Chaiyaphum weather in May

In May, Chaiyaphum sees average daytime highs of 34°C and overnight lows near 26°C, with 153 mm of rain across 20.5 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 34°C through the month. The sky is clear or mostly clear about 11% 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 Chaiyaphum's 8th-clearest and 11th-windiest month. For the whole year in context, see Chaiyaphum's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
153 mm
20.5 wet days
Daylight
12 h 42 min
5:46 AM – 6:30 PM
Cloud cover
77%
8th clearest
Wind
7 km/h
11th windiest
Solar energy
5.62 kWh/m²
Travel score
2.1
out of 10

Chaiyaphum is town in Chaiyaphum province, Thailand.

Density
1,896/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical May day in Chaiyaphum reaches about 34°C in the afternoon and slips back to 26°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 37°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
83526
93426
103426
113426
123426
133426
143426
153426
163426
173426
183426
193426
203426
213426
223426
233426
243426
253426
263426
273426
283426
293426
303426
313426

How May really feels in Chaiyaphum

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.

Chaiyaphum 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
Jan31° / 19°61.511.25.9
Feb33° / 21°91.811.54.5
Mar35° / 23°326.111.92.9
Apr36° / 25°641112.32.2
May34° / 26°15320.512.72.1
Jun33° / 26°13519.512.92.4
Jul32° / 25°15220.912.82.7
Aug32° / 25°18623.512.52.7
Sep31° / 25°23824.712.12.6
Oct31° / 24°12614.511.64.0
Nov31° / 21°243.511.35.4
Dec30° / 19°50.911.16.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 77%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24456
34456
44159
54060
63862
73664
83367
93169
102971
112872
122674
132476
142377
152179
162080
171882
181783
191684
201684
211486
221486
231387
241387
251387
261387
271387
281189
291189
301090
311090

Chance of precipitation in May

Any precipitation

Chaiyaphum gets around 153 mm of rain over 20.5 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 66% and peaks near 70% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
154
255
357
459
560
662
763
864
966
1067
1168
1268
1369
1469
1570
1670
1769
1869
1969
2068
2168
2268
2368
2468
2568
2668
2768
2868
2968
3068
3168

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 57% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
177221
277023
366826
466628
556530
656332
746234
846036
935938
1035740
1125741
1225642
1325543
1425444
1515544
1615544
1715445
1815445
1915445
2015445
2115346
2205446
2305446
2405446
2505347
2605347
2705347
2805248
2905248
3005248
3105248

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
227calm
237calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 6:26 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:526:26
212.65:526:26
312.65:516:26
412.65:516:27
512.65:506:27
612.65:506:27
712.65:496:27
812.65:496:28
912.75:496:28
1012.75:486:28
1112.75:486:29
1212.75:476:29
1312.75:476:29
1412.75:476:30
1512.75:466:30
1612.75:466:30
1712.75:466:30
1812.85:466:31
1912.85:456:31
2012.85:456:31
2112.85:456:32
2212.85:456:32
2312.85:446:32
2412.85:446:33
2512.85:446:33
2612.85:446:33
2712.85:446:34
2812.85:446:34
2912.85:446:34
3012.95:436:35
3112.95:436:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.62 kWh/m².

For context, solar energy here swings from a low near 4.42 kWh/m² to a high of 6.19 kWh/m² in April across the year — May's 5.62 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
35.9Bright
45.9Bright
55.9Bright
65.8Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.7Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Chaiyaphum

In seasonPeak

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

Chaiyaphum'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 Chaiyaphum?

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

May is a weaker month for outdoor sightseeing in Chaiyaphum.

What to pack for Chaiyaphum in May

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

In May, Chaiyaphum sees daytime highs around 34°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Chaiyaphum 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 Chaiyaphum peaks around August 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 13Dec 13UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar11Extreme
Apr11Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Chaiyaphum 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 Chaiyaphum is worst in March — around 48 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (June, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1547 µg/m³Jun 2221 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb42Poor
Mar48Poor
Apr37Poor
May28Moderate
Jun21Moderate
Jul21Moderate
Aug22Moderate
Sep25Moderate
Oct27Moderate
Nov24Moderate
Dec22Moderate
Location & terrain

Where is Chaiyaphum?

Chaiyaphum sits at 15.8°N, 102.0°E, 188 m above sea level, in Thailand. The nearest listed city is Kaeng Khro, 41 km away.

Topography around Chaiyaphum

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

Within 3 km, the terrain around Chaiyaphum has only modest variations in elevation — a maximum elevation change of 14 m around an average of 185 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 204 m; within 80 km, large variations in elevation — a maximum elevation change of 1,093 m.

The land around Chaiyaphum is covered by cropland (40%), artificial surfaces (30%) and trees (22%) within 3 km, cropland (70%) within 16 km, and cropland (70%) and trees (24%) within 80 km.

3 km
14 m
16 km
204 m
80 km
1,093 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Kaeng Khro 41 km · Bua Yai 49 km · Kaset Sombun 53 km · Phu Khiao 64 km · Dan Khun Thot 72 km · Non Sung 74 km · Ban Phai 80 km · Chum Phae 82 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 Chaiyaphum (15.8105°, 102.0288°, elevation 188 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).