Muang Phônsavan weather in May

In May, Muang Phônsavan sees average daytime highs of 28°C and overnight lows near 19°C, with 165 mm of rain across 25.2 wet days and about 12.9 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 8% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of May to 13 h 06 min by month's end. Set against the rest of the year, May is Muang Phônsavan's 8th-clearest and 8th-windiest month. For the whole year in context, see Muang Phônsavan's year-round climate.

Daytime high
28°
1st warmest
Overnight low
19°
9th coldest
Rainfall
165 mm
25.2 wet days
Daylight
12 h 54 min
5:36 AM – 6:31 PM
Cloud cover
79%
8th clearest
Wind
6 km/h
8th windiest
Solar energy
4.99 kWh/m²
Travel score
4.0
out of 10

Muang Phônsavan is town in Laos.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical May day in Muang Phônsavan reaches about 28°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, May runs on par with April and on par with June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12718
22718
32718
42718
52718
62718
72719
82819
92819
102819
112819
122819
132819
142819
152819
162819
172819
182819
192819
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820
312820

Muang Phônsavan weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 10°203.3118.1
Feb25° / 11°183.811.38.2
Mar26° / 14°6310.611.96.8
Apr27° / 17°11718.912.45.2
May28° / 19°16525.212.94.0
Jun27° / 21°1852613.23.7
Jul27° / 20°25327.813.13.6
Aug26° / 20°27528.612.73.6
Sep26° / 19°1732112.14.7
Oct25° / 17°6810.911.66.6
Nov24° / 13°204.511.18.0
Dec22° / 10°142.410.88.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 79%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24258
34060
43862
53664
63565
73268
83169
92971
102773
112575
122377
132278
142179
151981
161882
171684
181684
191486
201387
211288
221189
231189
241090
251090
261090
271090
28991
29991
30892
31892

Chance of precipitation in May

Any precipitation

Muang Phônsavan gets around 165 mm of rain over 25.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 82% and peaks near 86% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
179
279
379
479
579
679
779
879
980
1080
1180
1280
1381
1481
1581
1682
1782
1882
1983
2083
2183
2283
2384
2484
2584
2684
2784
2885
2985
3085
3186

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 89% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1218800
2216820
3215830
4214831
5213841
6212851
7211861
8211861
9210871
10210871
1129881
1229881
1329881
1429881
1528882
1628882
1728882
1827892
1927892
2027892
2116912
2216912
2315922
2415922
2515922
2614932
2714932
2803952
2903952
3003952
3102962

Wind in May

Winds average 6 km/h in May.

Across May, 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.

0246810151015202531
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
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over May. Sunrise moves from 5:43 AM to 5:32 AM, and sunset from 6:25 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:436:25
212.75:436:26
312.75:426:26
412.75:426:26
512.85:416:27
612.85:416:27
712.85:406:28
812.85:406:28
912.85:396:28
1012.85:396:29
1112.85:386:29
1212.95:386:29
1312.95:376:30
1412.95:376:30
1512.95:366:31
1612.95:366:31
1712.95:366:31
1812.95:356:32
1913.05:356:32
2013.05:356:33
2113.05:346:33
2213.05:346:33
2313.05:346:34
2413.05:346:34
2513.05:336:35
2613.05:336:35
2713.05:336:35
2813.15:336:36
2913.15:336:36
3013.15:326:37
3113.15:326:37

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.99 kWh/m².

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 5.63 kWh/m² in April across the year — May's 4.99 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.1Bright
145.0Bright
155.0Bright
165.0Bright
174.9Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in May

Hazard calendar for Muang Phônsavan

In seasonPeak

In May, Muang Phônsavan sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Muang Phônsavan'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 May a good time to visit Muang Phônsavan?

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

4.0
Sightseeing
9th-best month of the year
4.3
Beach & pool
9th-best month of the year

May is a reasonable time to visit Muang Phônsavan for sightseeing.

What to pack for Muang Phônsavan in May

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

In May, Muang Phônsavan sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Muang Phônsavan in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Muang Phônsavan peaks around June 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 20UV 14Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar11Extreme
Apr10Extreme
May12Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Muang Phônsavan in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Muang Phônsavan is worst in April — around 227 µg/m³ PM2.5 (very unhealthy), about 32.9× the cleanest month (August, 7 µg/m³).

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

0306090120150180210240JanFebMarAprMayJunJulAugSepOctNovDecModerateVery unhealthyGoodApr 10223 µg/m³Aug 247 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb33Moderate
Mar206Very unhealthy
Apr227Very unhealthy
May22Moderate
Jun8Good
Jul7Good
Aug7Good
Sep7Good
Oct8Good
Nov7Good
Dec9Good
Location & terrain

Where is Muang Phônsavan?

Muang Phônsavan sits at 19.4°N, 103.2°E, 1,106 m above sea level, in Laos. The nearest listed city is Vang Vieng, 98 km away.

Vang ViengBorikhanLuang PrabangPakxanNong KhiawXam NuaBản Na HỷVieng Xai

Topography around Muang Phônsavan

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

Within 3 km, the terrain around Muang Phônsavan has only modest variations in elevation — a maximum elevation change of 229 m around an average of 1,111 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 903 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,599 m.

The land around Muang Phônsavan is covered by grassland (36%), cropland (27%) and artificial surfaces (26%) within 3 km, trees (45%) and grassland (35%) within 16 km, and trees (82%) within 80 km.

3 km
229 m
16 km
903 m
80 km
2,599 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Vang Vieng 98 km · Borikhan 113 km · Luang Prabang 119 km · Pakxan 127 km · Nong Khiaw 139 km · Xam Nua 140 km · Bản Na Hỷ 141 km · Vieng Xai 152 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 Muang Phônsavan (19.4494°, 103.1917°, elevation 1,106 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).