Loei weather in April

In April, Loei sees average daytime highs of 34°C and overnight lows near 23°C, with 88 mm of rain across 14.8 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 34°C through the month. The sky is clear or mostly clear about 38% 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 Loei's 6th-clearest and 5th-windiest month. For the whole year in context, see Loei's year-round climate.

Daytime high
34°
1st warmest
Overnight low
23°
7th coldest
Rainfall
88 mm
14.8 wet days
Daylight
12 h 24 min
6:01 AM – 6:25 PM
Cloud cover
53%
6th clearest
Wind
6 km/h
5th windiest
Solar energy
5.97 kWh/m²
Travel score
2.8
out of 10

Loei is town in Loei province, Thailand.

Air quality
Elevated
PM2.5 25 µg/m³ · 2019

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 34°C through the month.

A typical April day in Loei reaches about 34°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 37°C. Set against its neighbours, April runs on par with March and about 1°C warmer than May.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13322
23422
33422
43423
53423
63423
73423
83423
93423
103423
113423
123423
133423
143423
153423
163423
173424
183424
193424
203424
213424
223424
233424
243424
253424
263424
273424
283424
293424
303324

How April really feels in Loei

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
heat index over the day's high
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.

Loei 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
Jan28° / 16°121.911.17.4
Feb31° / 18°152.811.45.7
Mar33° / 21°477.811.93.8
Apr34° / 23°8814.812.42.8
May33° / 24°19823.612.82.4
Jun32° / 25°16820.8132.7
Jul31° / 25°18822.212.92.9
Aug31° / 24°24924.812.62.8
Sep31° / 24°24124.112.13.0
Oct30° / 22°11313.711.64.6
Nov29° / 19°243.411.26.6
Dec27° / 17°101.6118.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 39%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16931
26832
36931
46931
56931
66931
76733
86733
96634
106535
116436
126436
136337
146238
156238
166139
176040
185941
195941
205842
215743
225743
235644
245644
255545
265347
275248
285149
295050
304852

Chance of precipitation in April

Any precipitation

Loei gets around 88 mm of rain over 14.8 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 49% and peaks near 66% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
137
238
338
439
539
640
740
841
942
1042
1143
1244
1344
1445
1546
1647
1749
1850
1952
2054
2155
2257
2358
2459
2561
2662
2763
2864
2965
3066

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 68% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
131142431
231041451
32940471
42839501
52738521
62637541
71636561
81534582
91533592
101431622
111430632
121329652
131328662
140327682
150326692
160225712
170224722
180223732
190221752
200220762
210219772
220118801
230117802
240116812
250115822
260114832
270113842
280112852
290111853
300110863

Wind in April

Winds average 6 km/h in April.

Across April, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
255calm
265calm
275calm
285calm
295calm
305calm

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 6:13 AM to 5:52 AM, and sunset from 6:22 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:136:22
212.26:126:22
312.26:126:23
412.26:116:23
512.26:106:23
612.26:096:23
712.26:086:23
812.36:086:24
912.36:076:24
1012.36:066:24
1112.36:056:24
1212.36:046:24
1312.36:046:25
1412.46:036:25
1512.46:026:25
1612.46:016:25
1712.46:016:25
1812.46:006:26
1912.45:596:26
2012.55:596:26
2112.55:586:26
2212.55:576:27
2312.55:576:27
2412.55:566:27
2512.55:556:27
2612.65:556:28
2712.65:546:28
2812.65:536:28
2912.65:536:28
3012.65:526:29

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.97 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.13 kWh/m² to a high of 5.97 kWh/m² in April across the year — April's 5.97 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
46.0Bright
56.0Bright
66.0Bright
76.0Bright
86.0Bright
96.0Intense
106.0Intense
116.0Intense
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.0Bright
186.0Bright
196.0Bright
206.0Bright
216.0Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in April

Hazard calendar for Loei

In seasonPeak

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

Loei'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 April a good time to visit Loei?

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

2.8
Sightseeing
9th-best month of the year
5.4
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Loei.

What to pack for Loei in April

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

In April, Loei sees daytime highs around 34°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Loei 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 Loei peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 15UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr11Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Loei 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 Loei is worst in March — around 50 µg/m³ PM2.5 (poor), about 3.1× the cleanest month (July, 16 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Loei's WHO annual average of 25 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1849 µg/m³Jul 1316 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb36Poor
Mar50Poor
Apr40Poor
May23Moderate
Jun16Moderate
Jul16Moderate
Aug17Moderate
Sep18Moderate
Oct20Moderate
Nov19Moderate
Dec20Moderate
Location & terrain

Where is Loei?

Loei sits at 17.5°N, 101.7°E, 244 m above sea level, in Thailand. The nearest listed city is Wang Saphung, 22 km away.

Lom Sak

Topography around Loei

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

Within 3 km, the terrain around Loei has significant variations in elevation — a maximum elevation change of 274 m around an average of 256 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 518 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,810 m.

The land around Loei is covered by trees (59%) and artificial surfaces (25%) within 3 km, trees (76%) within 16 km, and trees (65%) and cropland (24%) within 80 km.

3 km
274 m
16 km
518 m
80 km
1,810 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Wang Saphung 22 km · Erawan 32 km · Na Klang 53 km · Nam Som 58 km · Phu Kradueng 69 km · Nong Bua Lamphu 82 km · Kut Chap 89 km · Lom Sak 94 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 Loei (17.4905°, 101.7275°, elevation 244 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).