Chatham in Fall
In fall (September, October and November), Chatham sees average daytime highs around 15°C and overnight lows near 7°C, with 219 mm of precipitation over about 29 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 24°C in early September to 6°C by late November. The sky is clear or mostly clear about 28% of the time across fall, and the air most often feels dry.
Fall is Chatham's 2nd-best season to visit on our travel score. For the whole year in context, see Chatham's year-round climate.
- Avg daytime high
- 15°C
- 2nd-warmest season
- Avg overnight low
- 7°C
- Precipitation
- 219 mm
- 29 wet days
- Avg wind
- 15 km/h
- Travel score
- 4.3
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Chatham in Fall
Over the season highs ease from about 24°C in early September to 6°C by late November.
A typical fall day in Chatham reaches about 15°C and drops to 7°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Chatham
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 27 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Chatham 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 | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -1° / -7° | 66 | 10.5 | 6.6 | 9.3 | 0.0 |
| Feb | 0° / -7° | 54 | 8.5 | 6 | 10.3 | 0.0 |
| Mar | 6° / -3° | 66 | 10.2 | 4.4 | 11.6 | 0.5 |
| Apr | 13° / 4° | 89 | 12.2 | 1.3 | 13.1 | 3.3 |
| May | 19° / 10° | 92 | 12.3 | 0 | 14.4 | 5.7 |
| Jun | 25° / 15° | 94 | 11.2 | 0 | 15 | 6.6 |
| Jul | 27° / 18° | 86 | 11.1 | 0 | 14.8 | 6.5 |
| Aug | 26° / 17° | 77 | 10.4 | 0 | 13.7 | 6.8 |
| Sep | 22° / 13° | 73 | 8.7 | 0 | 12.3 | 6.9 |
| Oct | 15° / 7° | 76 | 10.3 | 0 | 10.8 | 4.6 |
| Nov | 8° / 2° | 71 | 9.7 | 1.9 | 9.6 | 1.4 |
| Dec | 2° / -3° | 63 | 10.1 | 5 | 9 | 0.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 28% of the time across fall.
Chance of precipitation in Fall
Chatham gets around 219 mm of rain and snow over 29 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 15 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 hours in early September to 9 h 06 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 3.1 kWh/m².
Is fall a good time to visit Chatham?
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 reasonable time to visit Chatham for sightseeing.
What to pack for Chatham in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Chatham sees daytime highs around 15°C and nights near 7°C. Pack a warm layer. Worth having: light clothes and rain gear. About 29 days see rain.
Sea temperature near Chatham in Fall
The nearest coast averages about 16°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 32 km away) is warmest in August at about 24°C and coldest in February near 1°C.
It's comfortable for a long swim from Jun 29 to Sep 23 — about 2.9 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 2 | 1 | 1 | 5 | 11 | 18 | 23 | 24 | 21 | 16 | 10 | 5 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Refreshing | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 2 | Bracing |
| Feb | 1 | Bracing |
| Mar | 1 | Bracing |
| Apr | 5 | Bracing |
| May | 11 | Bracing |
| Jun | 18 | Cool |
| Jul | 23 | Refreshing |
| Aug | 24 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 16 | Cool |
| Nov | 10 | Bracing |
| Dec | 5 | Bracing |
UV index in Chatham in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chatham peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 2 | 4 | 6 | 7 | 9 | 9 | 7 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | High | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 7 | High |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Where is Chatham?
Chatham sits at 42.4°N, 82.2°W, 183 m above sea level, in Canada. The nearest listed city is Leamington, 53 km away.
Topography around Chatham
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chatham.
Within 3 km, the terrain around Chatham has only modest variations in elevation — a maximum elevation change of 27 m around an average of 182 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 62 m; within 80 km, only modest variations in elevation — a maximum elevation change of 159 m.
The land around Chatham is covered by artificial surfaces (34%), trees (26%) and cropland (25%) within 3 km, cropland (88%) within 16 km, and water (44%) and cropland (36%) within 80 km.
Canada travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 83% of US
- price level, 2025
- GDP per capita
- $55,698
- 2025
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 2
- per 100k, 2023
- Road deaths
- 5.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- 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 Chatham (42.4122°, -82.1849°, elevation 183 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.