Ban Xénô weather in September

In September, Ban Xénô sees average daytime highs of 31°C and overnight lows near 24°C, with 275 mm of rain across 23.9 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 3rd-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 9% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Ban Xénô's 9th-clearest and 12th-windiest month. For the whole year in context, see Ban Xénô's year-round climate.

Daytime high
31°
6th warmest
Overnight low
24°
7th coldest
Rainfall
275 mm
23.9 wet days
Daylight
12 h 06 min
5:52 AM – 5:57 PM
Cloud cover
81%
9th clearest
Wind
7 km/h
12th windiest
Solar energy
4.37 kWh/m²
Travel score
3.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Ban Xénô reaches about 31°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124

How September really feels in Ban Xénô

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Ban Xénô weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°4111.17.2
Feb31° / 19°112.311.45.9
Mar33° / 22°355.511.94.2
Apr34° / 24°6210.712.43.0
May33° / 25°19722.112.82.5
Jun32° / 25°23324.2132.6
Jul31° / 25°3242712.92.7
Aug30° / 25°33528.512.62.6
Sep31° / 24°27523.912.13.0
Oct31° / 23°11411.811.64.4
Nov30° / 21°253.211.25.9
Dec28° / 18°61.2117.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11090
2991
3991
4991
51090
61090
71090
81189
91387
101387
111387
121585
131585
141783
151882
161981
172080
182179
192377
202575
212674
222773
232872
242971
253070
263070
273268
283367
293367
303664

Chance of precipitation in September

Any precipitation

Ban Xénô gets around 275 mm of rain over 23.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 79% and peaks near 92% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
192
292
391
491
591
690
789
889
988
1087
1186
1285
1384
1483
1582
1680
1779
1877
1976
2075
2173
2272
2370
2469
2567
2666
2765
2864
2963
3061

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 72% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
10694
20793
30793
40892
51990
611089
711089
811287
911386
1011485
1121682
1221781
1321979
1432077
1532275
1632473
1742670
1842769
1942967
2043165
2153362
2253560
2353758
2453956
2564153
2664252
2774449
2884647
2984745
3094843

Wind in September

Winds average 7 km/h in September, the calmest month.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 5:50 AM to 5:53 AM, and sunset from 6:10 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:506:10
212.35:506:09
312.35:506:08
412.35:506:07
512.35:506:06
612.35:506:06
712.25:516:05
812.25:516:04
912.25:516:03
1012.25:516:02
1112.25:516:01
1212.25:516:01
1312.15:516:00
1412.15:515:59
1512.15:515:58
1612.15:525:57
1712.15:525:56
1812.15:525:55
1912.05:525:55
2012.05:525:54
2112.05:525:53
2212.05:525:52
2312.05:525:51
2412.05:535:50
2511.95:535:50
2611.95:535:49
2711.95:535:48
2811.95:535:47
2911.95:535:46
3011.95:535:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.37 kWh/m².

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 6.06 kWh/m² in April across the year — September's 4.37 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.1Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in September

Hazard calendar for Ban Xénô

In seasonPeak

In September, Ban Xénô sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Ban Xénô'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 September a good time to visit Ban Xénô?

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

3.0
Sightseeing
7th-best month of the year
4.4
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Ban Xénô.

What to pack for Ban Xénô in September

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

In September, Ban Xénô sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. About 24 days see rain.

light clothesrain gear

UV index in Ban Xénô in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Xénô peaks around July 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJul 15UV 13Dec 13UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr10Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug12Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Ban Xénô in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Ban Xénô is worst in March — around 55 µg/m³ PM2.5 (poor), about 4.5× the cleanest month (November, 12 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1952 µg/m³Nov 2112 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb27Moderate
Mar55Poor
Apr40Poor
May22Moderate
Jun18Moderate
Jul19Moderate
Aug19Moderate
Sep17Moderate
Oct16Moderate
Nov12Good
Dec13Moderate
Location & terrain

Where is Ban Xénô?

Ban Xénô sits at 16.7°N, 105.0°E, 197 m above sea level, in Laos. The nearest listed city is Savannakhet, 27 km away.

Tha KhaekNakhon PhanomKhao WongAmnat CharoenKuchinarai

Topography around Ban Xénô

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

Within 3 km, the terrain around Ban Xénô has only modest variations in elevation — a maximum elevation change of 31 m around an average of 188 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 85 m; within 80 km, significant variations in elevation — a maximum elevation change of 525 m.

The land around Ban Xénô is covered by cropland (66%) within 3 km, cropland (46%) and trees (37%) within 16 km, and trees (52%) and cropland (37%) within 80 km.

3 km
31 m
16 km
85 m
80 km
525 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Savannakhet 27 km · Mukdahan 32 km · Ban Kèngkok 34 km · Tha Khaek 83 km · Nakhon Phanom 85 km · Khao Wong 96 km · Amnat Charoen 99 km · Kuchinarai 101 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 Xénô (16.6759°, 104.988°, elevation 197 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).