Prince George weather in September

In September, Prince George sees average daytime highs of 17°C and overnight lows near 6°C, with 54 mm of precipitation across 9.8 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 14°C by the end. The sky is clear or mostly clear about 24% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Prince George's 3rd-clearest and 9th-windiest month. For the whole year in context, see Prince George's year-round climate.

Daytime high
17°
5th warmest
Overnight low
9th coldest
Precipitation
54 mm
9.8 wet days
Daylight
12 h 24 min
5:53 AM – 6:18 PM
Cloud cover
62%
3rd clearest
Wind
8 km/h
9th windiest
Solar energy
3.45 kWh/m²
Travel score
5.2
out of 10

Prince George is city in British Columbia, Canada.

Air quality
Elevated
PM2.5 16 µg/m³ · 2018
Density
248/km²
people per km²
Founded
1807

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 19°C in the first days to 14°C by the end.

A typical September day in Prince George reaches about 17°C in the afternoon and slips back to 6°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 23°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)
1198
2198
3198
4197
5187
6187
7187
8187
9187
10186
11186
12176
13176
14176
15176
16175
17165
18165
19165
20165
21165
22165
23155
24154
25154
26154
27144
28144
29144
30133

How September really feels in Prince George

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.

Prince George weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-4° / -11°5412.111.17.70.0
Feb-1° / -9°308.37.39.40.0
Mar / -5°359.36.311.50.4
Apr11° / 3892.113.72.8
May17° / 4090.515.75.3
Jun20° / 5310016.86.1
Jul23° / 11°5310016.36.8
Aug22° / 10°418.3014.66.9
Sep17° / 549.80.112.55.2
Oct / 7613.72.810.21.6
Nov / -5°6713.79.88.30.0
Dec-3° / -9°4610.310.47.20.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% 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 58%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
24060
34060
44159
54159
64258
74258
84258
94357
104357
114456
124456
134357
144357
154357
164357
174357
184357
194357
204258
214258
224258
234159
244159
254159
264159
274159
284159
294159
304060

Chance of precipitation in September

Any precipitation

Prince George gets around 54 mm of rain and snow over 9.8 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 33% and peaks near 36% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
335
435
534
634
733
833
932
1032
1132
1232
1332
1432
1532
1632
1732
1832
1932
2032
2132
2233
2333
2433
2533
2633
2734
2834
2934
3035

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
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 30 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 126 minutes over September. Sunrise moves from 5:25 AM to 6:19 AM, and sunset from 6:56 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:256:56
213.45:276:54
313.45:296:51
413.35:316:49
513.25:326:46
613.25:346:44
713.15:366:41
813.05:386:39
912.95:406:36
1012.95:426:34
1112.85:436:31
1212.75:456:28
1312.65:476:26
1412.65:496:23
1512.55:516:21
1612.45:536:18
1712.45:546:15
1812.35:566:13
1912.25:586:10
2012.16:006:08
2112.16:026:05
2212.06:046:03
2311.96:066:00
2411.86:075:57
2511.86:095:55
2611.76:115:52
2711.66:135:50
2811.56:155:47
2911.56:175:45
3011.46:195:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.45 kWh/m².

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 6.25 kWh/m² in June across the year — September's 3.45 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.0Bright
44.0Bright
54.0Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.7Moderate
113.7Moderate
123.6Moderate
133.6Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.4Moderate
183.3Moderate
193.3Moderate
203.2Moderate
213.2Moderate
223.1Moderate
233.1Moderate
243.0Moderate
253.0Moderate
262.9Moderate
272.9Moderate
282.8Moderate
292.8Moderate
302.7Moderate
Planning a trip in September

Is September a good time to visit Prince George?

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

5.2
Sightseeing
5th-best month of the year
1.2
Beach & pool
5th-best month of the year

September is a reasonable time to visit Prince George for sightseeing.

What to pack for Prince George in September

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

In September, Prince George sees daytime highs around 17°C and nights near 6°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Prince George in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Prince George peaks around July 13 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 7Dec 19UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5Moderate
Jun6High
Jul7High
Aug3Moderate
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Prince George 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 Prince George is worst in October — around 37 µg/m³ PM2.5 (poor), about 18.9× the cleanest month (January, 2 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Prince George's WHO annual average of 16 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModeratePoorOct 2437 µg/m³Jan 212 µg/m³
PM2.5 (µg/m³)Level
Jan2Good
Feb3Good
Mar5Good
Apr5Good
May25Moderate
Jun6Good
Jul27Moderate
Aug20Moderate
Sep19Moderate
Oct37Poor
Nov37Poor
Dec6Good
Location & terrain

Where is Prince George?

Prince George sits at 53.9°N, 122.8°W, 578 m above sea level, in Canada. The nearest listed city is Fort St. John, 286 km away.

Fort St. JohnJasperTerraceBrocklehurstKamloopsWhistlerSalmon Arm

Topography around Prince George

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

Within 3 km, the terrain around Prince George has only modest variations in elevation — a maximum elevation change of 160 m around an average of 603 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 412 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,438 m.

The land around Prince George is covered by trees (42%) and artificial surfaces (34%) within 3 km, trees (73%) within 16 km, and trees (87%) within 80 km.

3 km
160 m
16 km
412 m
80 km
1,438 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Fort St. John 286 km · Grande Prairie 290 km · Jasper 330 km · Terrace 386 km · Brocklehurst 391 km · Kamloops 397 km · Whistler 423 km · Salmon Arm 429 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 Prince George (53.9166°, -122.753°, elevation 578 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).