Det Udom weather in May

In May, Det Udom sees average daytime highs of 34°C and overnight lows near 26°C, with 175 mm of rain across 22.4 wet days and about 12.7 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 35°C in the first days to 33°C by the end. The sky is clear or mostly clear about 9% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 48 min by month's end. Set against the rest of the year, May is Det Udom's 8th-clearest and 10th-windiest month. For the whole year in context, see Det Udom's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
175 mm
22.4 wet days
Daylight
12 h 42 min
5:35 AM – 6:17 PM
Cloud cover
80%
8th clearest
Wind
7 km/h
10th windiest
Solar energy
5.46 kWh/m²
Travel score
2.1
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 May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 35°C in the first days to 33°C by the end.

A typical May day in Det Udom reaches about 34°C in the afternoon and slips back to 26°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 36°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13526
23526
33526
43526
53526
63526
73526
83426
93426
103426
113426
123426
133426
143426
153426
163426
173426
183426
193426
203426
213426
223426
233326
243326
253326
263326
273326
283326
293326
303326
313326

How May really feels in Det Udom

Once humidity and wind are folded in, May 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
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Det Udom weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 5th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24060
33862
43763
53565
63367
73070
82971
92773
102575
112377
122179
131981
141882
151684
161585
171585
181387
191387
201288
211288
221189
231189
241090
251090
261090
271090
281090
291090
301090
311090

Chance of precipitation in May

Any precipitation

Det Udom gets around 175 mm of rain over 22.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 72% and peaks near 78% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
157
259
360
461
562
664
765
866
967
1069
1170
1271
1372
1473
1574
1675
1776
1876
1977
2077
2178
2278
2378
2478
2577
2677
2777
2877
2977
3077
3177

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 65% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1155638
2045640
3045343
4045145
5034947
6034750
7024553
8024355
9014257
10014059
11013861
12013762
13013564
14013465
15003367
16003169
17003070
18002971
19002872
20002773
21002674
22002575
23002575
24002476
25002377
26002278
27002179
28002080
29001981
30001882
31001783

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 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
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:41 AM to 5:33 AM, and sunset from 6:13 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:416:13
212.55:416:13
312.65:406:13
412.65:406:13
512.65:396:14
612.65:396:14
712.65:386:14
812.65:386:14
912.65:386:15
1012.65:376:15
1112.65:376:15
1212.75:366:15
1312.75:366:16
1412.75:366:16
1512.75:366:16
1612.75:356:17
1712.75:356:17
1812.75:356:17
1912.75:346:18
2012.75:346:18
2112.75:346:18
2212.75:346:18
2312.85:346:19
2412.85:336:19
2512.85:336:19
2612.85:336:20
2712.85:336:20
2812.85:336:20
2912.85:336:21
3012.85:336:21
3112.85:336:21

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.46 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 — May's 5.46 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in May

Hazard calendar for Det Udom

In seasonPeak

In May, Det Udom sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

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 May a good time to visit Det Udom?

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

2.1
Sightseeing
12th-best month of the year
4.1
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Det Udom.

What to pack for Det Udom in May

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

In May, Det Udom sees daytime highs around 34°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Det Udom in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (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 May

GoodModeratePoorUnhealthyVery unhealthy

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