Det Udom weather in January

In January, Det Udom sees average daytime highs of 31°C and overnight lows near 19°C, with 4 mm of rain across 1.3 wet days and about 11.2 hours of daylight. It is the 7th-warmest and 12th-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 59% of the time in January, and the air most often feels humid.

Daylight stretches from about 11 h 06 min at the start of January to 11 h 18 min by month's end. Set against the rest of the year, January is Det Udom's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Det Udom's year-round climate.

Daytime high
31°
7th warmest
Overnight low
19°
1st coldest
Rainfall
4 mm
1.3 wet days
Daylight
11 h 12 min
6:33 AM – 5:45 PM
Cloud cover
37%
2nd clearest
Wind
9 km/h
3rd windiest
Solar energy
5.22 kWh/m²
Travel score
5.5
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 January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical January day in Det Udom reaches about 31°C in the afternoon and slips back to 19°C overnight — a 12°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, January runs about 1°C warmer than December and about 2°C cooler than February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13119
23119
33119
43119
53119
63119
73119
83119
93119
103119
113119
123119
133119
143119
153119
163119
173119
183119
193119
203119
213119
223119
233119
243219
253219
263219
273219
283219
293220
303220
313220

How January really feels in Det Udom

Once humidity and wind are folded in, January averages 1 day 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
1
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Det Udom weather by month

How January compares with the rest of the year at a glance. January is the 7th-warmest and 12th-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37426
47228
57228
67228
77228
87129
97129
107129
117129
127228
137327
147327
157327
167327
177525
187525
197525
207624
217723
227822
237822
247822
257921
268020
278020
288119
298218
308218
318317

Chance of precipitation in January

Any precipitation

Det Udom gets around 4 mm of rain over 1.3 wet days in January, the driest month. 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 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
13
23
33
43
53
63
73
84
94
104
114
124
135
145
155
165
175
185
195
205
215
225
235
245
255
265
275
285
295
305
315

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
152139323
252040323
352040323
452040323
552041314
651941314
751941305
851941305
961941295
1061941286
1161941286
1261941276
1362041277
1462041267
1572041267
1672040267
1772040266
1872140266
1972139276
2072139276
2172139275
2272238285
2372238285
2472338285
2572337285
2672337285
2772337285
2882436285
2982436275
3082536275
3182535266

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 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
111calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 06 min at the start of January to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:29 AM to 6:33 AM, and sunset from 5:37 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:295:37
211.16:295:37
311.16:305:38
411.16:305:38
511.16:305:39
611.16:315:40
711.26:315:40
811.26:315:41
911.26:315:41
1011.26:325:42
1111.26:325:42
1211.26:325:43
1311.26:325:43
1411.26:325:44
1511.26:335:45
1611.26:335:45
1711.26:335:46
1811.26:335:46
1911.26:335:47
2011.26:335:47
2111.26:335:48
2211.36:335:48
2311.36:335:49
2411.36:335:50
2511.36:335:50
2611.36:335:51
2711.36:335:51
2811.36:335:52
2911.36:335:52
3011.36:335:53
3111.36:335:53

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.22 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 — January's 5.22 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in January

Hazard calendar for Det Udom

In seasonPeak

None of Det Udom's seasonal hazards are active in January. 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 January a good time to visit Det Udom?

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

5.5
Sightseeing
2nd-best month of the year
8.3
Beach & pool
2nd-best month of the year

January 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 January

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

In January, Det Udom sees daytime highs around 31°C and nights near 19°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Det Udom in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 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 January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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
January 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).