Kampong Speu weather in December

In December, Kampong Speu sees average daytime highs of 31°C and overnight lows near 23°C, with 27 mm of rain across 4.7 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 31°C through the month. The sky is clear or mostly clear about 26% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 h 24 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 Speu's 4th-clearest and 1st-windiest month. For the whole year in context, see Kampong Speu's year-round climate.

Daytime high
31°
10th warmest
Overnight low
23°
2nd coldest
Rainfall
27 mm
4.7 wet days
Daylight
11 h 18 min
6:18 AM – 5:38 PM
Cloud cover
62%
4th clearest
Wind
10 km/h
1st windiest
Solar energy
4.86 kWh/m²
Travel score
4.7
out of 10

Kampong Speu is city in Cambodia.

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 Kampong Speu reaches about 31°C in the afternoon and slips back to 23°C overnight — a 9°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)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233122
243122
253122
263222
273222
283222
293222
303222
313222

How December really feels in Kampong Speu

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 Speu 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°162.811.44.4
Feb34° / 23°10211.63.6
Mar36° / 25°457.911.92.4
Apr36° / 26°8515.312.21.8
May35° / 26°13322.412.51.7
Jun34° / 26°12321.712.72.1
Jul33° / 25°12522.912.62.3
Aug33° / 25°13723.112.42.4
Sep32° / 25°2062612.12.3
Oct31° / 24°22824.711.72.8
Nov31° / 24°7211.711.54.0
Dec31° / 23°274.711.34.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% 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 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44258
54258
64258
74258
84258
94159
104159
114159
124159
134159
144258
154258
164159
174258
184258
194357
204357
214456
224555
234654
244654
254654
264654
274852
284753
294852
304852
314951

Chance of precipitation in December

Any precipitation

Kampong Speu gets around 27 mm of rain over 4.7 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 16% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
125
224
323
422
522
621
721
820
920
1019
1118
1218
1317
1417
1516
1615
1715
1814
1914
2013
2112
2212
2311
2411
2510
2610
279
289
299
309
319

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 38% 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 (%)
1021232486
2021333476
3021334455
4031435444
5031536424
6031538414
7031639403
8031740383
9031740373
10031841352
11031941342
12032041332
13042141322
14142241311
15152340301
16152440291
17162539281
18162639271
19172738261
20182837251
21292836241
222102936231
232103036220
242113036210
252113036200
262123037190
272123037190
282122938180
292122938180
302122939180
312122839180

Wind in December

Winds average 10 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 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
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 24 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 shrink by about 6 minutes over December. Sunrise moves from 6:10 AM to 6:25 AM, and sunset from 5:33 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:105:33
211.46:115:33
311.46:115:33
411.46:125:34
511.46:125:34
611.46:135:34
711.46:135:35
811.36:145:35
911.36:155:35
1011.36:155:36
1111.36:165:36
1211.36:165:36
1311.36:175:37
1411.36:175:37
1511.36:185:38
1611.36:185:38
1711.36:195:38
1811.36:195:39
1911.36:205:39
2011.36:205:40
2111.36:215:40
2211.36:215:41
2311.36:225:41
2411.36:225:42
2511.36:225:42
2611.36:235:43
2711.36:235:43
2811.36:245:44
2911.36:245:44
3011.36:255:45
3111.36:255:45

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.86 kWh/m².

For context, solar energy here swings from a low near 4.59 kWh/m² to a high of 6.07 kWh/m² in March across the year — December's 4.86 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Kampong Speu

In seasonPeak

None of Kampong Speu'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 Speu'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 Speu?

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

4.7
Sightseeing
1st-best month of the year
7.2
Beach & pool
2nd-best month of the year

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

What to pack for Kampong Speu in December

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

In December, Kampong Speu sees daytime highs around 31°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

UV index in Kampong Speu 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 Kampong Speu peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 18UV 14Nov 23UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Kampong Speu 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 Speu is worst in February — around 43 µg/m³ PM2.5 (poor), about 3.5× the cleanest month (August, 13 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1542 µg/m³Aug 1913 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb43Poor
Mar35Moderate
Apr26Moderate
May18Moderate
Jun14Moderate
Jul14Moderate
Aug13Moderate
Sep14Moderate
Oct17Moderate
Nov18Moderate
Dec19Moderate
Location & terrain

Where is Kampong Speu?

Kampong Speu sits at 11.5°N, 104.5°E, 35 m above sea level, in Cambodia. The nearest listed city is Phumĭ Véal Tônsay, 28 km away.

KandoengDangkaoBoeng Kak PirChrang Chamreh MuoyPhnom PenhTa Khmau

Topography around Kampong Speu

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

Within 3 km, the terrain around Kampong Speu has only modest variations in elevation — a maximum elevation change of 20 m around an average of 33 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 580 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,787 m.

The land around Kampong Speu is covered by cropland (41%) and artificial surfaces (22%) within 3 km, cropland (63%) within 16 km, and cropland (53%) and trees (28%) within 80 km.

3 km
20 m
16 km
580 m
80 km
1,787 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Phumĭ Véal Tônsay 28 km · Phumĭ Yoŭl Toŭng 30 km · Kandoeng 39 km · Dangkao 41 km · Boeng Kak Pir 42 km · Chrang Chamreh Muoy 44 km · Phnom Penh 45 km · Ta Khmau 47 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 Speu (11.4533°, 104.5208°, elevation 35 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).