Saskatoon weather in September

In September, Saskatoon sees average daytime highs of 18°C and overnight lows near 6°C, with 38 mm of precipitation across 5.7 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 15°C by the end. The sky is clear or mostly clear about 35% 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 24 min by month's end. Set against the rest of the year, September is Saskatoon's 3rd-clearest and 4th-windiest month. For the whole year in context, see Saskatoon's year-round climate.

Daytime high
18°
4th warmest
Overnight low
9th coldest
Precipitation
38 mm
5.7 wet days
Daylight
12 h 24 min
6:49 AM – 7:13 PM
Cloud cover
55%
3rd clearest
Wind
14 km/h
4th windiest
Solar energy
3.77 kWh/m²
Travel score
6.3
out of 10

Saskatoon is largest city in Saskatchewan, Canada.

Air quality
Good
PM2.5 8 µg/m³ · 2019
Density
1,558/km²
people per km²
Founded
1882

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 15°C by the end.

A typical September day in Saskatoon reaches about 18°C in the afternoon and slips back to 6°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 26°C. Set against its neighbours, September runs about 6°C cooler than August and about 9°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1219
2218
3218
4218
5218
6208
7207
8207
9197
10197
11197
12196
13196
14186
15186
16185
17185
18175
19175
20175
21175
22174
23164
24164
25164
26164
27163
28153
29153
30153

How September really feels in Saskatoon

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 4 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
4
wind chill below the day's low

The story in September is cold — wind chill drags the overnight "feels like" below the raw low.

Saskatoon 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-11° / -19°154.85.480.0
Feb-9° / -18°113.43.89.50.0
Mar-1° / -11°185.14.611.50.0
Apr10° / -2°316.92.813.62.2
May17° / 467.80.615.45.7
Jun21° / 10°8711.9016.46.1
Jul24° / 12°7010.80166.9
Aug24° / 11°507.6014.47.4
Sep18° / 385.70.212.46.3
Oct / -1°275.8210.42.1
Nov-1° / -9°194.74.78.50.0
Dec-8° / -17°123.94.57.60.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25446
35248
45149
55149
65050
75050
84951
94951
104951
114852
124951
134753
144753
154951
165050
175050
185050
195050
205149
215149
225248
235248
245248
255248
265248
275347
285347
295248
305248

Chance of precipitation in September

Any precipitationSnow

Saskatoon gets around 38 mm of rain and snow over 5.7 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 19% and peaks near 20% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202530
Rain chance (%)Snow chance (%)
1190
2190
3190
4190
5190
6190
7190
8190
9200
10200
11200
12200
13200
14201
15201
16201
17201
18201
19201
20191
21191
22191
23191
24191
25192
26192
27182
28182
29182
30182

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1937
2946
3946
4955
5964
6964
7973
8973
9982
10982
11991
12991
13991
14991
15991
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 min at the start of September to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over September. Sunrise moves from 6:24 AM to 7:13 AM, and sunset from 7:49 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:247:49
213.46:257:47
313.36:277:44
413.26:297:42
513.26:307:40
613.16:327:37
713.06:347:35
812.96:367:32
912.96:377:30
1012.86:397:28
1112.76:417:25
1212.76:427:23
1312.66:447:20
1412.56:467:18
1512.56:477:15
1612.46:497:13
1712.36:517:10
1812.36:527:08
1912.26:547:06
2012.16:567:03
2112.16:587:01
2212.06:596:58
2311.97:016:56
2411.87:036:53
2511.87:046:51
2611.77:066:49
2711.67:086:46
2811.67:106:44
2911.57:116:41
3011.47:136:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.77 kWh/m².

For context, solar energy here swings from a low near 0.89 kWh/m² to a high of 6.28 kWh/m² in July across the year — September's 3.77 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.4Bright
44.4Bright
54.3Bright
64.3Bright
74.2Bright
84.1Bright
94.1Bright
104.0Bright
114.0Moderate
123.9Moderate
133.9Moderate
143.8Moderate
153.8Moderate
163.7Moderate
173.7Moderate
183.6Moderate
193.6Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.4Moderate
243.4Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.2Moderate
293.1Moderate
303.1Moderate
Planning a trip in September

Is September a good time to visit Saskatoon?

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

6.3
Sightseeing
3rd-best month of the year
2.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Saskatoon for sightseeing.

What to pack for Saskatoon in September

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

In September, Saskatoon sees daytime highs around 18°C and nights near 6°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

UV index in Saskatoon 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 Saskatoon peaks around June 21 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 17 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 21UV 6Dec 17UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5Moderate
Jun6High
Jul6High
Aug4Moderate
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Saskatoon 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 Saskatoon is worst in July — around 16 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (December, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 2016 µg/m³Dec 224 µg/m³
PM2.5 (µg/m³)Level
Jan4Good
Feb5Good
Mar9Good
Apr9Good
May9Good
Jun9Good
Jul16Moderate
Aug14Moderate
Sep8Good
Oct5Good
Nov5Good
Dec4Good
Location & terrain

Where is Saskatoon?

Saskatoon sits at 52.1°N, 106.7°W, 484 m above sea level, in Canada. The nearest listed city is Core Neighbourhoods, 0.0 km away.

Topography around Saskatoon

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

Within 3 km, the terrain around Saskatoon has only modest variations in elevation — a maximum elevation change of 42 m around an average of 497 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 118 m; within 80 km, significant variations in elevation — a maximum elevation change of 321 m.

The land around Saskatoon is covered by artificial surfaces (55%) and trees (23%) within 3 km, cropland (42%) and grassland (37%) within 16 km, and cropland (62%) and grassland (30%) within 80 km.

3 km
42 m
16 km
118 m
80 km
321 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Core Neighbourhoods 0.0 km · Confederation 2.0 km · Lawson 4.0 km · Nutana Sector 4.0 km · Lakewood 6.0 km · Stonebridge 6.0 km · University Heights 6.0 km · North Battleford 132 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 Saskatoon (52.1324°, -106.6689°, elevation 484 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).