Kaset Sombun weather in May

In May, Kaset Sombun sees average daytime highs of 32°C and overnight lows near 24°C, with 189 mm of rain across 23.7 wet days and about 12.7 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 10% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Kaset Sombun's 8th-clearest and 10th-windiest month. For the whole year in context, see Kaset Sombun's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
24°
11th coldest
Rainfall
189 mm
23.7 wet days
Daylight
12 h 48 min
5:46 AM – 6:31 PM
Cloud cover
78%
8th clearest
Wind
6 km/h
10th windiest
Solar energy
5.48 kWh/m²
Travel score
2.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Kaset Sombun reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, May runs about 1°C cooler than April and on par with June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13324
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How May really feels in Kaset Sombun

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
heat index over the day's high
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.

Kaset Sombun weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 17°112.411.17.3
Feb31° / 19°163.411.55.7
Mar33° / 22°548.611.94.1
Apr33° / 23°10415.712.43.1
May32° / 24°18923.712.72.7
Jun31° / 24°14920.9132.9
Jul31° / 24°17623.912.93.0
Aug30° / 24°22525.312.52.9
Sep30° / 24°2742612.13.0
Oct29° / 22°1401611.64.6
Nov28° / 20°284.511.26.7
Dec27° / 17°71.3118.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% 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 79%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24060
34060
43862
53664
63466
73367
83169
92872
102773
112575
122377
132377
142179
151882
161882
171684
181585
191486
201486
211288
221189
231189
241189
251189
261090
271090
28892
29892
30793
31892

Chance of precipitation in May

Any precipitation

Kaset Sombun gets around 189 mm of rain over 23.7 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 76% and peaks near 79% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
170
271
372
473
573
674
775
876
976
1077
1178
1278
1378
1479
1579
1679
1778
1878
1978
2077
2177
2277
2377
2477
2577
2677
2777
2877
2977
3077
3177

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
178211
268212
368113
458114
558015
647917
747818
837819
937720
1027721
1127622
1227523
1327523
1417623
1517524
1617623
1717623
1817623
1917623
2017722
2107822
2207822
2307921
2407921
2507921
2607921
2707921
2807921
2907921
3007921
3107921

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 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 5:52 AM to 5:43 AM, and sunset from 6:27 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:526:27
212.65:526:27
312.65:516:27
412.65:516:28
512.65:506:28
612.65:506:28
712.75:496:28
812.75:496:29
912.75:486:29
1012.75:486:29
1112.75:476:30
1212.75:476:30
1312.75:476:30
1412.75:466:31
1512.75:466:31
1612.85:466:31
1712.85:456:31
1812.85:456:32
1912.85:456:32
2012.85:456:32
2112.85:446:33
2212.85:446:33
2312.85:446:34
2412.85:446:34
2512.85:446:34
2612.95:436:35
2712.95:436:35
2812.95:436:35
2912.95:436:36
3012.95:436:36
3112.95:436:36

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.48 kWh/m².

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 6.03 kWh/m² in April across the year — May's 5.48 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Hazard calendar for Kaset Sombun

In seasonPeak

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

Kaset Sombun'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 Kaset Sombun?

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

2.7
Sightseeing
12th-best month of the year
4.3
Beach & pool
10th-best month of the year

May is a weaker month for outdoor sightseeing in Kaset Sombun.

What to pack for Kaset Sombun in May

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

In May, Kaset Sombun sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Kaset Sombun in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kaset Sombun peaks around August 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 15UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr10Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov9Very high
Dec8Very high

Air quality in Kaset Sombun 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 Kaset Sombun is worst in March — around 51 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (June, 19 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1550 µg/m³Jun 2319 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb45Poor
Mar51Poor
Apr41Poor
May27Moderate
Jun19Moderate
Jul19Moderate
Aug20Moderate
Sep21Moderate
Oct24Moderate
Nov22Moderate
Dec23Moderate
Location & terrain

Where is Kaset Sombun?

Kaset Sombun sits at 16.3°N, 102.0°E, 234 m above sea level, in Thailand. The nearest listed city is Phu Khiao, 21 km away.

Bua Yai

Topography around Kaset Sombun

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

Within 3 km, the terrain around Kaset Sombun has only modest variations in elevation — a maximum elevation change of 42 m around an average of 232 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,003 m; within 80 km, large variations in elevation — a maximum elevation change of 1,195 m.

The land around Kaset Sombun is covered by cropland (64%) and trees (22%) within 3 km, trees (47%) and cropland (44%) within 16 km, and cropland (50%) and trees (44%) within 80 km.

3 km
42 m
16 km
1,003 m
80 km
1,195 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Phu Khiao 21 km · Chum Phae 33 km · Kaeng Khro 38 km · Chaiyaphum 53 km · Phu Kradueng 68 km · Phetchabun 86 km · Ban Phai 87 km · Bua Yai 92 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 Kaset Sombun (16.2805°, 101.9542°, elevation 234 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).