Ban Houakhoua weather in May

In May, Ban Houakhoua sees average daytime highs of 33°C and overnight lows near 24°C, with 215 mm of rain across 19.3 wet days and about 12.9 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels oppressive.

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 Ban Houakhoua's 8th-clearest and 5th-windiest month. For the whole year in context, see Ban Houakhoua's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
24°
9th coldest
Rainfall
215 mm
19.3 wet days
Daylight
13 hours
5:46 AM – 6:43 PM
Cloud cover
67%
8th clearest
Wind
5 km/h
5th windiest
Solar energy
5.33 kWh/m²
Travel score
2.8
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical May day in Ban Houakhoua reaches about 33°C in the afternoon and slips back to 24°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 36°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103324
113324
123324
133324
143324
153324
163324
173324
183324
193324
203324
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How May really feels in Ban Houakhoua

Once humidity and wind are folded in, May averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ban Houakhoua weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 15°222.810.97.9
Feb30° / 16°121.811.36.2
Mar33° / 19°374.811.94.3
Apr34° / 22°999.612.43.2
May33° / 24°21519.312.92.8
Jun32° / 25°23524.813.22.5
Jul31° / 24°3532813.12.6
Aug30° / 24°36328.412.72.6
Sep31° / 23°24524.212.13.0
Oct30° / 22°10615.111.54.4
Nov29° / 18°395.4116.5
Dec27° / 15°233.110.88.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26535
36337
46238
56139
65842
75644
85545
95347
105149
114852
124654
134555
144357
154159
163961
173664
183565
193367
203169
213070
222872
232773
242476
252377
262278
272080
281981
291882
301783
311585

Chance of precipitation in May

Any precipitation

Ban Houakhoua gets around 215 mm of rain over 19.3 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 62% and peaks near 79% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
146
247
348
449
550
651
752
853
955
1056
1157
1258
1359
1460
1562
1663
1764
1865
1966
2067
2168
2269
2370
2471
2572
2673
2774
2875
2976
3077
3179

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 77% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1337600
2335620
3233650
4231670
5229690
6227701
7225721
8223741
9221761
10220771
11118801
12117811
13116812
14115822
15114823
16114823
17113824
18112825
19111826
20111826
21110827
22110818
2319819
2419819
25088210
26078211
27078112
28068113
29068113
30058114
31058114

Wind in May

Winds average 5 km/h in May.

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

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

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 5:53 AM to 5:42 AM, and sunset from 6:37 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:536:37
212.75:536:38
312.85:526:38
412.85:526:38
512.85:516:39
612.85:506:39
712.85:506:40
812.85:496:40
912.95:496:40
1012.95:486:41
1112.95:486:41
1212.95:476:42
1312.95:476:42
1412.95:476:42
1512.95:466:43
1613.05:466:43
1713.05:456:44
1813.05:456:44
1913.05:456:44
2013.05:446:45
2113.05:446:45
2213.05:446:46
2313.05:436:46
2413.15:436:46
2513.15:436:47
2613.15:436:47
2713.15:426:48
2813.15:426:48
2913.15:426:49
3013.15:426:49
3113.15:426:49

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.33 kWh/m².

For context, solar energy here swings from a low near 3.94 kWh/m² to a high of 6.22 kWh/m² in April across the year — May's 5.33 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.2Bright
215.1Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.8Bright
314.8Bright
Planning a trip in May

Hazard calendar for Ban Houakhoua

In seasonPeak

In May, Ban Houakhoua sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Ban Houakhoua sits in the Pacific typhoon belt; the season peaks July–October.

Ban Houakhoua's monsoon runs May–September, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Ban Houakhoua?

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

2.8
Sightseeing
9th-best month of the year
4.9
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Ban Houakhoua.

What to pack for Ban Houakhoua in May

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

In May, Ban Houakhoua sees daytime highs around 33°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Ban Houakhoua in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Ban Houakhoua peaks around July 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highJul 19UV 13Dec 20UV 7
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar9Very high
Apr10Very high
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Ban Houakhoua 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 Ban Houakhoua is worst in April — around 385 µg/m³ PM2.5 (very unhealthy), about 41.4× the cleanest month (October, 9 µg/m³).

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

0306090120150180210240270300330360JanFebMarAprMayJunJulAugSepOctNovDecModerateVery unhealthyModerateGoodApr 14355 µg/m³Oct 209 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb28Moderate
Mar191Very unhealthy
Apr385Very unhealthy
May37Poor
Jun13Moderate
Jul11Good
Aug11Good
Sep10Good
Oct9Good
Nov10Good
Dec12Good
Location & terrain

Where is Ban Houakhoua?

Ban Houakhoua sits at 20.2°N, 100.5°E, 361 m above sea level, in Laos. The nearest listed city is Ban Khoan, 40 km away.

Mae SaiMae ChanTachilekChiang RaiMöng YawngLuang NamthaMuang Sing

Topography around Ban Houakhoua

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

Within 3 km, the terrain around Ban Houakhoua has only modest variations in elevation — a maximum elevation change of 199 m around an average of 373 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 991 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,558 m.

The land around Ban Houakhoua is covered by cropland (38%) and trees (36%) within 3 km, trees (67%) and cropland (22%) within 16 km, and trees (82%) within 80 km.

3 km
199 m
16 km
991 m
80 km
1,558 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ban Khoan 40 km · Mae Sai 64 km · Mae Chan 64 km · Tachilek 64 km · Chiang Rai 75 km · Möng Yawng 104 km · Luang Namtha 126 km · Muang Sing 128 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 Ban Houakhoua (20.2467°, 100.454°, elevation 361 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).