Khon Buri weather in May

In May, Khon Buri sees average daytime highs of 33°C and overnight lows near 25°C, with 137 mm of rain across 21 wet days and about 12.7 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 8% of the time in May, and the air most often feels oppressive.

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 Khon Buri's 8th-clearest and 6th-windiest month. For the whole year in context, see Khon Buri's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
25°
12th coldest
Rainfall
137 mm
21 wet days
Daylight
12 h 42 min
5:47 AM – 6:27 PM
Cloud cover
80%
8th clearest
Wind
8 km/h
6th windiest
Solar energy
5.49 kWh/m²
Travel score
2.5
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical May day in Khon Buri reaches about 33°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°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)
13425
23325
33325
43325
53325
63325
73325
83325
93325
103325
113325
123325
133325
143325
153325
163325
173325
183325
193325
203325
213325
223325
233325
243325
253325
263325
273325
283325
293325
303325
313325

How May really feels in Khon Buri

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
8 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.

Khon Buri weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 18°112.111.26.4
Feb32° / 20°16311.55.1
Mar33° / 23°579.611.93.5
Apr34° / 24°941512.32.7
May33° / 25°1372112.72.5
Jun32° / 25°11520.512.82.7
Jul31° / 24°12822.212.82.9
Aug31° / 24°14723.312.52.9
Sep31° / 24°22124.812.12.9
Oct30° / 23°15117.311.74.2
Nov29° / 21°335.711.35.8
Dec29° / 18°71.811.26.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 9% of May, with mostly cloudy or overcast conditions the remaining 82%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23565
33565
43367
53268
63070
72872
82773
92575
102377
112179
122179
131882
141684
151585
161486
171288
181288
191090
201090
21991
22991
23892
24892
25892
26892
27892
28892
29892
30892
31793

Chance of precipitation in May

Any precipitation

Khon Buri gets around 137 mm of rain over 21 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 68% and peaks near 69% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
163
264
364
465
565
666
766
866
967
1067
1168
1268
1369
1469
1569
1669
1769
1869
1969
2069
2169
2269
2369
2469
2569
2669
2769
2869
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 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
136829
236730
336631
426632
526533
626434
716435
816336
916336
1016237
1116237
1216237
1316336
1416336
1506436
1606535
1706535
1806634
1906634
2006733
2106733
2206733
2306832
2406832
2506832
2606931
2706931
2806832
2906832
3006832
3106832

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 5:53 AM to 5:45 AM, and sunset from 6:24 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:536:24
212.55:526:24
312.55:526:24
412.55:516:24
512.65:516:24
612.65:516:25
712.65:506:25
812.65:506:25
912.65:496:25
1012.65:496:26
1112.65:496:26
1212.65:486:26
1312.65:486:27
1412.75:486:27
1512.75:476:27
1612.75:476:27
1712.75:476:28
1812.75:476:28
1912.75:466:28
2012.75:466:29
2112.75:466:29
2212.75:466:29
2312.75:466:30
2412.75:456:30
2512.75:456:30
2612.85:456:30
2712.85:456:31
2812.85:456:31
2912.85:456:31
3012.85:456:32
3112.85:456:32

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.49 kWh/m².

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 6 kWh/m² in April across the year — May's 5.49 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
145.5Bright
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
295.4Bright
305.4Bright
315.4Bright
Planning a trip in May

Hazard calendar for Khon Buri

In seasonPeak

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

Khon Buri's rainy season runs May–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Khon Buri?

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

2.5
Sightseeing
12th-best month of the year
4.5
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Khon Buri.

What to pack for Khon Buri in May

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

In May, Khon Buri sees daytime highs around 33°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Khon Buri 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 Khon Buri peaks around August 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 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 15UV 14Nov 22UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Khon Buri 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 Khon Buri is worst in March — around 42 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (December, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1141 µg/m³Dec 1020 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb41Poor
Mar42Poor
Apr33Moderate
May25Moderate
Jun22Moderate
Jul23Moderate
Aug23Moderate
Sep23Moderate
Oct24Moderate
Nov21Moderate
Dec20Moderate
Location & terrain

Where is Khon Buri?

Khon Buri sits at 14.5°N, 102.2°E, 218 m above sea level, in Thailand. The nearest listed city is Chok Chai, 24 km away.

Topography around Khon Buri

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

Within 3 km, the terrain around Khon Buri has only modest variations in elevation — a maximum elevation change of 41 m around an average of 207 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 290 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,265 m.

The land around Khon Buri is covered by cropland (61%) and trees (25%) within 3 km, cropland (65%) and trees (25%) within 16 km, and cropland (51%) and trees (44%) within 80 km.

3 km
41 m
16 km
290 m
80 km
1,265 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Chok Chai 24 km · Nakhon Ratchasima 52 km · Nang Rong 60 km · Ban Huai Thalaeng 67 km · Na Di 68 km · Amphoe Sikhiu 71 km · Non Sung 73 km · Sa Kaeo 81 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 Khon Buri (14.5254°, 102.2459°, elevation 218 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).