Kanchanaburi weather in December

In December, Kanchanaburi sees average daytime highs of 31°C and overnight lows near 22°C, with 8 mm of rain across 1.7 wet days and about 11.2 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 42% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Kanchanaburi's 4th-clearest and 3rd-windiest month. For the whole year in context, see Kanchanaburi's year-round climate.

Daytime high
31°
12th warmest
Overnight low
22°
2nd coldest
Rainfall
8 mm
1.7 wet days
Daylight
11 h 12 min
6:43 AM – 5:53 PM
Cloud cover
49%
4th clearest
Wind
9 km/h
3rd windiest
Solar energy
4.74 kWh/m²
Travel score
5.2
out of 10

Kanchanaburi is town in Kanchanaburi province, Thailand.

Air quality
High
PM2.5 27 µg/m³ · 2019

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 31°C through the month.

A typical December day in Kanchanaburi reaches about 31°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°C. Set against its neighbours, December runs on par with November and about 1°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13223
23223
33223
43223
53222
63222
73222
83222
93222
103222
113222
123122
133122
143122
153122
163122
173121
183121
193121
203121
213121
223121
233121
243121
253121
263121
273121
283121
293121
303121
313121

How December really feels in Kanchanaburi

Once humidity and wind are folded in, December averages 17 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
17
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Kanchanaburi weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 21°132.111.34.7
Feb35° / 22°112.411.53.4
Mar36° / 25°336.311.92.0
Apr37° / 26°7112.612.31.3
May36° / 27°11219.912.61.6
Jun34° / 26°10919.112.82.1
Jul33° / 26°14020.912.72.4
Aug33° / 26°13721.112.52.6
Sep32° / 25°18222.812.12.5
Oct32° / 25°16419.711.73.2
Nov32° / 23°37611.44.4
Dec31° / 22°81.711.25.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25743
35743
45743
55842
65842
75842
85743
95842
105842
115941
126040
136040
146139
156238
166337
176436
186436
196634
206634
216733
226832
236832
246832
256931
266931
276931
287030
297030
307030
316931

Chance of precipitation in December

Any precipitation

Kanchanaburi gets around 8 mm of rain over 1.7 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 5% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
110
210
39
49
58
68
77
87
97
106
116
125
135
144
154
164
174
184
194
204
214
224
234
244
254
264
274
284
294
304
314

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 35% of days. Sticky, muggy-or-worse air turns up on roughly 53% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1371938295
2372038284
3372138274
4382238263
5382338253
6382438242
7492538232
8492538221
94102638211
104102638201
114112738201
125122737190
135132736180
145142736180
156152635170
167162635170
177172634160
188182533160
198192533150
209192532150
219202531150
2210202531140
2310212531140
2410212530130
2511212530120
2611212531120
2710212631120
2810212632110
2910202632110
309202733120
319192733120

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 12 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 6:35 AM to 6:49 AM, and sunset from 5:49 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:355:49
211.26:355:49
311.26:365:49
411.26:365:49
511.26:375:49
611.26:375:50
711.26:385:50
811.26:385:50
911.26:395:51
1011.26:395:51
1111.26:405:51
1211.26:415:52
1311.26:415:52
1411.26:425:52
1511.26:425:53
1611.26:435:53
1711.26:435:54
1811.26:445:54
1911.26:445:55
2011.26:455:55
2111.26:455:55
2211.26:465:56
2311.26:465:56
2411.26:475:57
2511.26:475:57
2611.26:475:58
2711.26:485:58
2811.26:485:59
2911.26:495:59
3011.26:496:00
3111.26:496:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.74 kWh/m².

For context, solar energy here swings from a low near 4.32 kWh/m² to a high of 6.2 kWh/m² in April across the year — December's 4.74 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Kanchanaburi

In seasonPeak

In December, Kanchanaburi sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Kanchanaburi sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Kanchanaburi's monsoon runs May–October, when most of the year's rain falls.

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

Is December a good time to visit Kanchanaburi?

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

5.2
Sightseeing
1st-best month of the year
7.9
Beach & pool
1st-best month of the year

December is a reasonable time to visit Kanchanaburi for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kanchanaburi in December

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

In December, Kanchanaburi sees daytime highs around 31°C and nights near 22°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Kanchanaburi in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kanchanaburi peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 16UV 14Dec 15UV 9
UV index (midday)Level
Jan9Very high
Feb9Very high
Mar13Extreme
Apr11Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Kanchanaburi 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 Kanchanaburi is worst in March — around 44 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (June, 16 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Kanchanaburi's WHO annual average of 27 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 1344 µg/m³Jun 2217 µg/m³
PM2.5 (µg/m³)Level
Jan35Moderate
Feb41Poor
Mar44Poor
Apr34Moderate
May23Moderate
Jun16Moderate
Jul17Moderate
Aug17Moderate
Sep20Moderate
Oct26Moderate
Nov25Moderate
Dec26Moderate
Location & terrain

Where is Kanchanaburi?

Kanchanaburi sits at 14.0°N, 99.5°E, 33 m above sea level, in Thailand. The nearest listed city is Tha Muang, 11 km away.

Topography around Kanchanaburi

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

Within 3 km, the terrain around Kanchanaburi has significant variations in elevation — a maximum elevation change of 337 m around an average of 51 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 483 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,266 m.

The land around Kanchanaburi is covered by trees (47%) and artificial surfaces (28%) within 3 km, trees (45%) and cropland (35%) within 16 km, and trees (53%) and cropland (37%) within 80 km.

3 km
337 m
16 km
483 m
80 km
1,266 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Tha Muang 11 km · Tha Maka 26 km · Bo Phloi 36 km · Ban Pong 41 km · Chom Bueng 43 km · Photharam 48 km · Ban I Chang 50 km · Bang Phae 54 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 Kanchanaburi (14.0041°, 99.5483°, elevation 33 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). 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).