Wiset Chaichan weather in April

In April, Wiset Chaichan sees average daytime highs of 37°C and overnight lows near 27°C, with 84 mm of rain across 13.7 wet days and about 12.3 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 37°C through the month. The sky is clear or mostly clear about 34% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of April to 12 h 30 min by month's end. Set against the rest of the year, April is Wiset Chaichan's 6th-clearest and 7th-windiest month. For the whole year in context, see Wiset Chaichan's year-round climate.

Daytime high
37°
1st warmest
Overnight low
27°
11th coldest
Rainfall
84 mm
13.7 wet days
Daylight
12 h 18 min
6:09 AM – 6:29 PM
Cloud cover
56%
6th clearest
Wind
9 km/h
7th windiest
Solar energy
6.23 kWh/m²
Travel score
1.3
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 37°C through the month.

A typical April day in Wiset Chaichan reaches about 37°C in the afternoon and slips back to 27°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 34°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)
13726
23727
33727
43727
53727
63727
73727
83727
93727
103727
113727
123727
133727
143727
153727
163727
173727
183727
193727
203727
213727
223727
233727
243727
253727
263727
273727
283727
293727
303727

How April really feels in Wiset Chaichan

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.

Wiset Chaichan 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
Jan33° / 22°132.811.24.2
Feb35° / 24°143.211.53.2
Mar36° / 26°437.511.92.1
Apr37° / 27°8413.712.31.3
May36° / 27°15421.112.71.4
Jun35° / 27°12921.612.81.6
Jul34° / 27°13422.612.81.9
Aug34° / 26°15722.912.51.9
Sep33° / 26°25325.212.12.0
Oct33° / 25°16819.311.72.8
Nov33° / 24°355.911.33.8
Dec32° / 22°101.711.24.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 21% of April, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26337
36337
46238
56238
66139
76040
85941
95842
105743
115644
125644
135545
145545
155446
165446
175347
185446
195347
205248
215248
225248
235248
245149
255050
265050
274951
284753
294654
304456

Chance of precipitation in April

Any precipitation

Wiset Chaichan gets around 84 mm of rain over 13.7 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 45% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
137
238
338
439
539
640
740
841
941
1041
1142
1242
1342
1442
1543
1643
1744
1845
1946
2047
2148
2249
2350
2451
2551
2652
2753
2854
2955
3056

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11275931
21275832
31275634
40275536
50275437
60275239
70275041
80274942
90274744
100274645
110274546
120264547
130264448
140264448
150264449
160254449
170154450
180144451
190144352
200144352
210134353
220134254
230134254
240134155
250024157
260024058
270023959
280023860
290023761
300023662

Wind in April

Winds average 9 km/h in April.

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

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over April. Sunrise moves from 6:20 AM to 6:01 AM, and sunset from 6:27 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:206:27
212.16:196:27
312.26:186:27
412.26:176:27
512.26:176:27
612.26:166:27
712.26:156:28
812.26:156:28
912.26:146:28
1012.26:136:28
1112.36:126:28
1212.36:126:28
1312.36:116:28
1412.36:106:28
1512.36:106:29
1612.36:096:29
1712.36:086:29
1812.46:086:29
1912.46:076:29
2012.46:076:29
2112.46:066:29
2212.46:056:30
2312.46:056:30
2412.46:046:30
2512.46:046:30
2612.56:036:30
2712.56:026:30
2812.56:026:31
2912.56:016:31
3012.56:016:31

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.23 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.58 kWh/m² to a high of 6.23 kWh/m² in April across the year — April's 6.23 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.0Intense
306.0Intense
Planning a trip in April

Hazard calendar for Wiset Chaichan

In seasonPeak

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

Wiset Chaichan'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 April a good time to visit Wiset Chaichan?

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

1.3
Sightseeing
12th-best month of the year
3.8
Beach & pool
9th-best month of the year

April is a weaker month for outdoor sightseeing in Wiset Chaichan.

What to pack for Wiset Chaichan in April

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

In April, Wiset Chaichan sees daytime highs around 37°C and nights near 27°C. Pack light clothes and sun protection. Worth having: rain gear. About 14 days see rain.

light clothessun protectionrain gear

UV index in Wiset Chaichan in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Wiset Chaichan peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 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 13Nov 23UV 8
UV index (midday)Level
Jan9Very high
Feb9Very high
Mar12Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec8Very high

Air quality in Wiset Chaichan 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 Wiset Chaichan is worst in January — around 83 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (July, 43 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 2382 µg/m³Jul 2443 µg/m³
PM2.5 (µg/m³)Level
Jan83Unhealthy
Feb81Unhealthy
Mar70Unhealthy
Apr64Unhealthy
May54Poor
Jun44Poor
Jul43Poor
Aug43Poor
Sep54Poor
Oct66Unhealthy
Nov67Unhealthy
Dec66Unhealthy
Location & terrain

Where is Wiset Chaichan?

Wiset Chaichan sits at 14.6°N, 100.3°E, 12 m above sea level, in Thailand. The nearest listed city is Phak Hai, 16 km away.

Topography around Wiset Chaichan

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

Within 3 km, the terrain around Wiset Chaichan has only modest variations in elevation — a maximum elevation change of 14 m around an average of 7 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 27 m; within 80 km, large variations in elevation — a maximum elevation change of 636 m.

The land around Wiset Chaichan is covered by cropland (57%) and trees (24%) within 3 km, cropland (66%) within 16 km, and cropland (71%) within 80 km.

3 km
14 m
16 km
27 m
80 km
636 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Phak Hai 16 km · Suphan Buri 27 km · Bang Ban 29 km · Nakhon Luang 33 km · Bang Racham 33 km · Sing Buri 33 km · Ayutthaya 37 km · Lop Buri 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 Wiset Chaichan (14.5952°, 100.3381°, elevation 12 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).