Ubon Ratchathani weather in December

In December, Ubon Ratchathani sees average daytime highs of 30°C and overnight lows near 19°C, with 6 mm of rain across 1.3 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 52% 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 Ubon Ratchathani's 4th-clearest and 1st-windiest month. For the whole year in context, see Ubon Ratchathani's year-round climate.

Daytime high
30°
12th warmest
Overnight low
19°
2nd coldest
Rainfall
6 mm
1.3 wet days
Daylight
11 h 06 min
6:24 AM – 5:30 PM
Cloud cover
42%
4th clearest
Wind
14 km/h
1st windiest
Solar energy
4.76 kWh/m²
Travel score
6.1
out of 10

Ubon Ratchathani is city in Ubon Ratchathani province, Thailand.

Density
4,219/km²
people per km²

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 Ubon Ratchathani reaches about 30°C in the afternoon and slips back to 19°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 about 1°C cooler than November and about 1°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53020
63020
73020
83020
93020
103020
113020
123020
133020
143020
153019
163019
173019
183019
193019
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019
313019

How December really feels in Ubon Ratchathani

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.

Ubon Ratchathani 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°51.411.25.8
Feb33° / 21°101.911.54.5
Mar35° / 24°356.311.93.0
Apr35° / 26°811312.32.2
May34° / 26°18122.412.72.1
Jun33° / 26°19423.312.92.3
Jul32° / 25°23226.312.82.4
Aug31° / 25°2702712.52.5
Sep31° / 25°27325.612.12.6
Oct31° / 24°1241511.73.9
Nov31° / 22°314.711.35.2
Dec30° / 19°61.311.16.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% 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
56832
66832
76832
86733
96733
106832
116832
126832
136832
146931
157030
167030
177129
187228
197228
207426
217426
227426
237525
247525
257624
267723
277723
287723
297723
307723
317723

Chance of precipitation in December

Any precipitation

Ubon Ratchathani gets around 6 mm of rain over 1.3 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 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
25
35
45
55
65
75
85
95
105
115
125
134
144
154
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 35% of days. Sticky, muggy-or-worse air turns up on roughly 45% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1282444201
2292544191
3292644181
42102743171
52102843161
62112943151
73113042140
83123141130
93123241120
103133240110
113143339110
124153338100
13416333790
14517333690
15617333590
16618333480
17719333380
18820333280
19820333170
20921333170
21922333070
22922332960
231022342950
241023342950
251023342940
261023352940
27923352930
28923363030
29822373020
30722373120
31722383120

Wind in December

Winds average 14 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3112light breeze

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 6:16 AM to 6:31 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)
111.26:165:25
211.26:165:25
311.16:175:26
411.16:175:26
511.16:185:26
611.16:185:26
711.16:195:27
811.16:195:27
911.16:205:27
1011.16:215:28
1111.16:215:28
1211.16:225:28
1311.16:225:29
1411.16:235:29
1511.16:235:29
1611.16:245:30
1711.16:245:30
1811.16:255:31
1911.16:255:31
2011.16:265:32
2111.16:265:32
2211.16:275:32
2311.16:275:33
2411.16:285:33
2511.16:285:34
2611.16:295:34
2711.16:295:35
2811.16:295:35
2911.16:305:36
3011.16:305:36
3111.16:315:37

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.76 kWh/m².

For context, solar energy here swings from a low near 4.35 kWh/m² to a high of 6.13 kWh/m² in April across the year — December's 4.76 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
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Ubon Ratchathani

In seasonPeak

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

Ubon Ratchathani'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 Ubon Ratchathani?

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

6.1
Sightseeing
1st-best month of the year
8.4
Beach & pool
1st-best month of the year

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

What to pack for Ubon Ratchathani in December

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

In December, Ubon Ratchathani sees daytime highs around 30°C and nights near 19°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Ubon Ratchathani in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ubon Ratchathani peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 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 12UV 13Dec 10UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar11Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Ubon Ratchathani 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 Ubon Ratchathani 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 Ubon Ratchathani?

Ubon Ratchathani sits at 15.2°N, 104.8°E, 125 m above sea level, in Thailand. The nearest listed city is Warin Chamrap, 5.0 km away.

YasothonPakse

Topography around Ubon Ratchathani

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

Within 3 km, the terrain around Ubon Ratchathani has only modest variations in elevation — a maximum elevation change of 29 m around an average of 120 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 52 m; within 80 km, significant variations in elevation — a maximum elevation change of 458 m.

The land around Ubon Ratchathani is covered by artificial surfaces (47%) and trees (33%) within 3 km, trees (46%) and cropland (36%) within 16 km, and cropland (68%) and trees (26%) within 80 km.

3 km
29 m
16 km
52 m
80 km
458 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Warin Chamrap 5.0 km · Phibun Mangsahan 41 km · Det Udom 44 km · Si Sa Ket 57 km · Kantharalak 70 km · Amnat Charoen 73 km · Yasothon 97 km · Pakse 103 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 Ubon Ratchathani (15.2384°, 104.8487°, elevation 125 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).