Xam Nua weather in April

In April, Xam Nua sees average daytime highs of 27°C and overnight lows near 17°C, with 113 mm of rain across 17.4 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 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 30% of the time in April, and the air most often feels humid.

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 Xam Nua's 6th-clearest and 4th-windiest month. For the whole year in context, see Xam Nua's year-round climate.

Daytime high
27°
5th warmest
Overnight low
17°
7th coldest
Rainfall
113 mm
17.4 wet days
Daylight
12 h 30 min
5:50 AM – 6:18 PM
Cloud cover
59%
6th clearest
Wind
6 km/h
4th windiest
Solar energy
5.34 kWh/m²
Travel score
5.4
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical April day in Xam Nua reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, April runs about 2°C warmer than March and about 1°C cooler than May.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52616
62716
72717
82717
92717
102717
112717
122717
132717
142717
152717
162717
172717
182818
192818
202818
212818
222818
232818
242818
252818
262818
272818
282818
292818
302818

Xam Nua 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
Jan20° / 10°244.210.97.1
Feb22° / 12°173.711.37.7
Mar25° / 14°6310.211.96.9
Apr27° / 17°11317.412.55.4
May28° / 20°20923.6134.0
Jun29° / 21°21724.513.23.5
Jul28° / 21°27626.813.13.6
Aug27° / 20°31227.412.73.7
Sep26° / 19°20021.512.14.6
Oct24° / 17°9214.611.56.1
Nov22° / 14°317117.2
Dec20° / 11°183.610.87.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35446
45347
55446
65446
75446
85446
95446
105347
115347
125446
135446
145347
155347
165347
175347
185248
195149
205149
215149
225050
235050
244951
254852
264753
274753
284654
294555
304456

Chance of precipitation in April

Any precipitation

Xam Nua gets around 113 mm of rain over 17.4 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 58% and peaks near 70% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
149
249
350
450
550
650
751
851
951
1052
1152
1253
1353
1454
1555
1656
1757
1859
1960
2061
2163
2264
2365
2466
2567
2668
2768
2869
2970
3070

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the humid band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 39% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
182456120
272357130
362258140
462158150
552058170
641959180
741858200
841757220
931657240
1031556260
1131455280
1221355300
1321253330
1421152350
1521051370
162949400
171947420
181845450
191843470
201841500
211739530
221737550
231736560
241734580
251632601
260631621
270629641
280628651
291626661
301525681

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 6:03 AM to 5:40 AM, and sunset from 6:14 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:036:14
212.26:026:14
312.26:016:14
412.26:006:15
512.36:006:15
612.35:596:15
712.35:586:15
812.35:576:16
912.35:566:16
1012.45:556:16
1112.45:546:17
1212.45:536:17
1312.45:536:17
1412.45:526:17
1512.45:516:18
1612.55:506:18
1712.55:496:18
1812.55:486:19
1912.55:486:19
2012.55:476:19
2112.65:466:20
2212.65:456:20
2312.65:456:20
2412.65:446:21
2512.65:436:21
2612.75:426:21
2712.75:426:22
2812.75:416:22
2912.75:406:22
3012.75:406:23

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.34 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.3 kWh/m² to a high of 5.34 kWh/m² in April across the year — April's 5.34 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in April

Hazard calendar for Xam Nua

In seasonPeak

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

Xam Nua'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 Xam Nua?

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

5.4
Sightseeing
7th-best month of the year
5.5
Beach & pool
3rd-best month of the year

April is a reasonable time to visit Xam Nua for sightseeing.

What to pack for Xam Nua in April

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

In April, Xam Nua sees daytime highs around 27°C and nights near 17°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Xam Nua 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 Xam Nua peaks around August 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highAug 12UV 14Dec 17UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar10Extreme
Apr9Very high
May11Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep10Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Xam Nua 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 Xam Nua is worst in April — around 288 µg/m³ PM2.5 (very unhealthy), about 35.5× the cleanest month (August, 8 µg/m³).

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

0306090120150180210240270JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyVery unhealthyUnhealthyGoodModerateApr 15263 µg/m³Aug 128 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb28Moderate
Mar98Unhealthy
Apr288Very unhealthy
May64Unhealthy
Jun14Moderate
Jul9Good
Aug8Good
Sep11Good
Oct15Moderate
Nov15Moderate
Dec19Moderate
Location & terrain

Where is Xam Nua?

Xam Nua sits at 20.4°N, 104.0°E, 957 m above sea level, in Laos. The nearest listed city is Vieng Xai, 19 km away.

Sơn LaBản Na HỷThị Trấn Thuận ChâuÍt OngMuang PhônsavanNghĩa LộHòa Bình

Topography around Xam Nua

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

Within 3 km, the terrain around Xam Nua has significant variations in elevation — a maximum elevation change of 373 m around an average of 1,033 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,118 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,963 m.

The land around Xam Nua is covered by trees (65%) within 3 km, trees (83%) within 16 km, and trees (82%) within 80 km.

3 km
373 m
16 km
1,118 m
80 km
1,963 m
treesgrasslandcroplandartificial surfacesbare terrain
April weather nearby: Vieng Xai 19 km · Sơn La 102 km · Bản Na Hỷ 108 km · Thị Trấn Thuận Châu 119 km · Ít Ong 122 km · Muang Phônsavan 140 km · Nghĩa Lộ 140 km · Hòa Bình 142 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 Xam Nua (20.4164°, 104.045°, elevation 957 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).