Phumĭ Âmpĭl Leu weather in December

In December, Phumĭ Âmpĭl Leu sees average daytime highs of 32°C and overnight lows near 23°C, with 21 mm of rain across 3.9 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 30% 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 Phumĭ Âmpĭl Leu's 5th-clearest and 1st-windiest month. For the whole year in context, see Phumĭ Âmpĭl Leu's year-round climate.

Daytime high
32°
10th warmest
Overnight low
23°
2nd coldest
Rainfall
21 mm
3.9 wet days
Daylight
11 h 18 min
6:15 AM – 5:33 PM
Cloud cover
60%
5th clearest
Wind
11 km/h
1st windiest
Solar energy
4.85 kWh/m²
Travel score
4.7
out of 10

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 Phumĭ Âmpĭl Leu reaches about 32°C in the afternoon and slips back to 23°C overnight — a 8°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)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103124
113124
123124
133124
143123
153123
163123
173123
183123
193123
203223
213223
223223
233223
243223
253223
263223
273223
283223
293223
303223
313223

How December really feels in Phumĭ Âmpĭl Leu

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.

Phumĭ Âmpĭl Leu 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° / 23°10211.44.3
Feb34° / 24°81.811.63.5
Mar35° / 26°416.411.92.6
Apr36° / 27°8514.212.32.0
May35° / 27°16421.812.51.9
Jun33° / 26°1762412.72.1
Jul33° / 26°18926.412.62.2
Aug32° / 26°2152712.42.2
Sep32° / 25°26226.812.12.3
Oct32° / 25°20522.611.72.9
Nov32° / 24°719.511.44.2
Dec32° / 23°213.911.34.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34753
44753
54852
64654
74654
84654
94654
104654
114555
124555
134555
144555
154555
164555
174555
184555
194555
204654
214654
224654
234654
244654
254852
264852
274951
285050
295149
305248
315248

Chance of precipitation in December

Any precipitation

Phumĭ Âmpĭl Leu gets around 21 mm of rain over 3.9 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 13% and peaks near 19% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
119
219
318
418
518
618
718
817
917
1017
1116
1216
1315
1414
1514
1613
1713
1812
1911
2011
2110
229
239
248
258
267
277
287
296
306
316

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 71% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10212294215
20213304114
30213324013
40213333912
50214343811
60214353711
70215363710
8021538369
9021638359
10021639348
11031739337
12031840327
13031939326
14032139316
15042239305
16042338305
17142437295
18152537284
19162636284
20162735273
21172835263
22182935253
23183034242
24293034232
252103035222
262103035211
272113035211
282113036201
292112936201
302112937201
312112937201

Wind in December

Winds average 11 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 6:08 AM to 6:22 AM, and sunset from 5:28 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:085:28
211.36:085:29
311.36:095:29
411.36:095:29
511.36:105:29
611.36:105:30
711.36:115:30
811.36:115:30
911.36:125:31
1011.36:125:31
1111.36:135:31
1211.36:135:32
1311.36:145:32
1411.36:145:33
1511.36:155:33
1611.36:155:33
1711.36:165:34
1811.36:165:34
1911.36:175:35
2011.36:175:35
2111.36:185:36
2211.36:185:36
2311.36:195:37
2411.36:195:37
2511.36:205:38
2611.36:205:38
2711.36:215:39
2811.36:215:39
2911.36:225:40
3011.36:225:40
3111.36:225:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.85 kWh/m².

For context, solar energy here swings from a low near 4.63 kWh/m² to a high of 6.19 kWh/m² in March across the year — December's 4.85 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
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
204.8Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Phumĭ Âmpĭl Leu

In seasonPeak

In December, Phumĭ Âmpĭl Leu sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Phumĭ Âmpĭl Leu sits in the Pacific typhoon belt; the season peaks July–October.

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

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

Is December a good time to visit Phumĭ Âmpĭl Leu?

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
7.3
Beach & pool
2nd-best month of the year

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

What to pack for Phumĭ Âmpĭl Leu in December

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

In December, Phumĭ Âmpĭl Leu sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Phumĭ Âmpĭl Leu 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 Phumĭ Âmpĭl Leu peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 20 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 18UV 13Nov 20UV 8
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct10Extreme
Nov8Very high
Dec9Very high

Air quality in Phumĭ Âmpĭl Leu 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 Phumĭ Âmpĭl Leu is worst in February — around 45 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (November, 17 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1844 µg/m³Nov 1617 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb45Poor
Mar42Poor
Apr33Moderate
May24Moderate
Jun20Moderate
Jul19Moderate
Aug18Moderate
Sep20Moderate
Oct20Moderate
Nov17Moderate
Dec20Moderate
Location & terrain

Where is Phumĭ Âmpĭl Leu?

Phumĭ Âmpĭl Leu sits at 12.0°N, 105.4°E, 34 m above sea level, in Cambodia. The nearest listed city is Kampong Cham, 4.0 km away.

Prey VengChrang Chamreh MuoyPhnom PenhPreaek PrasabDarBoeng Kak Pir

Topography around Phumĭ Âmpĭl Leu

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

Within 3 km, the terrain around Phumĭ Âmpĭl Leu has only modest variations in elevation — a maximum elevation change of 83 m around an average of 31 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 90 m; within 80 km, significant variations in elevation — a maximum elevation change of 265 m.

The land around Phumĭ Âmpĭl Leu is covered by cropland (42%) and trees (28%) within 3 km, cropland (49%) and trees (26%) within 16 km, and cropland (50%) and trees (31%) within 80 km.

3 km
83 m
16 km
90 m
80 km
265 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Kampong Cham 4.0 km · Suong 27 km · Prey Veng 59 km · Chrang Chamreh Muoy 73 km · Phnom Penh 75 km · Preaek Prasab 76 km · Dar 76 km · Boeng Kak Pir 77 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 Phumĭ Âmpĭl Leu (12.0092°, 105.4341°, elevation 34 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).