Chon Daen weather in May

In May, Chon Daen sees average daytime highs of 34°C and overnight lows near 26°C, with 183 mm of rain across 21.7 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 34°C by the end. The sky is clear or mostly clear about 12% of the time in May, and the air most often feels miserable.

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 Chon Daen's 8th-clearest and 4th-windiest month. For the whole year in context, see Chon Daen's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
183 mm
21.7 wet days
Daylight
12 h 48 min
5:50 AM – 6:35 PM
Cloud cover
76%
8th clearest
Wind
6 km/h
4th windiest
Solar energy
5.54 kWh/m²
Travel score
2.0
out of 10

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 34°C by the end.

A typical May day in Chon Daen 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 32°C and 37°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13526
23526
33526
43526
53526
63526
73526
83526
93526
103526
113526
123526
133426
143426
153426
163426
173426
183426
193426
203426
213426
223426
233426
243426
253426
263426
273426
283426
293426
303426
313426

How May really feels in Chon Daen

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.

Chon Daen 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
Jan32° / 19°101.811.15.3
Feb33° / 21°122.411.54.1
Mar35° / 24°315.611.92.8
Apr36° / 26°5910.212.42.0
May34° / 26°18321.712.72.0
Jun33° / 26°21525.312.92.1
Jul32° / 25°24926.712.92.4
Aug31° / 25°30828.712.52.3
Sep31° / 25°31227.412.12.4
Oct32° / 24°15017.711.63.4
Nov32° / 22°294.211.24.7
Dec31° / 19°81.411.15.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24852
34753
44456
54357
64060
73862
83664
93466
103169
113070
122872
132674
142476
152278
162080
171981
181783
191684
201585
211486
221486
231387
241288
251189
261090
27991
28991
29991
30892
31793

Chance of precipitation in May

Any precipitation

Chon Daen gets around 183 mm of rain over 21.7 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 70% and peaks near 81% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
151
252
354
455
556
658
760
861
963
1065
1167
1269
1371
1472
1573
1674
1775
1876
1976
2077
2178
2278
2378
2479
2579
2679
2780
2880
2980
3081
3181

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
135938
225840
325642
425345
525147
614950
714653
814455
914257
1013960
1113762
1213564
1313366
1413267
1503070
1602872
1702773
1802674
1902575
2002476
2102377
2202278
2302179
2402179
2502080
2602080
2701981
2801882
2901882
3001783
3101684

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 6 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
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 5:57 AM to 5:47 AM, and sunset from 6:31 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:576:31
212.65:566:31
312.65:566:32
412.65:556:32
512.65:556:32
612.65:546:32
712.75:546:33
812.75:536:33
912.75:536:33
1012.75:526:34
1112.75:526:34
1212.75:526:34
1312.75:516:34
1412.75:516:35
1512.75:516:35
1612.85:506:35
1712.85:506:36
1812.85:506:36
1912.85:496:36
2012.85:496:37
2112.85:496:37
2212.85:496:37
2312.85:486:38
2412.85:486:38
2512.85:486:38
2612.85:486:39
2712.95:486:39
2812.95:486:39
2912.95:486:40
3012.95:476:40
3112.95:476:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.54 kWh/m².

For context, solar energy here swings from a low near 4.18 kWh/m² to a high of 6.3 kWh/m² in April across the year — May's 5.54 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
36.0Bright
45.9Bright
55.9Bright
65.8Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.6Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in May

Hazard calendar for Chon Daen

In seasonPeak

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

Chon Daen'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 Chon Daen?

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

2.0
Sightseeing
11th-best month of the year
4.1
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Chon Daen.

What to pack for Chon Daen in May

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

In May, Chon Daen 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 Chon Daen 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 Chon Daen peaks around August 14 at about 13 (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 14UV 13Dec 12UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar11Extreme
Apr10Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Chon Daen 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 Chon Daen is worst in March — around 56 µg/m³ PM2.5 (unhealthy), about 2.5× the cleanest month (June, 23 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModeratePoorMar 1355 µg/m³Jun 2223 µg/m³
PM2.5 (µg/m³)Level
Jan47Poor
Feb52Poor
Mar56Unhealthy
Apr46Poor
May32Moderate
Jun23Moderate
Jul24Moderate
Aug24Moderate
Sep28Moderate
Oct34Moderate
Nov38Poor
Dec42Poor
Location & terrain

Where is Chon Daen?

Chon Daen sits at 16.2°N, 100.9°E, 106 m above sea level, in Thailand. The nearest listed city is Thap Khlo, 28 km away.

Topography around Chon Daen

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

Within 3 km, the terrain around Chon Daen has only modest variations in elevation — a maximum elevation change of 81 m around an average of 107 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,018 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,544 m.

The land around Chon Daen is covered by cropland (49%) and trees (35%) within 3 km, trees (54%) and cropland (37%) within 16 km, and cropland (55%) and trees (41%) within 80 km.

3 km
81 m
16 km
1,018 m
80 km
1,544 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Thap Khlo 28 km · Nong Phai 31 km · Phetchabun 41 km · Taphan Hin 47 km · Bang Mun Nak 54 km · Phichit 61 km · Wichian Buri 65 km · Bang Krathum 74 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 Chon Daen (16.1895°, 100.8596°, elevation 106 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).