Kampong Chhnang in Fall
In fall (September, October and November), Kampong Chhnang sees average daytime highs around 32°C and overnight lows near 25°C, with 514 mm of rain over about 59 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across fall, daytime highs hold fairly steady around 32°C. The sky is clear or mostly clear about 13% of the time across fall, and the air most often feels miserable.
Fall is Kampong Chhnang's 2nd-best season to visit on our travel score. For the whole year in context, see Kampong Chhnang's year-round climate.
- Avg daytime high
- 32°C
- coldest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 514 mm
- 59 wet days
- Avg wind
- 7 km/h
- Travel score
- 3.0
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Kampong Chhnang in Fall
Across fall, daytime highs hold fairly steady around 32°C.
A typical fall day in Kampong Chhnang reaches about 32°C and drops to 25°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Kampong Chhnang
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.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Kampong Chhnang 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 | 33° / 23° | 10 | 1.8 | 11.4 | 4.3 |
| Feb | 34° / 24° | 9 | 1.8 | 11.6 | 3.4 |
| Mar | 36° / 26° | 43 | 6.3 | 11.9 | 2.2 |
| Apr | 36° / 27° | 86 | 14.1 | 12.3 | 1.7 |
| May | 35° / 27° | 151 | 22.5 | 12.6 | 1.6 |
| Jun | 34° / 26° | 158 | 23.5 | 12.7 | 1.9 |
| Jul | 33° / 26° | 166 | 25.6 | 12.6 | 2.1 |
| Aug | 33° / 26° | 186 | 26.7 | 12.4 | 2.0 |
| Sep | 32° / 26° | 234 | 26.6 | 12.1 | 2.2 |
| Oct | 32° / 25° | 209 | 22.8 | 11.7 | 2.8 |
| Nov | 32° / 24° | 71 | 9.8 | 11.4 | 4.0 |
| Dec | 32° / 23° | 22 | 3.4 | 11.3 | 4.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 13% of the time across fall.
Chance of precipitation in Fall
Kampong Chhnang gets around 514 mm of rain over 59 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
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 7 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early September to 11 h 18 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.7 kWh/m².
Hazard calendar for Kampong Chhnang
In fall, Kampong Chhnang overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Kampong Chhnang's rainy season runs May–October, when most of the year's rain falls.
Is fall a good time to visit Kampong Chhnang?
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.
fall is a weaker month for outdoor sightseeing in Kampong Chhnang.
What to pack for Kampong Chhnang in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Kampong Chhnang sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 59 days see rain.
UV index in Kampong Chhnang in Fall
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 Kampong Chhnang peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 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) | 10 | 11 | 11 | 11 | 10 | 12 | 12 | 14 | 13 | 11 | 8 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 11 | Extreme |
| Apr | 11 | Extreme |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 8 | Very high |
| Dec | 9 | Very high |
Air quality in Kampong Chhnang in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Kampong Chhnang is worst in February — around 42 µg/m³ PM2.5 (poor), about 2.5× the cleanest month (August, 17 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) | 33 | 42 | 41 | 34 | 23 | 19 | 19 | 17 | 19 | 21 | 18 | 18 |
| Level | Moderate | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 33 | Moderate |
| Feb | 42 | Poor |
| Mar | 41 | Poor |
| Apr | 34 | Moderate |
| May | 23 | Moderate |
| Jun | 19 | Moderate |
| Jul | 19 | Moderate |
| Aug | 17 | Moderate |
| Sep | 19 | Moderate |
| Oct | 21 | Moderate |
| Nov | 18 | Moderate |
| Dec | 18 | Moderate |
Where is Kampong Chhnang?
Kampong Chhnang sits at 12.3°N, 104.7°E, 21 m above sea level, in Cambodia. The nearest listed city is Kampong Thom, 57 km away.
Topography around Kampong Chhnang
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kampong Chhnang.
Within 3 km, the terrain around Kampong Chhnang has only modest variations in elevation — a maximum elevation change of 88 m around an average of 14 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 315 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,795 m.
The land around Kampong Chhnang is covered by cropland (28%), grassland (20%) and artificial surfaces (20%) within 3 km, cropland (45%) and grassland (20%) within 16 km, and cropland (52%) and trees (22%) within 80 km.
Cambodia travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / C / G
- 230 V · 50 Hz
- Prices
- ≈ 34% of US
- price level, 2025
- GDP per capita
- $2,872
- 2025
- Happiness
- 4.5 / 10
- World Happiness, 2025
- Safe drinking water
- 30%
- of population, 2024
- Homicide rate
- 1.8
- per 100k, 2011
- Road deaths
- 19.6
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Very low
- EF EPI 390
- 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 Kampong Chhnang (12.25°, 104.6667°, elevation 21 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.