Orangeville weather in September

In September, Orangeville sees average daytime highs of 20°C and overnight lows near 10°C, with 74 mm of rain across 9.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 17°C by the end. The sky is clear or mostly clear about 29% 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 Orangeville's 3rd-clearest and 9th-windiest month. For the whole year in context, see Orangeville's year-round climate.

Daytime high
20°
4th warmest
Overnight low
10°
9th coldest
Rainfall
74 mm
9.9 wet days
Daylight
12 h 18 min
6:06 AM – 6:24 PM
Cloud cover
58%
3rd clearest
Wind
11 km/h
9th windiest
Solar energy
4.08 kWh/m²
Travel score
6.3
out of 10

Orangeville is town in Ontario, Canada.

Density
2,027/km²
people per km²
Founded
1863

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 17°C by the end.

A typical September day in Orangeville reaches about 20°C in the afternoon and slips back to 10°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 14°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)
12312
22312
32312
42212
52212
62211
72211
82211
92211
102111
112111
122110
132110
142110
152010
162010
17209
18209
19209
20199
21198
22198
23198
24188
25188
26188
27187
28177
29177
30177

How September really feels in Orangeville

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.

Orangeville weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -11°5810.19.99.10.0
Feb-2° / -11°498.17.810.20.0
Mar / -6°579.96.111.60.2
Apr11° / 8011.3313.22.6
May18° / 8511.9014.55.4
Jun23° / 12°9111.5015.26.5
Jul25° / 14°8411014.96.7
Aug24° / 14°8110.5013.86.9
Sep20° / 10°749.9012.36.3
Oct13° / 7511.50.610.83.4
Nov / -2°6910.74.59.40.5
Dec / -7°6010.998.80.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15446
25446
35446
45347
55347
65347
75149
85149
95149
105050
115050
125050
135050
144951
155050
164951
174951
184951
194852
204852
214852
224852
234753
244654
254555
264456
274456
284456
294456
304258

Chance of precipitation in September

Any precipitation

Orangeville gets around 74 mm of rain over 9.9 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 37% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
131
231
332
432
532
632
733
833
933
1033
1133
1232
1332
1432
1532
1631
1731
1831
1931
2031
2132
2232
2333
2434
2534
2635
2736
2836
2936
3037

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 68% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14925179
25025169
35225158
45424148
55524138
65723137
75823127
85922127
96122116
106122116
116421105
126421105
136520105
14672094
15681994
16691993
17701893
18711793
19721792
20731692
21751582
22761581
23771481
24791371
25791371
26811261
27811261
28831151
29831151
30851050

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
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812light breeze
2912light breeze
3012light 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 6:52 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:486:52
213.05:496:50
313.05:516:48
412.95:526:46
512.95:536:45
612.85:546:43
712.85:556:41
812.75:566:39
912.75:586:37
1012.65:596:35
1112.66:006:33
1212.56:016:31
1312.56:026:29
1412.46:036:27
1512.36:056:26
1612.36:066:24
1712.26:076:22
1812.26:086:20
1912.16:096:18
2012.16:116:16
2112.06:126:14
2212.06:136:12
2311.96:146:10
2411.96:156:08
2511.86:166:06
2611.86:186:04
2711.76:196:03
2811.76:206:01
2911.66:215:59
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 4.08 kWh/m².

For context, solar energy here swings from a low near 1.26 kWh/m² to a high of 6.29 kWh/m² in June across the year — September's 4.08 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.4Bright
84.4Bright
94.3Bright
104.3Bright
114.3Bright
124.2Bright
134.2Bright
144.1Bright
154.1Bright
164.0Bright
174.0Bright
184.0Moderate
193.9Moderate
203.9Moderate
213.8Moderate
223.8Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.5Moderate
283.5Moderate
293.4Moderate
303.4Moderate
Planning a trip in September

Is September a good time to visit Orangeville?

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

6.3
Sightseeing
4th-best month of the year
3.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Orangeville for sightseeing.

What to pack for Orangeville in September

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

In September, Orangeville sees daytime highs around 20°C and nights near 10°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Orangeville 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 67 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 20 to Sep 2 — about 1.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr4Bracing
May7Bracing
Jun15Bracing
Jul20Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov8Bracing
Dec5Bracing

UV index in Orangeville 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 Orangeville peaks around June 23 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul8Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Orangeville?

Orangeville sits at 43.9°N, 80.1°W, 443 m above sea level, in Canada. The nearest listed city is Caledon, 10 km away.

Topography around Orangeville

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

Within 3 km, the terrain around Orangeville has only modest variations in elevation — a maximum elevation change of 90 m around an average of 446 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 269 m; within 80 km, significant variations in elevation — a maximum elevation change of 473 m.

The land around Orangeville is covered by trees (40%) and artificial surfaces (24%) within 3 km, trees (42%), cropland (35%) and grassland (20%) within 16 km, and cropland (37%) and trees (34%) within 80 km.

3 km
90 m
16 km
269 m
80 km
473 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Caledon 10 km · Bolton 29 km · Alliston 32 km · Fergus 32 km · Georgetown 33 km · Halton Hills 34 km · Brampton 37 km · Guelph 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 Orangeville (43.9168°, -80.0997°, elevation 443 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).