Ban Khoan in Fall

In fall (September, October and November), Ban Khoan sees average daytime highs around 30°C and overnight lows near 22°C, with 456 mm of rain over about 45 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.

Over the season highs ease from about 31°C in early September to 28°C by late November. The sky is clear or mostly clear about 35% of the time across fall, and the air most often feels oppressive.

Fall is Ban Khoan's 2nd-best season to visit on our travel score. For the whole year in context, see Ban Khoan's year-round climate.

Avg daytime high: 30°C; 3rd-warmest season
Avg overnight low: 22°C
Rainfall: 456 mm; 45 wet days
Avg wind: 3 km/h
Travel score: 4.4; 2nd-best season
Months: Sep · Oct · Nov

← Summer Ban Khoan year-round climate Winter →

Spring Summer Fall Winter

Temperature in Ban Khoan in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 31°C in early September to 28°C by late November.

A typical fall day in Ban Khoan reaches about 30°C and drops to 22°C overnight. The warmest of the three months is September, the coolest November.

How fall really feels in Ban Khoan

Once humidity and wind are folded in, fall brings about 60 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Ban Khoan weather by month

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 14°	21	2.5	10.9	7.6
Feb	31° / 15°	11	1.8	11.3	5.7
Mar	34° / 18°	34	4.3	11.9	3.8
Apr	35° / 22°	97	9.9	12.5	2.9
May	33° / 24°	232	20.3	13	2.6
Jun	32° / 25°	272	25.3	13.2	2.3
Jul	31° / 25°	390	28	13.1	2.4
Aug	31° / 24°	390	28.5	12.7	2.4
Sep	31° / 24°	290	24.1	12.1	2.8
Oct	31° / 22°	126	15.9	11.5	4.2
Nov	29° / 19°	40	5.3	11	6.3
Dec	27° / 16°	24	2.9	10.8	8.0

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time across fall.

Chance of precipitation in Fall

Any precipitation

Ban Khoan gets around 456 mm of rain over 45 wet days across fall. The line is the day-by-day chance of measurable precipitation.

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Fall

Winds average 3 km/h across fall.

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 24 min in early September to 10 h 54 min by late November. The lit band spans sunrise to sunset each day.

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 4.3 kWh/m².

Planning a trip in fall

Hazard calendar for Ban Khoan

In seasonPeak

In fall, Ban Khoan overlaps its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

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

Ban Khoan'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 fall a good time to visit Ban Khoan?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

4.4

Sightseeing

2nd-best month of the year

6.1

Beach & pool

2nd-best month of the year

fall is a reasonable time to visit Ban Khoan for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ban Khoan in Fall

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

In fall, Ban Khoan sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. About 45 days see rain.

light clothesrain gear

UV index in Ban Khoan in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages around 10 (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 Khoan 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	7	9	9	10	11	13	13	13	11	10	8	7
Level	High	Very high	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	High

	UV index (midday)	Level
Jan	7	High
Feb	9	Very high
Mar	9	Very high
Apr	10	Very high
May	11	Extreme
Jun	13	Extreme
Jul	13	Extreme
Aug	13	Extreme
Sep	11	Extreme
Oct	10	Extreme
Nov	8	Very high
Dec	7	High

Air quality in Ban Khoan in Fall

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Ban Khoan is worst in April — around 156 µg/m³ PM2.5 (very unhealthy), about 12.0× the cleanest month (July, 13 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	23	40	128	156	37	15	13	13	13	14	15	19
Level	Moderate	Poor	Unhealthy	Very unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	23	Moderate
Feb	40	Poor
Mar	128	Unhealthy
Apr	156	Very unhealthy
May	37	Poor
Jun	15	Moderate
Jul	13	Moderate
Aug	13	Moderate
Sep	13	Moderate
Oct	14	Moderate
Nov	15	Moderate
Dec	19	Moderate

Location & terrain

Where is Ban Khoan?

Ban Khoan sits at 20.4°N, 100.1°E, 373 m above sea level, in Laos. The nearest listed city is Mae Sai, 24 km away.

Topography around Ban Khoan

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

Within 3 km, the terrain around Ban Khoan has only modest variations in elevation — a maximum elevation change of 145 m around an average of 382 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 862 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,714 m.

The land around Ban Khoan is covered by trees (42%) and cropland (25%) within 3 km, trees (46%) and cropland (38%) within 16 km, and trees (81%) within 80 km.

3 km

145 m

trees 42%

16 km

862 m

trees 46%

80 km

1,714 m

trees 81%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Summer Ban Khoan year-round climate Winter →

Fall weather nearby: Mae Sai 24 km · Tachilek 24 km · Mae Chan 34 km · Ban Houakhoua 40 km · Chiang Rai 56 km · Möng Yawng 96 km · Phayao 131 km · Dok Kham Tai 132 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

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 Khoan (20.3501°, 100.0902°, elevation 373 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.