Saint-Augustin-de-Desmaures weather in September

In September, Saint-Augustin-de-Desmaures sees average daytime highs of 19°C and overnight lows near 9°C, with 117 mm of rain across 11.9 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 16°C by the end. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Saint-Augustin-de-Desmaures's 2nd-clearest and 10th-windiest month. For the whole year in context, see Saint-Augustin-de-Desmaures's year-round climate.

Daytime high
19°
4th warmest
Overnight low
9th coldest
Rainfall
117 mm
11.9 wet days
Daylight
12 h 18 min
5:30 AM – 5:50 PM
Cloud cover
60%
2nd clearest
Wind
10 km/h
10th windiest
Solar energy
3.62 kWh/m²
Travel score
5.6
out of 10

Saint-Augustin-de-Desmaures is city in Quebec, Canada.

Density
165/km²
people per km²
Founded
1679

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 Saint-Augustin-de-Desmaures reaches about 19°C in the afternoon and slips back to 9°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°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
32111
42111
52111
62111
72011
82011
92010
102010
112010
121910
131910
14199
15199
16199
17189
18189
19188
20188
21188
22178
23178
24177
25177
26167
27167
28167
29167
30156

How September really feels in Saint-Augustin-de-Desmaures

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.

Saint-Augustin-de-Desmaures 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-7° / -16°8611.611.88.80.0
Feb-5° / -15°699.69.9100.0
Mar / -8°8410.88.511.60.0
Apr / -1°10711.84.713.31.6
May17° / 10713.50.414.85.0
Jun22° / 12°12512.9015.66.1
Jul24° / 15°13415015.36.1
Aug23° / 14°12413.70146.4
Sep19° / 11711.9012.45.6
Oct11° / 13012.71.310.62.6
Nov / -3°10312.86.79.20.1
Dec-3° / -11°10312.911.78.40.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
34951
44951
54852
64852
74852
84852
94753
104753
114753
124852
134852
144852
154753
164753
174753
184753
194654
204654
214654
224555
234357
244357
254357
264258
274258
284258
294159
304060

Chance of precipitation in September

Any precipitation

Saint-Augustin-de-Desmaures gets around 117 mm of rain over 11.9 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 40% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
339
439
540
640
740
840
941
1041
1141
1241
1342
1442
1542
1641
1741
1841
1941
2041
2141
2240
2340
2440
2540
2640
2740
2840
2940
3040

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15226157
25525146
35625136
45924125
55924125
66123115
76323104
86323104
9662293
10672193
11672193
12702082
13711982
14721882
15731872
16741772
17761671
18761671
19781561
20781561
21791461
22801451
23811351
24831241
25831241
26851131
27861031
28861031
2988921
3090820

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 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 102 minutes over September. Sunrise moves from 5:10 AM to 5:49 AM, and sunset from 6:21 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:106:21
213.15:126:19
313.15:136:17
413.05:146:15
513.05:166:13
612.95:176:11
712.85:186:09
812.85:206:07
912.75:216:05
1012.75:226:02
1112.65:246:00
1212.65:255:58
1312.55:265:56
1412.45:285:54
1512.45:295:52
1612.35:305:50
1712.35:325:48
1812.25:335:46
1912.25:345:44
2012.15:365:42
2112.05:375:40
2212.05:385:37
2311.95:405:35
2411.95:415:33
2511.85:425:31
2611.85:445:29
2711.75:455:27
2811.65:465:25
2911.65:485:23
3011.55:495:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.62 kWh/m².

For context, solar energy here swings from a low near 1.16 kWh/m² to a high of 5.79 kWh/m² in June across the year — September's 3.62 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.2Bright
44.2Bright
54.1Bright
64.1Bright
74.0Bright
84.0Moderate
93.9Moderate
103.9Moderate
113.8Moderate
123.8Moderate
133.7Moderate
143.7Moderate
153.6Moderate
163.6Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.4Moderate
213.4Moderate
223.3Moderate
233.3Moderate
243.2Moderate
253.1Moderate
263.1Moderate
273.0Moderate
283.0Moderate
293.0Moderate
302.9Moderate
Planning a trip in September

Is September a good time to visit Saint-Augustin-de-Desmaures?

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

5.6
Sightseeing
4th-best month of the year
2.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Saint-Augustin-de-Desmaures for sightseeing.

What to pack for Saint-Augustin-de-Desmaures in September

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

In September, Saint-Augustin-de-Desmaures sees daytime highs around 19°C and nights near 9°C. Worth packing: rain gear. About 12 days see rain.

rain gear

UV index in Saint-Augustin-de-Desmaures 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 Saint-Augustin-de-Desmaures peaks around July 13 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 10 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 7Jan 10UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun6High
Jul8Very high
Aug3Moderate
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Saint-Augustin-de-Desmaures?

Saint-Augustin-de-Desmaures sits at 46.7°N, 71.5°W, 78 m above sea level, in Canada. The nearest listed city is L'Ancienne-Lorette, 10 km away.

Topography around Saint-Augustin-de-Desmaures

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Augustin-de-Desmaures.

Within 3 km, the terrain around Saint-Augustin-de-Desmaures has only modest variations in elevation — a maximum elevation change of 100 m around an average of 45 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 489 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,208 m.

The land around Saint-Augustin-de-Desmaures is covered by trees (26%), cropland (26%) and water (24%) within 3 km, trees (55%) within 16 km, and trees (73%) within 80 km.

3 km
100 m
16 km
489 m
80 km
1,208 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: L'Ancienne-Lorette 10 km · Sainte-Foy 13 km · Neufchâtel-Est–Lebourgneuf 15 km · Les Rivières 16 km · La Haute-Saint-Charles 18 km · Quebec City 20 km · La Cité-Limoilou 20 km · Charlesbourg 21 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 Saint-Augustin-de-Desmaures (46.7406°, -71.4513°, elevation 78 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).