Collingwood weather in September

In September, Collingwood sees average daytime highs of 19°C and overnight lows near 14°C, with 99 mm of rain across 12.5 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 17°C by the end. The sky is clear or mostly clear about 34% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Collingwood's 4th-clearest and 8th-windiest month. For the whole year in context, see Collingwood's year-round climate.

Daytime high
19°
3rd warmest
Overnight low
14°
10th coldest
Rainfall
99 mm
12.5 wet days
Daylight
12 h 18 min
6:06 AM – 6:24 PM
Cloud cover
56%
4th clearest
Wind
16 km/h
8th windiest
Solar energy
3.92 kWh/m²
Travel score
5.7
out of 10

Collingwood is town in Simcoe County, Ontario, Canada.

Founded
1840

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 17°C by the end.

A typical September day in Collingwood reaches about 19°C in the afternoon and slips back to 14°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°C. Set against its neighbours, September runs about 3°C cooler than August and about 7°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12117
22116
32116
42116
52116
62116
72116
82116
92015
102015
112015
122015
132015
142014
151914
161914
171914
181914
191914
201813
211813
221813
231813
241812
251712
261712
271712
281712
291611
301611

How September really feels in Collingwood

Once humidity and wind are folded in, September 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

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

Collingwood weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -8°8614.815.290.0
Feb-3° / -10°59101010.10.0
Mar / -6°6911.37.511.60.0
Apr / 9511.54.213.20.5
May12° / 9410.90.214.63.0
Jun18° / 14°8710.9015.35.7
Jul22° / 18°8412.60156.5
Aug22° / 18°9312.7013.96.5
Sep19° / 14°9912.5012.35.7
Oct12° / 11416.30.610.72.9
Nov / 11416.17.89.40.4
Dec / -3°9817.514.98.70.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25842
35842
45941
55941
65842
75743
85644
95644
105545
115545
125446
135446
145347
155347
165248
175248
185149
195149
205149
215050
225050
234852
244852
254753
264753
274654
284654
294555
304654

Chance of precipitation in September

Any precipitation

Collingwood gets around 99 mm of rain over 12.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
138
238
338
439
539
640
740
841
941
1041
1142
1242
1342
1441
1541
1641
1741
1841
1941
2041
2141
2242
2342
2443
2544
2645
2745
2846
2947
3047

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1342626131
2362625121
3382624121
4402623110
5412522110
6432521100
7452520100
8462520100
948241990
1049241890
1150241880
1252241770
1353241670
1454241660
1554241660
1656241550
1758231540
1859231440
1960231430
2062221330
2163221230
2264221220
2366211120
2468201020
257020910
267219810
277318810
287418710
297617610
307716610

Wind in September

Winds average 16 km/h in September.

Across September, daily wind ranges from about 15 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over September. Sunrise moves from 5:48 AM to 6:23 AM, and sunset from 6:53 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:486:53
213.05:496:51
313.05:506:49
412.95:526:47
512.95:536:46
612.85:546:44
712.85:556:42
812.75:566:40
912.75:586:38
1012.65:596:36
1112.66:006:34
1212.56:016:32
1312.56:026:30
1412.46:046:28
1512.46:056:26
1612.36:066:24
1712.36:076:22
1812.26:096:20
1912.16:106:18
2012.16:116:16
2112.06:126:15
2212.06:136:13
2311.96:156:11
2411.96:166:09
2511.86:176:07
2611.86:186:05
2711.76:206:03
2811.76:216:01
2911.66:225:59
3011.66:235:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.92 kWh/m².

For context, solar energy here swings from a low near 1.08 kWh/m² to a high of 6.26 kWh/m² in June across the year — September's 3.92 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.5Bright
44.5Bright
54.4Bright
64.4Bright
74.3Bright
84.3Bright
94.2Bright
104.2Bright
114.1Bright
124.1Bright
134.0Bright
144.0Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.7Moderate
203.7Moderate
213.6Moderate
223.6Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.2Moderate
Planning a trip in September

Is September a good time to visit Collingwood?

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

5.7
Sightseeing
3rd-best month of the year
2.6
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Collingwood for sightseeing.

What to pack for Collingwood in September

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

In September, Collingwood sees daytime highs around 19°C and nights near 14°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Collingwood in September

The nearest coast averages about 19°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in August at about 21°C and coldest in March near 1°C.

It's comfortable for a long swim from Aug 9 to Aug 24 — about 0.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan3Bracing
Feb2Bracing
Mar1Bracing
Apr2Bracing
May5Bracing
Jun11Bracing
Jul19Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov9Bracing
Dec6Bracing

UV index in Collingwood in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Collingwood peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 21UV 8Jan 12UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May7High
Jun8Very high
Jul8Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Collingwood?

Collingwood sits at 44.5°N, 80.2°W, 194 m above sea level, in Canada. The nearest listed city is Wasaga Beach, 16 km away.

Topography around Collingwood

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

Within 3 km, the terrain around Collingwood has only modest variations in elevation — a maximum elevation change of 66 m around an average of 198 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 374 m; within 80 km, significant variations in elevation — a maximum elevation change of 371 m.

The land around Collingwood is covered by trees (31%) and grassland (25%) within 3 km, water (39%) and trees (31%) within 16 km, and trees (38%), water (28%) and cropland (24%) within 80 km.

3 km
66 m
16 km
374 m
80 km
371 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Wasaga Beach 16 km · Midland 40 km · Barrie 45 km · Alliston 46 km · Innisfil 49 km · Owen Sound 58 km · Orangeville 64 km · Orillia 65 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 Collingwood (44.4834°, -80.2164°, elevation 194 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).