Svay Rieng weather in December

In December, Svay Rieng sees average daytime highs of 32°C and overnight lows near 23°C, with 45 mm of rain across 7.2 wet days and about 11.4 hours of daylight. It is the 11th-warmest and 9th-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 20% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of December to 11 h 24 min by month's end. Set against the rest of the year, December is Svay Rieng's 5th-clearest and 5th-windiest month. For the whole year in context, see Svay Rieng's year-round climate.

Daytime high
32°
11th warmest
Overnight low
23°
2nd coldest
Rainfall
45 mm
7.2 wet days
Daylight
11 h 24 min
6:12 AM – 5:34 PM
Cloud cover
67%
5th clearest
Wind
9 km/h
5th windiest
Solar energy
4.73 kWh/m²
Travel score
4.2
out of 10

Svay Rieng 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 Svay Rieng 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 on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163223
173223
183223
193223
203223
213223
223223
233223
243223
253223
263223
273223
283223
293223
303223
313223

How December really feels in Svay Rieng

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.

Svay Rieng weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°213.211.44.4
Feb33° / 24°101.811.64.0
Mar35° / 25°335.611.92.9
Apr35° / 26°8613.612.22.1
May34° / 26°1762412.51.9
Jun33° / 26°20826.512.62.1
Jul32° / 25°22927.512.62.2
Aug32° / 25°24528.412.42.2
Sep32° / 25°28127.812.12.2
Oct32° / 25°27125.911.82.5
Nov32° / 24°11013.911.53.6
Dec32° / 23°457.211.44.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% 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 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33664
43763
53763
63763
73862
83763
93763
103763
113862
123862
133862
143862
153862
163862
173862
183862
193961
203862
213862
223862
233862
243961
253961
263961
274060
284159
294159
304258
314258

Chance of precipitation in December

Any precipitation

Svay Rieng gets around 45 mm of rain over 7.2 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 23% and peaks near 33% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
133
233
332
431
530
630
729
829
928
1027
1127
1226
1325
1424
1524
1623
1723
1822
1921
2020
2120
2219
2318
2417
2517
2616
2715
2815
2914
3014
3113

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1029234522
20210244421
30210254420
40211264319
50211274318
60211284317
70211284315
80212294314
90212304313
100212304412
110213304411
120213314410
13021431449
14031531438
15131531438
16131631427
17141631427
18141731416
19141831406
20151831395
21151932385
22151933375
23161934364
24161934354
25161835354
26161836344
27161738353
28161738353
29161639353
30161539353
31161540362

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
18calm
28calm
38calm
48calm
58calm
68calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 24 min at the start of December to 11 h 24 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 6:05 AM to 6:19 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)
111.46:055:28
211.46:055:29
311.46:065:29
411.46:065:29
511.46:075:30
611.46:075:30
711.46:085:30
811.46:085:31
911.46:095:31
1011.46:095:31
1111.46:105:32
1211.46:105:32
1311.46:115:32
1411.46:115:33
1511.46:125:33
1611.46:125:34
1711.46:135:34
1811.46:135:34
1911.46:145:35
2011.46:145:35
2111.46:155:36
2211.46:155:36
2311.46:165:37
2411.46:165:37
2511.46:175:38
2611.46:175:38
2711.46:185:39
2811.46:185:39
2911.46:185:40
3011.46:195:40
3111.46:195:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.73 kWh/m².

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 6.12 kWh/m² in April across the year — December's 4.73 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Svay Rieng

In seasonPeak

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

Svay Rieng sits in the Pacific typhoon belt; the season peaks July–October.

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

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

Is December a good time to visit Svay Rieng?

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

4.2
Sightseeing
2nd-best month of the year
6.7
Beach & pool
3rd-best month of the year

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

What to pack for Svay Rieng in December

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

In December, Svay Rieng sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Svay Rieng 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 Svay Rieng peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 19 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 19UV 8
UV index (midday)Level
Jan11Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct10Very high
Nov8Very high
Dec9Very high

Air quality in Svay Rieng 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 Svay Rieng is worst in January — around 51 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (August, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 2151 µg/m³Aug 1324 µg/m³
PM2.5 (µg/m³)Level
Jan51Poor
Feb48Poor
Mar45Poor
Apr41Poor
May34Moderate
Jun29Moderate
Jul26Moderate
Aug24Moderate
Sep30Moderate
Oct37Poor
Nov40Poor
Dec41Poor
Location & terrain

Where is Svay Rieng?

Svay Rieng sits at 11.1°N, 105.8°E, 12 m above sea level, in Cambodia. The nearest listed city is Bavet, 37 km away.

BavetTây NinhHòa ThànhPhú KhươngTràm ChimDương Minh ChâuHồng NgựTrảng Bàng

Topography around Svay Rieng

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

Within 3 km, the terrain around Svay Rieng has only modest variations in elevation — a maximum elevation change of 15 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 24 m; within 80 km, large variations in elevation — a maximum elevation change of 960 m.

The land around Svay Rieng is covered by cropland (44%) within 3 km, cropland (82%) within 16 km, and cropland (67%) and trees (25%) within 80 km.

3 km
15 m
16 km
24 m
80 km
960 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Bavet 37 km · Tây Ninh 41 km · Hòa Thành 42 km · Phú Khương 42 km · Tràm Chim 53 km · Dương Minh Châu 57 km · Hồng Ngự 59 km · Trảng Bàng 61 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 Svay Rieng (11.0878°, 105.7994°, elevation 12 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).