Chom Bueng weather in December

In December, Chom Bueng sees average daytime highs of 29°C and overnight lows near 20°C, with 12 mm of rain across 2.5 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 29°C through the month. The sky is clear or mostly clear about 40% 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 12 min by month's end. Set against the rest of the year, December is Chom Bueng's 4th-clearest and 4th-windiest month. For the whole year in context, see Chom Bueng's year-round climate.

Daytime high
29°
12th warmest
Overnight low
20°
2nd coldest
Rainfall
12 mm
2.5 wet days
Daylight
11 h 12 min
6:42 AM – 5:54 PM
Cloud cover
50%
4th clearest
Wind
7 km/h
4th windiest
Solar energy
4.75 kWh/m²
Travel score
6.5
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Chom Bueng reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°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)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

How December really feels in Chom Bueng

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Chom Bueng 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
Jan30° / 20°152.911.36.0
Feb32° / 21°153.211.54.8
Mar34° / 23°478.711.93.4
Apr34° / 24°8814.912.32.4
May33° / 25°14722.912.62.3
Jun32° / 25°13121.512.82.8
Jul31° / 24°17123.412.73.0
Aug31° / 24°17924.212.53.0
Sep31° / 24°21625.612.12.8
Oct30° / 23°19522.611.73.5
Nov30° / 22°477.611.45.4
Dec29° / 20°122.511.26.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% 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 (%)
15743
25743
35743
45842
55743
65842
75842
85842
95941
105941
116040
126040
136139
146238
156238
166436
176436
186436
196535
206535
216535
226535
236634
246634
256634
266634
276832
286832
296832
306832
316733

Chance of precipitation in December

Any precipitation

Chom Bueng gets around 12 mm of rain over 2.5 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 8% and peaks near 13% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
113
213
312
412
511
611
711
810
910
109
119
128
138
147
157
167
176
186
196
206
216
226
236
246
256
266
276
286
296
307
317

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 56% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1261738351
2371838341
3371938321
4371939310
5382039300
6382140290
7392140270
8392240260
93102240250
103112340240
113112340220
124122339210
134132438200
145152437200
155162337190
166172336180
177172335170
187182335170
198192334160
209202333160
219202332150
229202432150
2310212432140
2410212432130
2510212532130
2610212532120
2710202533120
2810202633110
299192634110
309182735110
318172736120

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 18 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 shrink by about 6 minutes over December. Sunrise moves from 6:34 AM to 6:49 AM, and sunset from 5:49 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:345:49
211.26:345:49
311.26:355:49
411.26:355:50
511.26:365:50
611.26:365:50
711.26:375:51
811.26:385:51
911.26:385:51
1011.26:395:52
1111.26:395:52
1211.26:405:52
1311.26:405:53
1411.26:415:53
1511.26:415:53
1611.26:425:54
1711.26:425:54
1811.26:435:55
1911.26:435:55
2011.26:445:56
2111.26:445:56
2211.26:455:56
2311.26:455:57
2411.26:465:57
2511.26:465:58
2611.26:475:58
2711.26:475:59
2811.26:475:59
2911.26:486:00
3011.26:486:00
3111.26:496:01

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.75 kWh/m².

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 6.06 kWh/m² in April across the year — December's 4.75 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
94.6Bright
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
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Chom Bueng

In seasonPeak

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

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

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

Is December a good time to visit Chom Bueng?

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

6.5
Sightseeing
1st-best month of the year
8.3
Beach & pool
1st-best month of the year

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

What to pack for Chom Bueng in December

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

In December, Chom Bueng sees daytime highs around 29°C and nights near 20°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Chom Bueng in December

The nearest coast averages about 28°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 64 km away) is warmest in May at about 31°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Chom Bueng 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 Chom Bueng peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 13Jan 1UV 9
UV index (midday)Level
Jan9Very high
Feb9Very high
Mar13Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Chom Bueng 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 Chom Bueng is worst in February — around 61 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (August, 24 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorFeb 1861 µg/m³Aug 1024 µg/m³
PM2.5 (µg/m³)Level
Jan58Unhealthy
Feb61Unhealthy
Mar60Unhealthy
Apr47Poor
May33Moderate
Jun24Moderate
Jul24Moderate
Aug24Moderate
Sep29Moderate
Oct46Poor
Nov48Poor
Dec48Poor
Location & terrain

Where is Chom Bueng?

Chom Bueng sits at 13.6°N, 99.6°E, 89 m above sea level, in Thailand. The nearest listed city is Ratchaburi, 26 km away.

Topography around Chom Bueng

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

Within 3 km, the terrain around Chom Bueng has only modest variations in elevation — a maximum elevation change of 90 m around an average of 88 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 420 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,306 m.

The land around Chom Bueng is covered by cropland (41%) and trees (36%) within 3 km, cropland (43%) and trees (37%) within 16 km, and trees (57%) and cropland (25%) within 80 km.

3 km
90 m
16 km
420 m
80 km
1,306 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Ratchaburi 26 km · Photharam 29 km · Ban I Chang 34 km · Tha Maka 36 km · Bang Phae 37 km · Ban Pong 38 km · Tha Muang 38 km · Damnoen Saduak 41 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 Chom Bueng (13.62°, 99.5917°, elevation 89 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).