Det Udom weather in December

In December, Det Udom sees average daytime highs of 30°C and overnight lows near 20°C, with 7 mm of rain across 1.4 wet days and about 11.1 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 51% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 06 min by month's end. Set against the rest of the year, December is Det Udom's 4th-clearest and 1st-windiest month. For the whole year in context, see Det Udom's year-round climate.

Daytime high
30°
12th warmest
Overnight low
20°
2nd coldest
Rainfall
7 mm
1.4 wet days
Daylight
11 h 06 min
6:22 AM – 5:29 PM
Cloud cover
44%
4th clearest
Wind
12 km/h
1st windiest
Solar energy
4.81 kWh/m²
Travel score
5.9
out of 10

Det Udom is town in Ubon Ratchathani province, Thailand.

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 30°C through the month.

A typical December day in Det Udom reaches about 30°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°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)
13121
23121
33121
43121
53121
63121
73120
83120
93120
103020
113020
123020
133020
143020
153020
163020
173020
183019
193019
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019
313119

How December really feels in Det Udom

Once humidity and wind are folded in, December averages 4 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
4
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.

Det Udom weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 19°41.311.25.5
Feb33° / 21°91.911.54.4
Mar35° / 24°326.211.93.0
Apr35° / 26°7612.212.32.3
May34° / 26°17522.412.72.1
Jun33° / 26°19023.212.92.3
Jul32° / 25°24426.412.82.4
Aug31° / 25°27327.412.52.5
Sep31° / 25°27726.112.12.6
Oct31° / 24°1301611.73.8
Nov31° / 22°354.711.35.1
Dec30° / 20°71.411.15.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36832
46832
56733
66733
76832
86733
96733
106832
116832
126832
136832
147030
157030
167030
177129
187228
197327
207426
217426
227525
237525
247525
257525
267624
277624
287624
297624
307624
317525

Chance of precipitation in December

Any precipitation

Det Udom gets around 7 mm of rain over 1.4 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 4% and peaks near 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
76
86
95
105
115
125
135
145
155
164
174
184
194
204
214
223
233
243
253
263
273
283
293
303
313

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 47% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1182245231
2182345211
3192445201
4192545191
5192644181
61102844171
71102943160
81113043150
92123142140
102133141130
112143240130
122153239120
133163238120
143163237110
153173236110
164183235110
175193234100
185203333100
19620333290
20621333190
21622333180
22722333070
23723343070
24723343060
25723353050
26723353040
27723363040
28722363130
29722373130
30621383230
31621383230

Wind in December

Winds average 12 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412calm
2512calm
2612calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 06 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 6:14 AM to 6:29 AM, and sunset from 5:25 PM to 5:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:145:25
211.26:155:25
311.26:155:25
411.26:165:26
511.26:165:26
611.26:175:26
711.16:175:26
811.16:185:27
911.16:185:27
1011.16:195:27
1111.16:205:28
1211.16:205:28
1311.16:215:28
1411.16:215:29
1511.16:225:29
1611.16:225:29
1711.16:235:30
1811.16:235:30
1911.16:245:31
2011.16:245:31
2111.16:255:32
2211.16:255:32
2311.16:265:33
2411.16:265:33
2511.16:275:34
2611.16:275:34
2711.16:275:35
2811.16:285:35
2911.16:285:36
3011.16:295:36
3111.16:295:37

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.81 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 6.13 kWh/m² in April across the year — December's 4.81 kWh/m² falls in the middle.

024151015202531
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
204.8Bright
214.8Bright
224.9Bright
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 Det Udom

In seasonPeak

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

Det Udom'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 Det Udom?

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

5.9
Sightseeing
1st-best month of the year
8.3
Beach & pool
1st-best month of the year

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

What to pack for Det Udom in December

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

In December, Det Udom sees daytime highs around 30°C and nights near 20°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Det Udom 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 Det Udom peaks around August 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 13UV 14Dec 12UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar10Extreme
Apr11Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Det Udom 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 Det Udom is worst in March — around 61 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (December, 15 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateMar 1759 µg/m³Dec 1315 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb42Poor
Mar61Unhealthy
Apr43Poor
May26Moderate
Jun20Moderate
Jul21Moderate
Aug21Moderate
Sep24Moderate
Oct24Moderate
Nov18Moderate
Dec15Moderate
Location & terrain

Where is Det Udom?

Det Udom sits at 14.9°N, 105.1°E, 137 m above sea level, in Thailand. The nearest listed city is Warin Chamrap, 39 km away.

Amnat Charoen

Topography around Det Udom

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

Within 3 km, the terrain around Det Udom has only modest variations in elevation — a maximum elevation change of 30 m around an average of 133 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 50 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,360 m.

The land around Det Udom is covered by trees (37%) and cropland (37%) within 3 km, cropland (68%) and trees (25%) within 16 km, and cropland (51%) and trees (41%) within 80 km.

3 km
30 m
16 km
50 m
80 km
1,360 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Warin Chamrap 39 km · Phibun Mangsahan 41 km · Ubon Ratchathani 44 km · Kantharalak 55 km · Pakse 81 km · Si Sa Ket 84 km · Champasak 86 km · Amnat Charoen 116 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 Det Udom (14.906°, 105.0784°, elevation 137 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).