Mae Chan weather in December

In December, Mae Chan sees average daytime highs of 26°C and overnight lows near 14°C, with 27 mm of rain across 3.7 wet days and about 10.8 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 60% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 10 h 54 min at the start of December to 10 h 48 min by month's end. Set against the rest of the year, December is Mae Chan's 4th-clearest and 8th-windiest month. For the whole year in context, see Mae Chan's year-round climate.

Daytime high
26°
12th warmest
Overnight low
14°
3rd coldest
Rainfall
27 mm
3.7 wet days
Daylight
10 h 48 min
6:53 AM – 5:40 PM
Cloud cover
36%
4th clearest
Wind
4 km/h
8th windiest
Solar energy
4.12 kWh/m²
Travel score
8.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical December day in Mae Chan reaches about 26°C in the afternoon and slips back to 14°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 29°C. Set against its neighbours, December runs about 2°C cooler than November and about 1°C cooler than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32716
42716
52716
62715
72615
82615
92615
102615
112615
122615
132615
142615
152614
162614
172614
182614
192614
202614
212614
222614
232613
242613
252613
262613
272613
282613
292613
302613
312613

How December really feels in Mae Chan

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.

Mae Chan weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 13°232.910.98.0
Feb30° / 14°142.311.36.3
Mar33° / 17°395.111.94.5
Apr33° / 20°12211.712.43.3
May32° / 23°28222.212.92.9
Jun31° / 24°32426.713.22.5
Jul30° / 24°4222913.12.6
Aug30° / 23°39329.212.72.6
Sep30° / 23°28625.112.13.1
Oct29° / 21°13417.511.54.5
Nov28° / 18°486.3116.9
Dec26° / 14°273.710.88.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57426
67426
77426
87426
97426
107426
117525
127525
137525
147624
157723
167723
177921
187921
198020
208020
218119
228119
238119
248218
258218
268119
278119
288119
297921
307921
317921

Chance of precipitation in December

Any precipitation

Mae Chan gets around 27 mm of rain over 3.7 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 12% and peaks near 16% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
116
216
316
416
516
616
715
815
914
1014
1113
1213
1312
1411
1511
1610
1710
189
199
209
219
229
2310
2410
2510
2610
2711
2811
2911
3012
3112

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the comfortable band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
192240263
2102339262
3102438262
4112537252
5112637252
6122736242
7122835242
8132935231
9133034221
10143033211
11153133201
12173232191
13183232171
14203231161
15213330151
16233330130
17253329120
18263429110
19283428100
2029352890
2130362780
2230362670
2331372670
2431382560
2531392460
2630402460
2730412360
2829422360
2928432360
3026442360
3125452470

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 54 min at the start of December to 10 h 48 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 6:44 AM to 7:00 AM, and sunset from 5:36 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:445:36
210.96:455:37
310.96:465:37
410.86:465:37
510.86:475:37
610.86:475:37
710.86:485:37
810.86:495:38
910.86:495:38
1010.86:505:38
1110.86:505:39
1210.86:515:39
1310.86:515:39
1410.86:525:40
1510.86:535:40
1610.86:535:40
1710.86:545:41
1810.86:545:41
1910.86:555:42
2010.86:555:42
2110.86:565:42
2210.86:565:43
2310.86:575:43
2410.86:575:44
2510.86:585:44
2610.86:585:45
2710.86:585:45
2810.86:595:46
2910.86:595:47
3010.87:005:47
3110.87:005:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.12 kWh/m².

For context, solar energy here swings from a low near 4.01 kWh/m² to a high of 6.31 kWh/m² in April across the year — December's 4.12 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.0Bright
44.0Bright
54.0Bright
64.0Bright
74.0Bright
84.0Bright
94.0Bright
104.0Bright
114.0Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in December

Hazard calendar for Mae Chan

In seasonPeak

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

Mae Chan'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 Mae Chan?

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

8.1
Sightseeing
1st-best month of the year
7.7
Beach & pool
3rd-best month of the year

December is one of the better times to visit Mae Chan for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Mae Chan in December

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

In December, Mae Chan sees daytime highs around 26°C and nights near 14°C. Worth packing: light clothes. About 4 days see rain.

light clothes

UV index in Mae Chan in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Mae Chan peaks around July 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJul 17UV 13Dec 21UV 7
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar9Very high
Apr10Very high
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Mae Chan 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 Mae Chan is worst in April — around 156 µg/m³ PM2.5 (very unhealthy), about 12.0× the cleanest month (July, 13 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateApr 11150 µg/m³Jul 2313 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb40Poor
Mar128Unhealthy
Apr156Very unhealthy
May37Poor
Jun15Moderate
Jul13Moderate
Aug13Moderate
Sep13Moderate
Oct14Moderate
Nov15Moderate
Dec19Moderate
Location & terrain

Where is Mae Chan?

Mae Chan sits at 20.1°N, 99.9°E, 416 m above sea level, in Thailand. The nearest listed city is Chiang Rai, 27 km away.

PhayaoDok Kham TaiMöng Yawng

Topography around Mae Chan

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

Within 3 km, the terrain around Mae Chan has significant variations in elevation — a maximum elevation change of 372 m around an average of 432 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 898 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,922 m.

The land around Mae Chan is covered by cropland (46%) and trees (34%) within 3 km, trees (65%) and cropland (24%) within 16 km, and trees (74%) within 80 km.

3 km
372 m
16 km
898 m
80 km
1,922 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Chiang Rai 27 km · Mae Sai 32 km · Ban Khoan 34 km · Tachilek 34 km · Ban Houakhoua 64 km · Phayao 106 km · Dok Kham Tai 110 km · Möng Yawng 126 km

Thailand travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$8,057
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
4.8
per 100k, 2011
Road deaths
32.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 402
Religion
Buddhist 93%Muslim 5%Christian 1%other 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 Mae Chan (20.1468°, 99.8526°, elevation 416 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).