Vernon weather in September

In September, Vernon sees average daytime highs of 18°C and overnight lows near 7°C, with 44 mm of precipitation across 8.3 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 16°C by the end. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Vernon's 3rd-clearest and 10th-windiest month. For the whole year in context, see Vernon's year-round climate.

Daytime high
18°
4th warmest
Overnight low
9th coldest
Precipitation
44 mm
8.3 wet days
Daylight
12 h 24 min
5:40 AM – 6:03 PM
Cloud cover
51%
3rd clearest
Wind
5 km/h
10th windiest
Solar energy
4.12 kWh/m²
Travel score
6.1
out of 10

Vernon is city in British Columbia, Canada.

Air quality
Good
PM2.5 8 µg/m³ · 2019
Density
419/km²
people per km²
Founded
1892

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 16°C by the end.

A typical September day in Vernon reaches about 18°C in the afternoon and slips back to 7°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 25°C. Set against its neighbours, September runs about 6°C cooler than August and about 8°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1219
2219
3219
4218
5208
6208
7208
8208
9208
10198
11197
12197
13197
14197
15187
16187
17187
18186
19186
20176
21176
22176
23176
24176
25165
26165
27165
28165
29155
30155

How September really feels in Vernon

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.

Vernon weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -8°481212.28.30.0
Feb / -7°349.18.79.70.0
Mar / -4°4511.38.211.50.4
Apr11° / 4410.53.613.52.6
May17° / 6111.90.815.25.0
Jun20° / 6411.3016.15.9
Jul24° / 11°407.6015.77.4
Aug24° / 11°316.4014.37.6
Sep18° / 448.30.212.46.1
Oct10° / 6011.62.410.52.3
Nov / -3°6713.510.58.80.0
Dec-1° / -7°5212.513.47.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 46%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55941
65941
75941
85941
95842
105743
115743
125644
135545
145545
155446
165446
175347
185248
195248
205248
215149
225149
235149
245149
255149
265149
275050
285050
295050
304951

Chance of precipitation in September

Any precipitation

Vernon gets around 44 mm of rain and snow over 8.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 28% and peaks near 29% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202530
Rain chance (%)
126
226
327
427
527
627
728
828
928
1028
1128
1228
1329
1429
1528
1628
1728
1828
1928
2028
2128
2228
2328
2428
2528
2627
2727
2827
2928
3028

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 5:17 AM to 6:02 AM, and sunset from 6:37 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:176:37
213.35:186:34
313.25:206:32
413.15:226:30
513.15:236:28
613.05:256:26
713.05:266:23
812.95:286:21
912.85:296:19
1012.85:316:16
1112.75:326:14
1212.65:346:12
1312.65:366:09
1412.55:376:07
1512.45:396:05
1612.45:406:03
1712.35:426:00
1812.25:435:58
1912.25:455:56
2012.15:475:53
2112.05:485:51
2212.05:505:49
2311.95:515:46
2411.95:535:44
2511.85:545:42
2611.75:565:40
2711.75:585:37
2811.65:595:35
2911.56:015:33
3011.56:025:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.12 kWh/m².

For context, solar energy here swings from a low near 0.93 kWh/m² to a high of 6.85 kWh/m² in July across the year — September's 4.12 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.7Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.2Bright
154.1Bright
164.1Bright
174.0Bright
184.0Moderate
193.9Moderate
203.9Moderate
213.8Moderate
223.7Moderate
233.7Moderate
243.6Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.3Moderate
Planning a trip in September

Is September a good time to visit Vernon?

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

6.1
Sightseeing
3rd-best month of the year
2.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Vernon for sightseeing.

What to pack for Vernon in September

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

In September, Vernon sees daytime highs around 18°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 8 days see rain.

a warm layerrain gear

UV index in Vernon in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vernon peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 14 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 highHighModerateLowJul 17UV 8Dec 14UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Vernon in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Vernon is worst in August — around 22 µg/m³ PM2.5 (moderate), about 10.1× the cleanest month (January, 2 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Vernon's WHO annual average of 8 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodAug 1221 µg/m³Jan 192 µg/m³
PM2.5 (µg/m³)Level
Jan2Good
Feb3Good
Mar3Good
Apr3Good
May3Good
Jun4Good
Jul17Moderate
Aug22Moderate
Sep4Good
Oct20Moderate
Nov13Moderate
Dec3Good
Location & terrain

Where is Vernon?

Vernon sits at 50.3°N, 119.3°W, 383 m above sea level, in Canada. The nearest listed city is Lake Country, 30 km away.

Topography around Vernon

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

Within 3 km, the terrain around Vernon has significant variations in elevation — a maximum elevation change of 441 m around an average of 448 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,346 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,289 m.

The land around Vernon is covered by grassland (38%) and artificial surfaces (37%) within 3 km, trees (60%) and grassland (22%) within 16 km, and trees (78%) within 80 km.

3 km
441 m
16 km
1,346 m
80 km
2,289 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Lake Country 30 km · Rutland 42 km · Kelowna 45 km · Salmon Arm 48 km · West Kelowna 50 km · Okanagan Mission 52 km · Kamloops 86 km · Penticton 90 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 Vernon (50.2673°, -119.2734°, elevation 383 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. 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).