooler than November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12315
22315
32314
42314
52314
62314
72214
82214
92214
102213
112213
122213
132213
142213
152213
162213
172213
182212
192212
202212
212212
222212
232112
242112
252112
262112
272112
282112
292112
302112
312112

How December really feels in Thị Trấn Thuận Châu

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 Thuận Châu weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 12°397.110.87.0
Feb24° / 13°357.511.37.3
Mar27° / 16°7111.611.86.5
Apr29° / 20°11215.512.54.8
May30° / 22°20721.2133.5
Jun30° / 23°35726.513.32.9
Jul29° / 23°42827.613.23.0
Aug29° / 23°3632712.73.1
Sep29° / 22°18519.612.14.1
Oct28° / 20°609.611.56.3
Nov25° / 16°375.6117.5
Dec22° / 13°386.310.77.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
24951
34951
44852
54852
64753
74753
84753
94951
104951
115050
125149
135248
145446
155545
165743
175743
185842
195941
205941
215941
226040
236040
245941
256040
265941
275842
285842
295842
305743
315644

Chance of precipitation in December

Any precipitation

Thị Trấn Thuận Châu gets around 38 mm of rain over 6.3 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 19% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
123
223
323
424
524
624
723
823
923
1022
1121
1220
1319
1418
1518
1617
1716
1816
1916
2016
2116
2216
2316
2416
2517
2617
2717
2818
2918
3019
3120

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 43% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12539297
22640286
32740276
42841256
52941245
63041235
73242225
83342214
93442204
103642193
113841183
123941183
134140172
144339172
154438162
164637162
174736151
184936151
195035141
205134141
215234131
225334130
235434120
245434120
255335120
265435110
275336110
285237110
295138110
305039110
314939110

Wind in December

Winds average 4 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 48 min at the start of December to 10 h 42 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 6:31 AM to 6:47 AM, and sunset from 5:19 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:315:19
210.86:325:19
310.86:335:19
410.86:335:19
510.86:345:19
610.76:355:19
710.76:355:20
810.76:365:20
910.76:365:20
1010.76:375:20
1110.76:385:21
1210.76:385:21
1310.76:395:21
1410.76:395:22
1510.76:405:22
1610.76:405:22
1710.76:415:23
1810.76:415:23
1910.76:425:24
2010.76:425:24
2110.76:435:25
2210.76:435:25
2310.76:445:25
2410.76:445:26
2510.76:455:26
2610.76:455:27
2710.76:465:28
2810.76:465:28
2910.76:465:29
3010.76:475:29
3110.76:475:30

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.13 kWh/m².

For context, solar energy here swings from a low near 3.08 kWh/m² to a high of 5.21 kWh/m² in April across the year — December's 3.13 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.2Moderate
173.2Moderate
183.2Moderate
193.2Moderate
203.2Moderate
213.2Moderate
223.2Moderate
233.2Moderate
243.2Moderate
253.2Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.1Moderate
Planning a trip in December

Hazard calendar for Thị Trấn Thuận Châu

In seasonPeak

None of Thị Trấn Thuận Châu'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 Thuận Châu's monsoon runs May–August, 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 Thuận Châu?

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

7.4
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 Thị Trấn Thuận Châu for general sightseeing.

What to pack for Thị Trấn Thuận Châu in December

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

In December, Thị Trấn Thuận Châu sees daytime highs around 22°C and nights near 13°C. Little to plan around — just the basics. About 6 days see rain.

UV index in Thị Trấn Thuận Châu 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 Thuận Châu peaks around June 20 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highHighJun 20UV 13Dec 19UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar11Extreme
Apr9Very high
May10Extreme
Jun13Extreme
Jul13Extreme
Aug12Extreme
Sep10Very high
Oct9Very high
Nov8Very high
Dec6High

Air quality in Thị Trấn Thuận Châu 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 Thuận Châu is worst in April — around 99 µg/m³ PM2.5 (unhealthy), about 8.1× the cleanest month (July, 12 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyModerateApr 1395 µg/m³Jul 2212 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb41Poor
Mar73Unhealthy
Apr99Unhealthy
May32Moderate
Jun14Moderate
Jul12Moderate
Aug13Moderate
Sep17Moderate
Oct23Moderate
Nov26Moderate
Dec30Moderate
Location & terrain

Where is Thị Trấn Thuận Châu?

Thị Trấn Thuận Châu sits at 21.4°N, 103.7°E, 594 m above sea level, in Vietnam. The nearest listed city is Sơn La, 27 km away.

SapaLai ChâuThị Trấn Phố Lu

Topography around Thị Trấn Thuận Châu

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

Within 3 km, the terrain around Thị Trấn Thuận Châu has significant variations in elevation — a maximum elevation change of 505 m around an average of 699 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,610 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,825 m.

The land around Thị Trấn Thuận Châu is covered by trees (73%) within 3 km, trees (76%) within 16 km, and trees (69%) and grassland (26%) within 80 km.

3 km
505 m
16 km
1,610 m
80 km
2,825 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Sơn La 27 km · Ít Ong 36 km · Dien Bien Phu 69 km · Mường Lay 85 km · Nghĩa Lộ 87 km · Sapa 102 km · Lai Châu 109 km · Thị Trấn Phố Lu 111 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 Thuận Châu (21.4385°, 103.69°, elevation 594 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).