Chon Daen in Fall

In fall (September, October and November), Chon Daen sees average daytime highs around 32°C and overnight lows near 24°C, with 491 mm of rain over about 49 wet days across the season. It is the coldest season of the year and the 2nd-wettest season.

Across fall, daytime highs hold fairly steady around 32°C. The sky is clear or mostly clear about 27% of the time across fall, and the air most often feels miserable.

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

Avg daytime high: 32°C; coldest season of the year
Avg overnight low: 24°C
Rainfall: 491 mm; 49 wet days
Avg wind: 5 km/h
Travel score: 3.5; 2nd-best season
Months: Sep · Oct · Nov

← Summer Chon Daen year-round climate Winter →

Spring Summer Fall Winter

Temperature in Chon Daen in Fall

Average highAverage lowShaded bands: 10–90% of days

Across fall, daytime highs hold fairly steady around 32°C.

A typical fall day in Chon Daen reaches about 32°C and drops to 24°C overnight. The warmest of the three months is November, the coolest November.

How fall really feels in Chon Daen

Once humidity and wind are folded in, fall brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

28 feel dangerously hot (≥ 39°C)

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.

Chon Daen 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	32° / 19°	10	1.8	11.1	5.3
Feb	33° / 21°	12	2.4	11.5	4.1
Mar	35° / 24°	31	5.6	11.9	2.8
Apr	36° / 26°	59	10.2	12.4	2.0
May	34° / 26°	183	21.7	12.7	2.0
Jun	33° / 26°	215	25.3	12.9	2.1
Jul	32° / 25°	249	26.7	12.9	2.4
Aug	31° / 25°	308	28.7	12.5	2.3
Sep	31° / 25°	312	27.4	12.1	2.4
Oct	32° / 24°	150	17.7	11.6	3.4
Nov	32° / 22°	29	4.2	11.2	4.7
Dec	31° / 19°	8	1.4	11.1	5.7

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time across fall.

Chance of precipitation in Fall

Any precipitation

Chon Daen gets around 491 mm of rain over 49 wet days across fall. The line is the day-by-day chance of measurable precipitation.

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

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

Wind in Fall

Winds average 5 km/h across fall.

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 18 min in early September to 11 h 06 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 4.6 kWh/m².

Planning a trip in fall

Hazard calendar for Chon Daen

In seasonPeak

In fall, Chon Daen overlaps its monsoon season. The full year is below, with each hazard's peak months called out.

Chon Daen's monsoon runs May–October, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is fall a good time to visit Chon Daen?

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.

3.5

Sightseeing

2nd-best month of the year

5.5

Beach & pool

2nd-best month of the year

fall is a weaker month for outdoor sightseeing in Chon Daen.

What to pack for Chon Daen in Fall

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

In fall, Chon Daen sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 49 days see rain.

light clothesrain gearsun protection

UV index in Chon Daen 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 Chon Daen peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 8 (very 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)	9	10	11	10	11	12	12	13	12	10	8	8
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	9	Very high
Feb	10	Extreme
Mar	11	Extreme
Apr	10	Extreme
May	11	Extreme
Jun	12	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	12	Extreme
Oct	10	Extreme
Nov	8	Very high
Dec	8	Very high

Air quality in Chon Daen 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 Chon Daen is worst in March — around 56 µg/m³ PM2.5 (unhealthy), about 2.5× the cleanest month (June, 23 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)	47	52	56	46	32	23	24	24	28	34	38	42
Level	Poor	Poor	Unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Poor

	PM2.5 (µg/m³)	Level
Jan	47	Poor
Feb	52	Poor
Mar	56	Unhealthy
Apr	46	Poor
May	32	Moderate
Jun	23	Moderate
Jul	24	Moderate
Aug	24	Moderate
Sep	28	Moderate
Oct	34	Moderate
Nov	38	Poor
Dec	42	Poor

Location & terrain

Where is Chon Daen?

Chon Daen sits at 16.2°N, 100.9°E, 106 m above sea level, in Thailand. The nearest listed city is Thap Khlo, 28 km away.

Topography around Chon Daen

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

Within 3 km, the terrain around Chon Daen has only modest variations in elevation — a maximum elevation change of 81 m around an average of 107 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,018 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,544 m.

The land around Chon Daen is covered by cropland (49%) and trees (35%) within 3 km, trees (54%) and cropland (37%) within 16 km, and cropland (55%) and trees (41%) within 80 km.

3 km

81 m

cropland 49%

16 km

1,018 m

trees 54%

80 km

1,544 m

cropland 55%

treesgrasslandcroplandartificial surfaces

← Summer Chon Daen year-round climate Winter →

Fall weather nearby: Thap Khlo 28 km · Nong Phai 31 km · Phetchabun 41 km · Taphan Hin 47 km · Bang Mun Nak 54 km · Phichit 61 km · Wichian Buri 65 km · Bang Krathum 74 km

Thailand travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B / C; 230 V · 50 Hz
Prices: ≈ 31% of US; price level, 2025
GDP per capita: $8,057; 2025
Happiness: 6.3 / 10; World Happiness, 2025
Homicide rate: 4.8; per 100k, 2011
Road deaths: 32.2; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Very low; EF EPI 402
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 Chon Daen (16.1895°, 100.8596°, elevation 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.