Khao Wong weather in May

In May, Khao Wong sees average daytime highs of 33°C and overnight lows near 25°C, with 175 mm of rain across 21.2 wet days and about 12.8 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 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 Khao Wong's 8th-clearest and 11th-windiest month. For the whole year in context, see Khao Wong's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
25°
12th coldest
Rainfall
175 mm
21.2 wet days
Daylight
12 h 48 min
5:37 AM – 6:23 PM
Cloud cover
78%
8th clearest
Wind
7 km/h
11th windiest
Solar energy
5.41 kWh/m²
Travel score
2.5
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 Khao Wong 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
243325
253225
263225
273225
283225
293225
303225
313225

How May really feels in Khao Wong

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
19 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.

Khao Wong 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
Jan29° / 17°51.311.17.1
Feb31° / 19°102.411.45.7
Mar33° / 22°325.511.94.0
Apr34° / 25°6410.712.42.8
May33° / 25°17521.212.82.5
Jun32° / 25°18122.6132.6
Jul31° / 25°2422512.92.8
Aug30° / 25°28327.212.62.7
Sep31° / 24°25523.812.13.0
Oct30° / 23°10011.411.64.6
Nov30° / 20°203.411.26.0
Dec29° / 18°51.2117.3

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 14% of May, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24654
34654
44357
54258
64060
73961
83763
93466
103268
113169
122971
132773
142575
152377
162179
171981
181882
191783
201684
211486
221486
231387
241288
251288
261189
271189
281189
291189
301090
311090

Chance of precipitation in May

Any precipitation

Khao Wong gets around 175 mm of rain over 21.2 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 79% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
152
253
354
455
556
657
758
859
961
1062
1163
1264
1365
1466
1567
1668
1769
1871
1972
2073
2174
2275
2375
2476
2577
2678
2778
2879
2979
3079
3179

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 53% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11107316
21107118
3197119
4196921
5186823
6186625
7176527
8166429
9166231
10156232
11156034
12155836
13145837
14145738
15145540
16135541
17135343
18135145
19125047
20124948
21024751
22024553
23024454
24024256
25024058
26023860
27023563
28013366
29013168
30012970
31012871

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
178calm
188calm
198calm
208calm
218calm
228calm
238calm
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 5:43 AM to 5:34 AM, and sunset from 6:19 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:436:19
212.65:436:19
312.65:426:19
412.65:416:19
512.65:416:20
612.75:406:20
712.75:406:20
812.75:406:21
912.75:396:21
1012.75:396:21
1112.75:386:22
1212.75:386:22
1312.75:386:22
1412.85:376:23
1512.85:376:23
1612.85:376:23
1712.85:366:24
1812.85:366:24
1912.85:366:24
2012.85:356:25
2112.85:356:25
2212.85:356:25
2312.85:356:26
2412.95:356:26
2512.95:346:26
2612.95:346:27
2712.95:346:27
2812.95:346:27
2912.95:346:28
3012.95:346:28
3112.95:346:28

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.41 kWh/m².

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 6.08 kWh/m² in April across the year — May's 5.41 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Khao Wong

In seasonPeak

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

Khao Wong's monsoon runs May–September, 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 Khao Wong?

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 Khao Wong.

What to pack for Khao Wong in May

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

In May, Khao Wong 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 Khao Wong 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 Khao Wong peaks around July 24 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 highJul 24UV 13Dec 13UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr10Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Khao Wong 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 Khao Wong is worst in March — around 50 µg/m³ PM2.5 (poor), about 3.3× the cleanest month (November, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1849 µg/m³Nov 2316 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb32Moderate
Mar50Poor
Apr39Poor
May27Moderate
Jun22Moderate
Jul22Moderate
Aug23Moderate
Sep22Moderate
Oct20Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

Where is Khao Wong?

Khao Wong sits at 16.7°N, 104.1°E, 194 m above sea level, in Thailand. The nearest listed city is Kuchinarai, 18 km away.

Topography around Khao Wong

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

Within 3 km, the terrain around Khao Wong has only modest variations in elevation — a maximum elevation change of 28 m around an average of 185 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 438 m; within 80 km, significant variations in elevation — a maximum elevation change of 535 m.

The land around Khao Wong is covered by cropland (63%) and trees (22%) within 3 km, trees (50%) and cropland (45%) within 16 km, and cropland (54%) and trees (40%) within 80 km.

3 km
28 m
16 km
438 m
80 km
535 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Kuchinarai 18 km · Sakon Nakhon 52 km · Kamalasai 68 km · Kalasin 69 km · Mukdahan 70 km · Savannakhet 73 km · Ban Selaphum 77 km · Warichaphum 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 Khao Wong (16.7001°, 104.0902°, elevation 194 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).