Chatham weather in October

In October, Chatham sees average daytime highs of 15°C and overnight lows near 7°C, with 76 mm of rain across 10.3 wet days and about 10.8 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 12°C by the end. The sky is clear or mostly clear about 29% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 10 h 12 min by month's end. Set against the rest of the year, October is Chatham's 5th-clearest and 7th-windiest month. For the whole year in context, see Chatham's year-round climate.

Daytime high
15°
6th warmest
Overnight low
7th coldest
Rainfall
76 mm
10.3 wet days
Daylight
10 h 48 min
6:49 AM – 5:39 PM
Cloud cover
61%
5th clearest
Wind
16 km/h
7th windiest
Solar energy
2.94 kWh/m²
Travel score
4.6
out of 10

Chatham is community in Ontario, Canada.

Air quality
Good
PM2.5 7 µg/m³ · 2019
Founded
1998

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 12°C by the end.

A typical October day in Chatham reaches about 15°C in the afternoon and slips back to 7°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 21°C. Set against its neighbours, October runs about 7°C cooler than September and about 7°C warmer than November.

10°20°151015202531
Avg high (°C)Avg low (°C)
11910
21910
31810
41810
5189
6189
7179
8179
9179
10178
11178
12168
13168
14168
15158
16157
17157
18157
19147
20147
21146
22146
23136
24136
25136
26136
27125
28125
29125
30125
31125

How October really feels in Chatham

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

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Chatham weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -7°6610.56.69.30.0
Feb / -7°548.5610.30.0
Mar / -3°6610.24.411.60.5
Apr13° / 8912.21.313.13.3
May19° / 10°9212.3014.45.7
Jun25° / 15°9411.20156.6
Jul27° / 18°8611.1014.86.5
Aug26° / 17°7710.4013.76.8
Sep22° / 13°738.7012.36.9
Oct15° / 7610.3010.84.6
Nov / 719.71.99.61.4
Dec / -3°6310.1590.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35248
45248
55248
65149
75149
85149
95050
104951
114951
124753
134753
144555
154456
164357
174159
184159
193961
203862
213862
223763
233763
243664
253565
263565
273466
283466
293466
303466
313466

Chance of precipitation in October

Any precipitation

Chatham gets around 76 mm of rain over 10.3 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
333
433
533
632
732
832
931
1031
1131
1231
1331
1431
1531
1631
1732
1833
1933
2034
2134
2234
2335
2435
2535
2635
2735
2834
2934
3034
3133

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1721774
2721774
3741664
4751654
5771553
6781543
7791443
8791443
9811333
10821332
11831232
12851122
13871021
14871021
1588921
1689911
1791810
1891810
1992710
2092710
2193610
2293610
2394510
2494510
2594510
2695500
2795500
2896400
2996400
3096400
3196400

Wind in October

Winds average 16 km/h in October.

Across October, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over October. Sunrise moves from 6:31 AM to 7:08 AM, and sunset from 6:04 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:316:04
211.56:326:02
311.46:346:01
411.46:355:59
511.46:365:57
611.36:375:55
711.36:385:54
811.26:395:52
911.26:415:50
1011.16:425:48
1111.16:435:47
1211.06:445:45
1311.06:455:43
1410.96:475:42
1510.96:485:40
1610.86:495:39
1710.86:505:37
1810.76:515:35
1910.76:535:34
2010.66:545:32
2110.66:555:31
2210.66:565:29
2310.56:585:28
2410.56:595:26
2510.47:005:25
2610.47:015:24
2710.37:035:22
2810.37:045:21
2910.27:055:20
3010.27:065:18
3110.27:085:17

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.94 kWh/m².

For context, solar energy here swings from a low near 1.45 kWh/m² to a high of 6.53 kWh/m² in June across the year — October's 2.94 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.6Moderate
33.6Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.4Moderate
83.4Moderate
93.3Moderate
103.3Moderate
113.2Moderate
123.2Moderate
133.1Moderate
143.1Moderate
153.0Moderate
163.0Moderate
172.9Moderate
182.8Moderate
192.8Moderate
202.7Moderate
212.7Moderate
222.6Moderate
232.6Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.3Moderate
312.3Moderate
Planning a trip in October

Is October a good time to visit Chatham?

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

4.6
Sightseeing
6th-best month of the year
0.8
Beach & pool
6th-best month of the year

October is a reasonable time to visit Chatham for sightseeing.

What to pack for Chatham in October

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

In October, Chatham sees daytime highs around 15°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Chatham in October

The nearest coast averages about 16°C in October — 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.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr5Bracing
May11Bracing
Jun18Cool
Jul23Refreshing
Aug24Refreshing
Sep21Refreshing
Oct16Cool
Nov10Bracing
Dec5Bracing

UV index in Chatham in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3 — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 21UV 9Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

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.

3 km
27 m
16 km
62 m
80 km
159 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Leamington 53 km · Kingsville 57 km · Tecumseh 58 km · Saint Clair Shores 59 km · Grosse Pointe Woods 59 km · Mount Clemens 60 km · Roseville 62 km · Clinton Township 63 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
Christian 53%none 35%Muslim 5%Hindu 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 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).