Thị Trấn Thuận Châu weather in April

In April, Thị Trấn Thuận Châu sees average daytime highs of 29°C and overnight lows near 20°C, with 112 mm of rain across 15.5 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 28°C in the first days to 30°C by the end. The sky is clear or mostly clear about 36% 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 48 min by month's end. Set against the rest of the year, April is Thị Trấn Thuận Châu's 5th-clearest and 5th-windiest month. For the whole year in context, see Thị Trấn Thuận Châu's year-round climate.

Daytime high
29°
5th warmest
Overnight low
20°
6th coldest
Rainfall
112 mm
15.5 wet days
Daylight
12 h 30 min
5:51 AM – 6:20 PM
Cloud cover
54%
5th clearest
Wind
4 km/h
5th windiest
Solar energy
5.21 kWh/m²
Travel score
4.8
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 28°C in the first days to 30°C by the end.

A typical April day in Thị Trấn Thuận Châu reaches about 29°C in the afternoon and slips back to 20°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, April runs about 2°C warmer than March and about 1°C cooler than May.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12818
22818
32818
42818
52819
62819
72819
82919
92919
102919
112919
122919
132919
142920
152920
162920
172920
182920
193020
203020
213020
223020
233020
243021
253021
263021
273021
283021
293021
303021

How April really feels in Thị Trấn Thuận Châu

Once humidity and wind are folded in, April averages 5 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
5
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.

Thị Trấn Thuận Châu weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 12°397.110.87.0
Feb24° / 13°357.511.37.3
Mar27° / 16°7111.611.86.5
Apr29° / 20°11215.512.54.8
May30° / 22°20721.2133.5
Jun30° / 23°35726.513.32.9
Jul29° / 23°42827.613.23.0
Aug29° / 23°3632712.73.1
Sep29° / 22°18519.612.14.1
Oct28° / 20°609.611.56.3
Nov25° / 16°375.6117.5
Dec22° / 13°386.310.77.4

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 43%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25842
35842
45941
55941
66040
75941
85941
95941
105842
115842
125842
135842
145842
155842
165743
175743
185743
195644
205644
215644
225644
235545
245545
255545
265446
275446
285347
295248
305248

Chance of precipitation in April

Any precipitation

Thị Trấn Thuận Châu gets around 112 mm of rain over 15.5 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 51% and peaks near 58% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
148
248
348
448
548
648
748
848
948
1048
1149
1249
1349
1449
1550
1650
1751
1851
1952
2053
2153
2254
2355
2455
2556
2656
2757
2857
2957
3058

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 76% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
141130514
231029535
33928546
43927556
52826577
62825578
72824579
828235710
917225812
1017225713
1116215814
1216205716
1315195817
1415195619
1505185621
1604175722
1704165624
1804165525
1903155527
2003145528
2103145429
2202135431
2302135332
2402125333
2502115235
2601115236
2701105138
2801105039
2901104940
300194842

Wind in April

Winds average 4 km/h in April.

Across April, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 12 min at the start of April to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over April. Sunrise moves from 6:04 AM to 5:40 AM, and sunset from 6:15 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:046:15
212.26:036:16
312.26:026:16
412.26:026:16
512.36:016:17
612.36:006:17
712.35:596:17
812.35:586:18
912.45:576:18
1012.45:566:18
1112.45:556:19
1212.45:546:19
1312.45:536:19
1412.55:526:20
1512.55:526:20
1612.55:516:20
1712.55:506:21
1812.55:496:21
1912.65:486:21
2012.65:476:22
2112.65:476:22
2212.65:466:22
2312.65:456:23
2412.65:446:23
2512.75:436:23
2612.75:436:24
2712.75:426:24
2812.75:416:25
2912.75:406:25
3012.85:406:25

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.21 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.08 kWh/m² to a high of 5.21 kWh/m² in April across the year — April's 5.21 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in April

Hazard calendar for Thị Trấn Thuận Châu

In seasonPeak

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

Thị Trấn Thuận Châu's monsoon runs May–August, 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 Thị Trấn Thuận Châu?

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

4.8
Sightseeing
7th-best month of the year
6.1
Beach & pool
4th-best month of the year

April is a reasonable time to visit Thị Trấn Thuận Châu for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Thị Trấn Thuận Châu in April

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

In April, Thị Trấn Thuận Châu sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Thị Trấn Thuận Châu 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 Thị Trấn Thuận Châu peaks around June 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highHighJun 20UV 13Dec 19UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar11Extreme
Apr9Very high
May10Extreme
Jun13Extreme
Jul13Extreme
Aug12Extreme
Sep10Very high
Oct9Very high
Nov8Very high
Dec6High

Air quality in Thị Trấn Thuận Châu 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 Thị Trấn Thuận Châu is worst in April — around 99 µg/m³ PM2.5 (unhealthy), about 8.1× the cleanest month (July, 12 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyModerateApr 1395 µg/m³Jul 2212 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb41Poor
Mar73Unhealthy
Apr99Unhealthy
May32Moderate
Jun14Moderate
Jul12Moderate
Aug13Moderate
Sep17Moderate
Oct23Moderate
Nov26Moderate
Dec30Moderate
Location & terrain

Where is Thị Trấn Thuận Châu?

Thị Trấn Thuận Châu sits at 21.4°N, 103.7°E, 594 m above sea level, in Vietnam. The nearest listed city is Sơn La, 27 km away.

SapaLai ChâuThị Trấn Phố Lu

Topography around Thị Trấn Thuận Châu

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Thị Trấn Thuận Châu.

Within 3 km, the terrain around Thị Trấn Thuận Châu has significant variations in elevation — a maximum elevation change of 505 m around an average of 699 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,610 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,825 m.

The land around Thị Trấn Thuận Châu is covered by trees (73%) within 3 km, trees (76%) within 16 km, and trees (69%) and grassland (26%) within 80 km.

3 km
505 m
16 km
1,610 m
80 km
2,825 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Sơn La 27 km · Ít Ong 36 km · Dien Bien Phu 69 km · Mường Lay 85 km · Nghĩa Lộ 87 km · Sapa 102 km · Lai Châu 109 km · Thị Trấn Phố Lu 111 km

Vietnam travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / F
220 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,066
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
1.5
per 100k, 2011
Road deaths
30.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 500
Religion
none 86%Catholic 6%Buddhist 6%Protestant 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 Thị Trấn Thuận Châu (21.4385°, 103.69°, elevation 594 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).