Chom Bueng weather in May

In May, Chom Bueng sees average daytime highs of 33°C and overnight lows near 25°C, with 147 mm of rain across 22.9 wet days and about 12.6 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 32°C by the end. The sky is clear or mostly clear about 6% 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 42 min by month's end. Set against the rest of the year, May is Chom Bueng's 8th-clearest and 6th-windiest month. For the whole year in context, see Chom Bueng's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
25°
12th coldest
Rainfall
147 mm
22.9 wet days
Daylight
12 h 36 min
5:59 AM – 6:37 PM
Cloud cover
81%
8th clearest
Wind
7 km/h
6th windiest
Solar energy
5.31 kWh/m²
Travel score
2.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 32°C by the end.

A typical May day in Chom Bueng 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 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)
13425
23425
33425
43425
53425
63425
73425
83425
93325
103325
113325
123325
133325
143325
153325
163325
173325
183325
193325
203325
213325
223325
233325
243225
253225
263225
273225
283225
293225
303225
313225

How May really feels in Chom Bueng

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.

Chom Bueng 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
Jan30° / 20°152.911.36.0
Feb32° / 21°153.211.54.8
Mar34° / 23°478.711.93.4
Apr34° / 24°8814.912.32.4
May33° / 25°14722.912.62.3
Jun32° / 25°13121.512.82.8
Jul31° / 24°17123.412.73.0
Aug31° / 24°17924.212.53.0
Sep31° / 24°21625.612.12.8
Oct30° / 23°19522.611.73.5
Nov30° / 22°477.611.45.4
Dec29° / 20°122.511.26.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% 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 83%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23565
33367
43268
53070
62971
72773
82575
92575
102278
112080
121981
131882
141783
151585
161387
171387
181288
191189
201090
211090
22991
23991
24892
25892
26892
27892
28892
29793
30694
31694

Chance of precipitation in May

Any precipitation

Chom Bueng gets around 147 mm of rain over 22.9 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 74% 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 (%)
164
265
366
468
569
670
770
871
972
1073
1173
1274
1375
1475
1576
1676
1776
1876
1977
2077
2176
2276
2376
2476
2576
2676
2777
2877
2977
3078
3178

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 74% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
167420
257421
357322
447323
547224
637225
737225
827226
927226
1027226
1117326
1217326
1317326
1417326
1517326
1617425
1717425
1807525
1907525
2007624
2107624
2207624
2307624
2407624
2507624
2607624
2707723
2807723
2907723
3007723
3107822

Wind in May

Winds average 7 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
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 6:04 AM to 5:57 AM, and sunset from 6:33 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:046:33
212.56:046:33
312.56:046:34
412.56:036:34
512.56:036:34
612.56:026:34
712.56:026:34
812.66:026:35
912.66:016:35
1012.66:016:35
1112.66:006:35
1212.66:006:36
1312.66:006:36
1412.66:006:36
1512.65:596:36
1612.65:596:37
1712.65:596:37
1812.65:596:37
1912.75:586:38
2012.75:586:38
2112.75:586:38
2212.75:586:38
2312.75:586:39
2412.75:576:39
2512.75:576:39
2612.75:576:40
2712.75:576:40
2812.75:576:40
2912.75:576:41
3012.75:576:41
3112.75:576:41

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.31 kWh/m².

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 6.06 kWh/m² in April across the year — May's 5.31 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.6Bright
65.6Bright
75.6Bright
85.5Bright
95.5Bright
105.5Bright
115.4Bright
125.4Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Chom Bueng

In seasonPeak

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

Chom Bueng'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 Chom Bueng?

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

2.3
Sightseeing
12th-best month of the year
4.2
Beach & pool
11th-best month of the year

May is a weaker month for outdoor sightseeing in Chom Bueng.

What to pack for Chom Bueng in May

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

In May, Chom Bueng sees daytime highs around 33°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Chom Bueng in May

The nearest coast averages about 31°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 64 km away) is warmest in May at about 31°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Chom Bueng 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 Chom Bueng peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 16UV 13Jan 1UV 9
UV index (midday)Level
Jan9Very high
Feb9Very high
Mar13Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Chom Bueng 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 Chom Bueng is worst in February — around 61 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (August, 24 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorFeb 1861 µg/m³Aug 1024 µg/m³
PM2.5 (µg/m³)Level
Jan58Unhealthy
Feb61Unhealthy
Mar60Unhealthy
Apr47Poor
May33Moderate
Jun24Moderate
Jul24Moderate
Aug24Moderate
Sep29Moderate
Oct46Poor
Nov48Poor
Dec48Poor
Location & terrain

Where is Chom Bueng?

Chom Bueng sits at 13.6°N, 99.6°E, 89 m above sea level, in Thailand. The nearest listed city is Ratchaburi, 26 km away.

Topography around Chom Bueng

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

Within 3 km, the terrain around Chom Bueng has only modest variations in elevation — a maximum elevation change of 90 m around an average of 88 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 420 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,306 m.

The land around Chom Bueng is covered by cropland (41%) and trees (36%) within 3 km, cropland (43%) and trees (37%) within 16 km, and trees (57%) and cropland (25%) within 80 km.

3 km
90 m
16 km
420 m
80 km
1,306 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Ratchaburi 26 km · Photharam 29 km · Ban I Chang 34 km · Tha Maka 36 km · Bang Phae 37 km · Ban Pong 38 km · Tha Muang 38 km · Damnoen Saduak 41 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 Chom Bueng (13.62°, 99.5917°, elevation 89 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).