Woodstock weather in September

In September, Woodstock sees average daytime highs of 21°C and overnight lows near 10°C, with 86 mm of rain across 9.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 18°C by the end. The sky is clear or mostly clear about 33% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Woodstock's 3rd-clearest and 10th-windiest month. For the whole year in context, see Woodstock's year-round climate.

Daytime high
21°
4th warmest
Overnight low
10°
9th coldest
Rainfall
86 mm
9.8 wet days
Daylight
12 h 18 min
6:09 AM – 6:26 PM
Cloud cover
56%
3rd clearest
Wind
11 km/h
10th windiest
Solar energy
4.15 kWh/m²
Travel score
6.5
out of 10

Woodstock is city in Oxford County, Ontario, Canada.

Founded
1851

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 23°C in the first days to 18°C by the end.

A typical September day in Woodstock reaches about 21°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 26°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12413
22313
32313
42313
52313
62312
72312
82212
92212
102212
112211
122211
132211
142111
152111
162110
172110
182110
192010
202010
21209
22209
23199
24199
25199
26198
27188
28188
29188
30188

How September really feels in Woodstock

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.

Woodstock weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -9°7111.810.59.20.0
Feb-1° / -9°569.38.210.20.0
Mar / -5°6610.46.111.60.3
Apr12° / 9112.12.513.12.9
May18° / 9512.1014.45.5
Jun24° / 13°10111.7015.16.6
Jul26° / 15°9611.6014.96.6
Aug25° / 14°8110.5013.86.9
Sep21° / 10°869.8012.36.5
Oct14° / 8411.60.310.83.8
Nov / -1°7510.84.19.50.8
Dec / -5°6711.698.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65446
75446
85446
95347
105347
115248
125248
135149
145248
155248
165149
175149
185149
195149
205050
215050
225050
235050
245050
254951
264951
274753
284753
294753
304753

Chance of precipitation in September

Any precipitation

Woodstock gets around 86 mm of rain over 9.8 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 33% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
132
232
333
433
533
633
733
833
933
1033
1133
1232
1332
1432
1531
1631
1731
1831
1931
2031
2131
2232
2333
2434
2535
2636
2737
2837
2938
3038

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1402719132
2422718122
3432617122
4452616112
5462616102
6482615101
749251591
851251491
951251491
1053241481
1154241381
1255241371
1355241371
1459231260
1559231260
1661221250
1761221250
1864211140
1965201140
2066191140
2168181130
2270171030
2372161020
247316920
257415920
267614820
277714810
287913710
298012710
308012710

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours 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 84 minutes over September. Sunrise moves from 5:52 AM to 6:25 AM, and sunset from 6:54 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:526:54
213.05:536:52
312.95:546:50
412.95:556:48
512.85:566:46
612.85:576:45
712.75:586:43
812.76:006:41
912.66:016:39
1012.66:026:37
1112.56:036:35
1212.56:046:34
1312.46:056:32
1412.46:066:30
1512.36:076:28
1612.36:096:26
1712.26:106:24
1812.26:116:22
1912.16:126:20
2012.16:136:18
2112.06:146:17
2212.06:156:15
2311.96:176:13
2411.96:186:11
2511.86:196:09
2611.86:206:07
2711.76:216:05
2811.76:226:04
2911.66:246:02
3011.66:256:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.15 kWh/m².

For context, solar energy here swings from a low near 1.32 kWh/m² to a high of 6.31 kWh/m² in June across the year — September's 4.15 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.4Bright
94.4Bright
104.3Bright
114.3Bright
124.3Bright
134.2Bright
144.2Bright
154.2Bright
164.1Bright
174.1Bright
184.0Bright
194.0Moderate
204.0Moderate
213.9Moderate
223.9Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.6Moderate
293.5Moderate
303.5Moderate
Planning a trip in September

Is September a good time to visit Woodstock?

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

6.5
Sightseeing
4th-best month of the year
3.9
Beach & pool
4th-best month of the year

September is a reasonable time to visit Woodstock for sightseeing.

What to pack for Woodstock in September

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

In September, Woodstock sees daytime highs around 21°C and nights near 10°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Woodstock in September

The nearest coast averages about 21°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 57 km away) is warmest in August at about 23°C and coldest in February near 1°C.

It's comfortable for a long swim from Jul 6 to Sep 19 — about 2.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr4Bracing
May10Bracing
Jun17Cool
Jul22Refreshing
Aug23Refreshing
Sep21Refreshing
Oct16Cool
Nov10Bracing
Dec6Bracing

UV index in Woodstock 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 Woodstock peaks around June 23 at about 9 (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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 9Jan 12UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun9Very high
Jul9Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec2Low
Location & terrain

Where is Woodstock?

Woodstock sits at 43.1°N, 80.7°W, 299 m above sea level, in Canada. The nearest listed city is Tillsonburg, 30 km away.

Topography around Woodstock

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

Within 3 km, the terrain around Woodstock has only modest variations in elevation — a maximum elevation change of 87 m around an average of 301 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 159 m; within 80 km, significant variations in elevation — a maximum elevation change of 419 m.

The land around Woodstock is covered by artificial surfaces (37%), trees (29%) and grassland (20%) within 3 km, cropland (66%) and trees (21%) within 16 km, and cropland (57%) and trees (20%) within 80 km.

3 km
87 m
16 km
159 m
80 km
419 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Tillsonburg 30 km · Stratford 31 km · Brant 32 km · Forest Heights 37 km · Kitchener 38 km · Brantford 39 km · Waterloo 42 km · London 43 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 Woodstock (43.1334°, -80.7497°, elevation 299 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).