Ancaster weather in October

In October, Ancaster sees average daytime highs of 14°C and overnight lows near 6°C, with 78 mm of precipitation across 10.9 wet days and about 10.8 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 11°C by the end. The sky is clear or mostly clear about 24% 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 06 min by month's end. Set against the rest of the year, October is Ancaster's 6th-clearest and 7th-windiest month. For the whole year in context, see Ancaster's year-round climate.

Daytime high
14°
6th warmest
Overnight low
7th coldest
Precipitation
78 mm
10.9 wet days
Daylight
10 h 48 min
6:41 AM – 5:29 PM
Cloud cover
64%
6th clearest
Wind
13 km/h
7th windiest
Solar energy
2.71 kWh/m²
Travel score
4.1
out of 10

Ancaster is former town in Hamilton, Ontario, Canada.

Density
230/km²
people per km²

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 17°C in the first days to 11°C by the end.

A typical October day in Ancaster reaches about 14°C in the afternoon and slips back to 6°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 20°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)
1189
2188
3188
4178
5178
6178
7177
8167
9167
10167
11167
12156
13156
14156
15156
16146
17146
18145
19145
20135
21135
22135
23124
24124
25124
26124
27124
28114
29113
30113
31113

How October really feels in Ancaster

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 3 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
3
wind chill below the day's low

The story in October is cold — wind chill drags the overnight "feels like" below the raw low.

Ancaster weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -9°6410.88.29.20.0
Feb-0° / -8°528.26.410.20.0
Mar / -4°659.94.611.60.4
Apr12° / 8911.81.913.23.1
May19° / 8511.6014.45.7
Jun24° / 14°9212.1015.16.5
Jul26° / 16°8410.6014.96.5
Aug25° / 16°7510013.86.8
Sep21° / 12°759.4012.36.7
Oct14° / 7810.90.110.84.1
Nov / 719.92.59.51.1
Dec / -5°6310.16.58.90.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44654
54555
64555
74555
84555
94555
104456
114456
124456
134357
144258
154159
164159
174060
183862
193862
203763
213664
223565
233466
243466
253466
263466
273466
283367
293466
303466
313466

Chance of precipitation in October

Any precipitationSnow

Ancaster gets around 78 mm of rain and snow over 10.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 35% and peaks near 37% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1360
2360
3360
4350
5350
6340
7340
8340
9330
10330
11330
12330
13330
14330
15330
16340
17350
18350
19360
20360
21370
22371
23371
24371
25371
26371
27371
28361
29362
30352
31342

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 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1791371
2801361
3801361
4821251
5821251
6831241
7841141
8851131
9861031
10861031
1187931
1288921
1389821
1491720
1591720
1693610
1793610
1894510
1994510
2095410
2195410
2295410
2396310
2497300
2597300
2697300
2797300
2897300
2998200
3098200
3198200

Wind in October

Winds average 13 km/h in October.

Across October, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over October. Sunrise moves from 6:23 AM to 7:00 AM, and sunset from 5:55 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:235:55
211.56:245:53
311.46:255:51
411.46:265:49
511.36:285:48
611.36:295:46
711.26:305:44
811.26:315:42
911.16:335:41
1011.16:345:39
1111.06:355:37
1211.06:365:35
1310.96:375:34
1410.96:395:32
1510.86:405:30
1610.86:415:29
1710.76:425:27
1810.76:445:26
1910.76:455:24
2010.66:465:22
2110.66:485:21
2210.56:495:19
2310.56:505:18
2410.46:515:16
2510.46:535:15
2610.36:545:13
2710.36:555:12
2810.26:575:11
2910.26:585:09
3010.16:595:08
3110.17:005:07

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.71 kWh/m².

For context, solar energy here swings from a low near 1.34 kWh/m² to a high of 6.31 kWh/m² in June across the year — October's 2.71 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.4Moderate
33.4Moderate
43.3Moderate
53.3Moderate
63.2Moderate
73.2Moderate
83.1Moderate
93.1Moderate
103.0Moderate
113.0Moderate
122.9Moderate
132.9Moderate
142.8Moderate
152.8Moderate
162.7Moderate
172.7Moderate
182.6Moderate
192.6Moderate
202.5Moderate
212.5Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.2Moderate
292.2Moderate
302.2Moderate
312.1Moderate
Planning a trip in October

Is October a good time to visit Ancaster?

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

4.1
Sightseeing
6th-best month of the year
0.5
Beach & pool
6th-best month of the year

October is a reasonable time to visit Ancaster for sightseeing.

What to pack for Ancaster in October

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

In October, Ancaster sees daytime highs around 14°C and nights near 6°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Ancaster in October

The nearest coast averages about 13°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 34 km away) is warmest in August at about 21°C and coldest in February near 3°C.

It's comfortable for a long swim from Jul 22 to Sep 1 — about 1.4 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr4Bracing
May8Bracing
Jun15Cool
Jul20Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov8Bracing
Dec5Bracing

UV index in Ancaster 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 Ancaster peaks around June 22 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 22UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul8Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Ancaster in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Ancaster is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1515 µg/m³Nov 218 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar13Moderate
Apr13Moderate
May14Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep13Moderate
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Ancaster?

Ancaster sits at 43.2°N, 80.0°W, 253 m above sea level, in Canada. The nearest listed city is Hamilton, 12 km away.

Topography around Ancaster

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

Within 3 km, the terrain around Ancaster has only modest variations in elevation — a maximum elevation change of 162 m around an average of 230 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 227 m; within 80 km, significant variations in elevation — a maximum elevation change of 457 m.

The land around Ancaster is covered by trees (60%) within 3 km, cropland (35%) and trees (32%) within 16 km, and cropland (36%), water (26%) and trees (22%) within 80 km.

3 km
162 m
16 km
227 m
80 km
457 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Hamilton 12 km · Waterdown 15 km · Stoney Creek 18 km · Burlington 22 km · Brantford 25 km · Christopher-Champlain 29 km · Cambridge 31 km · Brant 31 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 Ancaster (43.2181°, -79.9872°, elevation 253 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).