Luang Namtha weather in April

In April, Luang Namtha sees average daytime highs of 31°C and overnight lows near 19°C, with 100 mm of rain across 12.2 wet days and about 12.5 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 49% of the time in April, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of April to 12 h 42 min by month's end. Set against the rest of the year, April is Luang Namtha's 6th-clearest and 5th-windiest month. For the whole year in context, see Luang Namtha's year-round climate.

Daytime high
31°
1st warmest
Overnight low
19°
6th coldest
Rainfall
100 mm
12.2 wet days
Daylight
12 h 30 min
6:00 AM – 6:29 PM
Cloud cover
46%
6th clearest
Wind
6 km/h
5th windiest
Solar energy
6 kWh/m²
Travel score
4.6
out of 10

Luang Namtha is city in Laos.

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 31°C through the month.

A typical April day in Luang Namtha reaches about 31°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, April runs about 1°C warmer than March and on par with May.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13018
23018
33018
43018
53018
63018
73019
83119
93119
103119
113119
123119
133119
143119
153119
163119
173120
183120
193120
203120
213120
223120
233120
243120
253120
263120
273120
283120
293120
303121

How April really feels in Luang Namtha

Once humidity and wind are folded in, April averages 12 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
12
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.

Luang Namtha weather by month

How April compares with the rest of the year at a glance. April is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 12°314.410.98.2
Feb27° / 13°183.411.37.8
Mar29° / 16°476.911.96.0
Apr31° / 19°10012.212.54.6
May30° / 22°17621133.6
Jun30° / 23°19524.313.23.1
Jul29° / 23°30427.713.13.1
Aug29° / 22°3252812.73.2
Sep29° / 22°19322.112.13.9
Oct28° / 20°8614.611.55.6
Nov26° / 16°426.8117.4
Dec24° / 13°284.710.88.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% 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 30%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17426
27426
37426
47426
57426
67426
77426
87426
97327
107327
117228
127228
137228
147129
157129
167129
177030
186931
196931
206832
216832
226832
236733
246733
256634
266535
276436
286337
296238
306139

Chance of precipitation in April

Any precipitation

Luang Namtha gets around 100 mm of rain over 12.2 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 41% and peaks near 54% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
135
236
336
436
537
637
737
837
937
1037
1137
1237
1337
1437
1537
1638
1738
1839
1939
2040
2141
2243
2344
2445
2547
2648
2750
2852
2953
3054

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the muggy band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 54% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
162344270
252244290
352144310
441944330
531844350
631743370
721643390
821542410
921441430
1011341450
1111240470
1211140480
1311039501
141939501
150838531
160738541
170637561
180536581
190535591
200434611
210333631
220332632
230231652
240229672
250228682
260226702
270125713
280123733
290121744
300120754

Wind in April

Winds average 6 km/h in April.

Across April, daily wind ranges from about 6 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
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 12 min at the start of April to 12 h 42 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 6:14 AM to 5:50 AM, and sunset from 6:24 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:146:24
212.26:136:25
312.26:126:25
412.26:116:25
512.36:106:26
612.36:096:26
712.36:086:26
812.36:076:27
912.36:066:27
1012.46:056:27
1112.46:056:27
1212.46:046:28
1312.46:036:28
1412.46:026:28
1512.56:016:29
1612.56:006:29
1712.55:596:29
1812.55:596:30
1912.55:586:30
2012.65:576:30
2112.65:566:31
2212.65:556:31
2312.65:556:31
2412.65:546:32
2512.75:536:32
2612.75:526:32
2712.75:526:33
2812.75:516:33
2912.75:506:34
3012.75:506:34

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.73 kWh/m² to a high of 6 kWh/m² in April across the year — April's 6 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
86.0Intense
96.0Intense
106.0Intense
116.0Intense
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Bright
226.0Bright
236.0Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.8Bright
305.8Bright
Planning a trip in April

Hazard calendar for Luang Namtha

In seasonPeak

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

Luang Namtha'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 Luang Namtha?

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

4.6
Sightseeing
7th-best month of the year
6.5
Beach & pool
6th-best month of the year

April is a reasonable time to visit Luang Namtha for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Luang Namtha in April

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

In April, Luang Namtha sees daytime highs around 31°C and nights near 19°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Luang Namtha in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Luang Namtha peaks around June 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highVery highExtremeVery highHighJun 22UV 13Dec 19UV 7
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar10Extreme
Apr9Very high
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Luang Namtha 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 Luang Namtha is worst in April — around 445 µg/m³ PM2.5 (very unhealthy), about 55.0× the cleanest month (November, 8 µg/m³).

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

0306090120150180210240270300330360390420JanFebMarAprMayJunJulAugSepOctNovDecModerateVery unhealthyGoodApr 14414 µg/m³Nov 98 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb30Moderate
Mar249Very unhealthy
Apr445Very unhealthy
May64Unhealthy
Jun11Good
Jul9Good
Aug9Good
Sep8Good
Oct8Good
Nov8Good
Dec10Good
Location & terrain

Where is Luang Namtha?

Luang Namtha sits at 20.9°N, 101.4°E, 0 m above sea level, in Laos. The nearest listed city is Muang Sing, 38 km away.

Muang XayMöng YawngBan HouakhouaNong KhiawLuang PrabangBan KhoanMöng La

Topography around Luang Namtha

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

Within 3 km, the terrain around Luang Namtha has only modest variations in elevation — a maximum elevation change of 92 m around an average of 557 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 967 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,643 m.

The land around Luang Namtha is covered by cropland (53%) and trees (33%) within 3 km, trees (90%) within 16 km, and trees (90%) within 80 km.

3 km
92 m
16 km
967 m
80 km
1,643 m
treesgrasslandcroplandartificial surfaces
April weather nearby: Muang Sing 38 km · Muang Xay 67 km · Möng Yawng 111 km · Ban Houakhoua 126 km · Nong Khiaw 133 km · Luang Prabang 141 km · Ban Khoan 152 km · Möng La 165 km

Laos travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C / E / F
230 V · 50 Hz
Prices
≈ 23% of US
price level, 2025
GDP per capita
$2,325
2025
Happiness
5.5 / 10
World Happiness, 2025
Safe drinking water
35%
of population, 2024
Road deaths
17.9
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 461
Religion
Buddhist 65%none 31%other/not stated 2%Christian 2%

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 Luang Namtha (20.9486°, 101.4019°, elevation 0 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).