Salmon Arm weather in September

In September, Salmon Arm sees average daytime highs of 19°C and overnight lows near 10°C, with 63 mm of rain across 10 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 7th-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 32% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Salmon Arm's 3rd-clearest and 12th-windiest month. For the whole year in context, see Salmon Arm's year-round climate.

Daytime high
19°
4th warmest
Overnight low
10°
10th coldest
Rainfall
63 mm
10 wet days
Daylight
12 h 24 min
5:40 AM – 6:03 PM
Cloud cover
55%
3rd clearest
Wind
3 km/h
12th windiest
Solar energy
3.92 kWh/m²
Travel score
6.0
out of 10

Salmon Arm is city in British Columbia, Canada.

Density
125/km²
people per km²
Founded
1905

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 Salmon Arm reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 25°C. Set against its neighbours, September runs about 5°C cooler than August and about 8°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52111
62011
72011
82011
92011
102011
112011
121910
131910
141910
151910
161910
171910
181810
19189
20189
21189
22189
23179
24179
25178
26178
27168
28168
29168
30167

How September really feels in Salmon Arm

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.

Salmon Arm 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-1° / -5°6513.913.58.30.0
Feb / -5°4310.38.79.70.0
Mar / -2°5412.67.711.50.6
Apr11° / 4910.12.413.52.7
May17° / 6511.30.415.25.2
Jun20° / 10°6411.2016.25.9
Jul24° / 13°457.9015.87.4
Aug24° / 13°387014.37.5
Sep19° / 10°6310012.46.0
Oct11° / 8313.91.710.42.5
Nov / -0°9016108.70.1
Dec / -4°7014.715.27.80.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% 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%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25644
35644
45644
55644
65545
75545
85545
95545
105446
115347
125347
135248
145248
155149
165149
175149
185050
195050
204951
214951
224951
234951
244951
254951
264951
274852
284852
294852
304654

Chance of precipitation in September

Any precipitation

Salmon Arm gets around 63 mm of rain over 10 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 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
131
232
332
433
533
633
734
834
934
1034
1135
1235
1335
1435
1535
1634
1734
1834
1934
2033
2133
2233
2333
2433
2532
2632
2732
2832
2932
3032

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 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19181
29181
39091
49091
59091
69091
79091
89091
99091
109091
119091
129181
139280
149280
159370
169370
179460
189460
199550
209550
219640
229640
239730
249820
259820
269820
279910
289910
299910
309910

Wind in September

Winds average 3 km/h in September, the calmest month.

Across September, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 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 114 minutes over September. Sunrise moves from 5:16 AM to 6:03 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)
113.45:166:37
213.35:186:35
313.25:196:33
413.25:216:31
513.15:236:28
613.05:246:26
713.05:266:24
812.95:276:21
912.85:296:19
1012.85:316:17
1112.75:326:14
1212.65:346:12
1312.65:356:10
1412.55:376:07
1512.45:386:05
1612.45:406:03
1712.35:426:00
1812.25:435:58
1912.25:455:56
2012.15:465:53
2112.05:485:51
2212.05:505:49
2311.95:515:46
2411.95:535:44
2511.85:555:42
2611.75:565:39
2711.75:585:37
2811.65:595:35
2911.56:015:32
3011.56:035:30

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 0.79 kWh/m² to a high of 6.7 kWh/m² in July across the year — September's 3.92 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.4Bright
84.3Bright
94.3Bright
104.2Bright
114.2Bright
124.1Bright
134.1Bright
144.0Bright
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.7Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.4Moderate
253.4Moderate
263.3Moderate
273.3Moderate
283.2Moderate
293.1Moderate
303.1Moderate
Planning a trip in September

Is September a good time to visit Salmon Arm?

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

6.0
Sightseeing
3rd-best month of the year
2.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Salmon Arm for sightseeing.

What to pack for Salmon Arm in September

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

In September, Salmon Arm sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Salmon Arm 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 Salmon Arm 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 15 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 15UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Salmon Arm 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 Salmon Arm is worst in August — around 91 µg/m³ PM2.5 (unhealthy), about 27.5× the cleanest month (January, 3 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecGoodUnhealthyModerateAug 1188 µg/m³Jan 164 µg/m³
PM2.5 (µg/m³)Level
Jan3Good
Feb5Good
Mar6Good
Apr7Good
May8Good
Jun9Good
Jul79Unhealthy
Aug91Unhealthy
Sep14Moderate
Oct30Moderate
Nov35Poor
Dec5Good
Location & terrain

Where is Salmon Arm?

Salmon Arm sits at 50.7°N, 119.3°W, 427 m above sea level, in Canada. The nearest listed city is Vernon, 48 km away.

Topography around Salmon Arm

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

Within 3 km, the terrain around Salmon Arm has large variations in elevation — a maximum elevation change of 645 m around an average of 463 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,398 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,492 m.

The land around Salmon Arm is covered by trees (40%) and grassland (21%) within 3 km, trees (74%) within 16 km, and trees (78%) within 80 km.

3 km
645 m
16 km
1,398 m
80 km
2,492 m
treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen
September weather nearby: Vernon 48 km · Kamloops 74 km · Lake Country 77 km · Brocklehurst 81 km · Rutland 89 km · Kelowna 92 km · West Kelowna 96 km · Okanagan Mission 99 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 Salmon Arm (50.6998°, -119.2691°, elevation 427 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).