Kampong Thom weather in December

In December, Kampong Thom sees average daytime highs of 32°C and overnight lows near 22°C, with 20 mm of rain across 2.8 wet days and about 11.3 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 31% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 h 18 min at the start of December to 11 h 18 min by month's end. Set against the rest of the year, December is Kampong Thom's 4th-clearest and 1st-windiest month. For the whole year in context, see Kampong Thom's year-round climate.

Daytime high
32°
10th warmest
Overnight low
22°
2nd coldest
Rainfall
20 mm
2.8 wet days
Daylight
11 h 18 min
6:19 AM – 5:34 PM
Cloud cover
57%
4th clearest
Wind
8 km/h
1st windiest
Solar energy
4.8 kWh/m²
Travel score
4.8
out of 10

Kampong Thom is Capital of the same named Cambodian province.

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 32°C through the month.

A typical December day in Kampong Thom reaches about 32°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°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
53223
63223
73223
83223
93223
103223
113223
123223
133223
143223
153222
163222
173222
183222
193222
203222
213222
223222
233222
243222
253222
263222
273222
283222
293222
303222
313222

How December really feels in Kampong Thom

Once humidity and wind are folded in, December averages 31 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
31
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.

Kampong Thom weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°91.411.34.4
Feb34° / 24°122.211.63.4
Mar36° / 26°487.311.92.3
Apr36° / 27°9615.612.31.9
May35° / 26°16922.712.61.8
Jun33° / 26°1852312.72.1
Jul33° / 26°20125.212.72.2
Aug32° / 25°22026.812.42.2
Sep32° / 25°28626.812.12.4
Oct31° / 24°18621.811.73.0
Nov32° / 24°678.911.44.2
Dec32° / 22°202.811.34.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% 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 47%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35248
45248
55248
65149
75149
85149
95149
105149
115149
125149
135149
145149
155149
165248
175248
185248
195248
205248
215347
225347
235347
245446
255347
265446
275446
285545
295545
305644
315743

Chance of precipitation in December

Any precipitation

Kampong Thom gets around 20 mm of rain over 2.8 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 9% and peaks near 16% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
116
215
315
414
514
614
713
813
913
1012
1112
1211
1311
1410
1510
169
179
188
198
207
217
226
236
245
255
265
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 40% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10210354211
20211364110
3031137409
4031238399
5031339388
6031340377
7031441367
8031541356
9031642346
10031742336
11031842315
12041942305
13042042294
14152142284
15152242274
16162342263
17162441253
18172541243
19172641232
20182740212
21192840202
22192940192
231103039181
241113139171
251113139161
261113239151
271123239150
281123339140
291123339140
301123339140
311123439140

Wind in December

Winds average 8 km/h in December, the windiest month of the year.

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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 18 min at the start of December to 11 h 18 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 6:11 AM to 6:26 AM, and sunset from 5:29 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:115:29
211.36:125:30
311.36:125:30
411.36:135:30
511.36:135:30
611.36:145:31
711.36:145:31
811.36:155:31
911.36:155:32
1011.36:165:32
1111.36:165:32
1211.36:175:33
1311.36:175:33
1411.36:185:33
1511.36:185:34
1611.36:195:34
1711.36:195:35
1811.36:205:35
1911.36:205:36
2011.36:215:36
2111.36:215:36
2211.36:225:37
2311.36:225:37
2411.36:235:38
2511.36:235:38
2611.36:245:39
2711.36:245:39
2811.36:255:40
2911.36:255:40
3011.36:255:41
3111.36:265:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.8 kWh/m².

For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 6.07 kWh/m² in March across the year — December's 4.8 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.7Bright
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
234.9Bright
244.9Bright
254.9Bright
264.9Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Kampong Thom

In seasonPeak

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

Kampong Thom's rainy season runs May–October, when most of the year's rain falls.

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

Is December a good time to visit Kampong Thom?

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

4.8
Sightseeing
1st-best month of the year
7.5
Beach & pool
2nd-best month of the year

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

What to pack for Kampong Thom in December

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

In December, Kampong Thom sees daytime highs around 32°C and nights near 22°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Kampong Thom in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kampong Thom peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highAug 16UV 14Nov 21UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar11Extreme
Apr11Extreme
May10Very high
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Kampong Thom 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 Kampong Thom is worst in March — around 69 µg/m³ PM2.5 (unhealthy), about 6.4× the cleanest month (November, 11 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateGoodMar 1267 µg/m³Nov 1911 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb62Unhealthy
Mar69Unhealthy
Apr42Poor
May20Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep14Moderate
Oct14Moderate
Nov11Good
Dec12Moderate
Location & terrain

Where is Kampong Thom?

Kampong Thom sits at 12.7°N, 104.9°E, 16 m above sea level, in Cambodia. The nearest listed city is Phumĭ Tnaôt, 43 km away.

Phumĭ TnaôtKampong ChhnangPhumĭ Âmpĭl LeuKampong ChamPursatPhumĭ Véal TônsayChrang Chamreh MuoySuong

Topography around Kampong Thom

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

Within 3 km, the terrain around Kampong Thom has only modest variations in elevation — a maximum elevation change of 14 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 198 m; within 80 km, significant variations in elevation — a maximum elevation change of 455 m.

The land around Kampong Thom is covered by cropland (54%) within 3 km, cropland (72%) within 16 km, and cropland (37%) and trees (32%) within 80 km.

3 km
14 m
16 km
198 m
80 km
455 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Phumĭ Tnaôt 43 km · Kampong Chhnang 57 km · Phumĭ Âmpĭl Leu 98 km · Kampong Cham 101 km · Pursat 107 km · Phumĭ Véal Tônsay 118 km · Chrang Chamreh Muoy 120 km · Suong 122 km

Cambodia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / C / G
230 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$2,872
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
1.8
per 100k, 2011
Road deaths
19.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 390
Religion
Buddhist 97%Muslim 2%other 1%Christian 0%

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 Kampong Thom (12.7111°, 104.8887°, elevation 16 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).