Khon Kaen weather in April

In April, Khon Kaen sees average daytime highs of 36°C and overnight lows near 26°C, with 65 mm of rain across 10.7 wet days and about 12.4 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 37% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of April to 12 h 36 min by month's end. Set against the rest of the year, April is Khon Kaen's 6th-clearest and 10th-windiest month. For the whole year in context, see Khon Kaen's year-round climate.

Daytime high
36°
1st warmest
Overnight low
26°
9th coldest
Rainfall
65 mm
10.7 wet days
Daylight
12 h 24 min
5:58 AM – 6:20 PM
Cloud cover
54%
6th clearest
Wind
7 km/h
10th windiest
Solar energy
6.1 kWh/m²
Travel score
2.0
out of 10

Khon Kaen is city in Khon Kaen province, Thailand.

Air quality
High
PM2.5 34 µg/m³ · 2019
Density
2,488/km²
people per km²
Founded
1935

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 36°C through the month.

A typical April day in Khon Kaen reaches about 36°C in the afternoon and slips back to 26°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 40°C. Set against its neighbours, April runs about 1°C warmer than March and about 1°C warmer than May.

20°25°30°35°40°45°151015202530
Avg high (°C)Avg low (°C)
13625
23625
33625
43625
53625
63625
73625
83625
93626
103626
113626
123626
133626
143626
153626
163626
173626
183626
193626
203626
213626
223626
233626
243626
253626
263626
273626
283626
293626
303626

How April really feels in Khon Kaen

Once humidity and wind are folded in, April averages 30 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
30
30 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Khon Kaen weather by month

How April compares with the rest of the year at a glance. April is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 18°71.611.16.0
Feb33° / 20°112.411.44.5
Mar35° / 24°345.911.92.8
Apr36° / 26°6510.712.42.0
May35° / 26°15220.112.82.0
Jun34° / 26°13419.2132.2
Jul33° / 26°16420.312.92.4
Aug32° / 26°21423.312.62.5
Sep32° / 25°23723.312.12.7
Oct31° / 24°10412.811.64.1
Nov31° / 21°243.511.25.4
Dec30° / 19°51116.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 23% of April, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16733
26733
36832
46733
56733
66733
76634
86733
96634
106535
116436
126436
136337
146337
156238
166139
176040
186040
195842
205842
215743
225644
235644
245446
255446
265347
275149
285050
294951
304852

Chance of precipitation in April

Any precipitation

Khon Kaen gets around 65 mm of rain over 10.7 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 51% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
130
230
330
430
530
630
730
830
931
1031
1131
1231
1332
1432
1533
1634
1735
1836
1937
2038
2140
2241
2342
2444
2545
2646
2747
2849
2950
3051

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the oppressive band about 71% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13631591
23630601
33529621
42528632
52427652
62426662
72425672
82424673
92423683
101323703
111322704
121321714
131320724
141319725
151319725
161218745
171217746
180217756
190216757
200115777
210114778
220114769
2301137610
2401127611
2501127512
2600117514
2700107515
2800107317
290097318
300097120

Wind in April

Winds average 7 km/h in April.

Across April, 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.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over April. Sunrise moves from 6:09 AM to 5:49 AM, and sunset from 6:17 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:096:17
212.26:086:18
312.26:086:18
412.26:076:18
512.26:066:18
612.26:056:18
712.26:046:18
812.26:046:19
912.36:036:19
1012.36:026:19
1112.36:016:19
1212.36:016:19
1312.36:006:19
1412.35:596:20
1512.45:586:20
1612.45:586:20
1712.45:576:20
1812.45:566:20
1912.45:566:21
2012.45:556:21
2112.45:546:21
2212.55:546:21
2312.55:536:21
2412.55:526:22
2512.55:526:22
2612.55:516:22
2712.55:516:22
2812.55:506:23
2912.65:496:23
3012.65:496:23

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.1 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.1 kWh/m² in April across the year — April's 6.1 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Bright
Planning a trip in April

Hazard calendar for Khon Kaen

In seasonPeak

None of Khon Kaen's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Khon Kaen'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 April a good time to visit Khon Kaen?

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

2.0
Sightseeing
11th-best month of the year
4.8
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Khon Kaen.

What to pack for Khon Kaen in April

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

In April, Khon Kaen sees daytime highs around 36°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in Khon Kaen in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 10 (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 Kaen peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 12UV 13Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr10Very high
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Khon Kaen in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Khon Kaen is worst in March — around 56 µg/m³ PM2.5 (unhealthy), about 2.5× the cleanest month (June, 22 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Khon Kaen's WHO annual average of 34 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModerateMar 1555 µg/m³Jun 2222 µg/m³
PM2.5 (µg/m³)Level
Jan37Poor
Feb48Poor
Mar56Unhealthy
Apr43Poor
May31Moderate
Jun22Moderate
Jul23Moderate
Aug24Moderate
Sep29Moderate
Oct33Moderate
Nov31Moderate
Dec29Moderate
Location & terrain

Where is Khon Kaen?

Khon Kaen sits at 16.4°N, 102.8°E, 167 m above sea level, in Thailand. The nearest listed city is Ban Phai, 44 km away.

Topography around Khon Kaen

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

Within 3 km, the terrain around Khon Kaen has only modest variations in elevation — a maximum elevation change of 64 m around an average of 165 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, large variations in elevation — a maximum elevation change of 683 m.

The land around Khon Kaen is covered by artificial surfaces (51%) and trees (35%) within 3 km, cropland (54%) and trees (26%) within 16 km, and cropland (75%) within 80 km.

3 km
64 m
16 km
80 m
80 km
683 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Ban Phai 44 km · Nong Kung Si 55 km · Maha Sarakham 58 km · Kalasin 72 km · Kaeng Khro 72 km · Phu Khiao 76 km · Ban Phan Don 79 km · Chum Phae 79 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 Kaen (16.4467°, 102.833°, elevation 167 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).