Kitchener weather in September

In September, Kitchener sees average daytime highs of 20°C and overnight lows near 10°C, with 79 mm of rain across 9.6 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-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 32% 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 Kitchener's 3rd-clearest and 10th-windiest month. For the whole year in context, see Kitchener's year-round climate.

Daytime high
20°
4th warmest
Overnight low
10°
9th coldest
Rainfall
79 mm
9.6 wet days
Daylight
12 h 18 min
6:08 AM – 6:25 PM
Cloud cover
57%
3rd clearest
Wind
11 km/h
10th windiest
Solar energy
4.08 kWh/m²
Travel score
6.4
out of 10

Kitchener is city in Ontario, Canada.

Air quality
Good
PM2.5 7 µg/m³ · 2019
Founded
1833

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 Kitchener reaches about 20°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)
12313
22313
32313
42313
52312
62212
72212
82212
92212
102212
112211
122111
132111
142111
152110
162110
172010
182010
192010
20209
21199
22199
23199
24199
25188
26188
27188
28188
29178
30177

How September really feels in Kitchener

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.

Kitchener weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -10°6811.610.79.10.0
Feb-1° / -10°549.1810.20.0
Mar / -5°6310611.60.3
Apr12° / 8611.82.613.22.8
May18° / 8811.6014.55.5
Jun23° / 13°9411.4015.26.6
Jul25° / 15°8511014.96.7
Aug24° / 14°769.9013.87.0
Sep20° / 10°799.6012.36.4
Oct13° / 8011.30.410.83.6
Nov / -1°7411.24.39.50.6
Dec / -6°6511.49.38.80.0

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 18% of September, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25644
35644
45644
55644
65545
75545
85347
95347
105347
115248
125149
135050
145050
155149
165149
175050
185050
195050
205050
214951
224852
234852
244753
254753
264753
274654
284555
294555
304555

Chance of precipitation in September

Any precipitation

Kitchener gets around 79 mm of rain over 9.6 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 32% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
131
231
331
432
532
632
732
832
932
1032
1132
1232
1331
1431
1531
1630
1730
1830
1930
2030
2130
2231
2332
2433
2534
2635
2735
2836
2936
3036

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1442620101
2452619101
347251891
448251791
550251691
651241681
752241581
853241580
956231470
1056231470
1158231360
1258231360
1359221360
1461221250
1561221250
1663211240
1764201240
1866191140
1967191130
2068181130
2171171020
2272161020
237316920
247415920
257714810
267714810
277913710
288012710
298211610
308211610

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
2612light breeze
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 5:50 AM to 6:24 AM, and sunset from 6:53 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:506:53
213.05:526:51
312.95:536:49
412.95:546:48
512.85:556:46
612.85:566:44
712.75:576:42
812.75:586:40
912.66:006:38
1012.66:016:36
1112.56:026:35
1212.56:036:33
1312.46:046:31
1412.46:056:29
1512.36:066:27
1612.36:086:25
1712.26:096:23
1812.26:106:21
1912.16:116:19
2012.16:126:18
2112.06:136:16
2212.06:156:14
2311.96:166:12
2411.96:176:10
2511.86:186:08
2611.86:196:06
2711.76:206:04
2811.76:226:02
2911.66:236:01
3011.66:245:59

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 1.29 kWh/m² to a high of 6.24 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
24.6Bright
34.6Bright
44.5Bright
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
213.9Moderate
223.8Moderate
233.8Moderate
243.7Moderate
253.7Moderate
263.6Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.4Moderate
Planning a trip in September

Is September a good time to visit Kitchener?

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

6.4
Sightseeing
4th-best month of the year
3.6
Beach & pool
4th-best month of the year

September is a reasonable time to visit Kitchener for sightseeing.

What to pack for Kitchener in September

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

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

rain gear

UV index in Kitchener 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 Kitchener peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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 22UV 9Jan 11UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun9Very high
Jul8Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Kitchener?

Kitchener sits at 43.4°N, 80.5°W, 336 m above sea level, in Canada. The nearest listed city is Forest Heights, 1.0 km away.

Topography around Kitchener

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

Within 3 km, the terrain around Kitchener has only modest variations in elevation — a maximum elevation change of 88 m around an average of 347 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 168 m; within 80 km, significant variations in elevation — a maximum elevation change of 461 m.

The land around Kitchener is covered by artificial surfaces (52%) and trees (32%) within 3 km, cropland (42%) and trees (29%) within 16 km, and cropland (58%) and trees (25%) within 80 km.

3 km
88 m
16 km
168 m
80 km
461 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Forest Heights 1.0 km · Waterloo 5.0 km · Hespeler 16 km · Cambridge 18 km · Fiddlesticks 18 km · Christopher-Champlain 19 km · Guelph 25 km · Fergus 33 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 Kitchener (43.4254°, -80.5112°, elevation 336 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).