Dawson City weather in September

In September, Dawson City sees average daytime highs of 11°C and overnight lows near 1°C, with 37 mm of precipitation across 8.8 wet days and about 12.7 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 7°C by the end. The sky is clear or mostly clear about 17% of the time in September, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of September to 11 h 06 min by month's end. Set against the rest of the year, September is Dawson City's 8th-clearest and 3rd-windiest month. For the whole year in context, see Dawson City's year-round climate.

Daytime high
11°
5th warmest
Overnight low
8th coldest
Precipitation
37 mm
8.8 wet days
Daylight
12 h 36 min
6:53 AM – 7:31 PM
Cloud cover
71%
8th clearest
Wind
6 km/h
3rd windiest
Solar energy
2.55 kWh/m²
Travel score
2.6
out of 10

Dawson City is town in Yukon Territory, Canada.

Density
42/km²
people per km²
Founded
1896

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 14°C in the first days to 7°C by the end.

A typical September day in Dawson City reaches about 11°C in the afternoon and slips back to 1°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 15°C. Set against its neighbours, September runs about 7°C cooler than August and about 12°C warmer than October.

-10°10°20°151015202530
Avg high (°C)Avg low (°C)
1144
2144
3144
4144
5143
6133
7133
8133
9133
10133
11122
12122
13122
14122
15112
16111
17111
18101
19101
20101
2190
2290
2390
2480
258-1
267-1
277-1
287-2
296-2
306-2

How September really feels in Dawson City

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 17 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
17
wind chill below the day's low

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

Dawson City weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-22° / -28°103.34.250.0
Feb-16° / -23°623.17.90.0
Mar-6° / -18°82.73.411.20.0
Apr / -6°164.83.714.60.6
May14° / 399.61.317.94.0
Jun19° / 6313.5020.15.5
Jul20° / 10°7214.2019.25.6
Aug17° / 5310.9016.15.2
Sep11° / 378.81.112.72.6
Oct-1° / -8°266.96.19.30.0
Nov-15° / -21°165.16.560.0
Dec-19° / -25°144.35.43.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
23268
33367
43367
53466
63565
73565
83565
93565
103565
113565
123466
133367
143367
153268
163268
173268
183070
193070
203070
213070
223070
233070
243070
253070
263070
273070
283070
293070
303070

Chance of precipitation in September

Any precipitationSnow

Dawson City gets around 37 mm of rain and snow over 8.8 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 30% and peaks near 34% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%151015202530
Rain chance (%)Snow chance (%)
1340
2340
3330
4330
5330
6321
7311
8311
9301
10301
11301
12292
13292
14292
15293
16293
17293
18294
19294
20295
21286
22286
23287
24287
25288
26288
27289
282810
292811
302811

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 (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 14 h 18 min at the start of September to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 192 minutes over September. Sunrise moves from 6:09 AM to 7:34 AM, and sunset from 8:26 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.36:098:26
214.26:128:23
314.16:158:19
414.06:188:15
513.96:208:12
613.76:238:08
713.66:268:04
813.56:298:01
913.46:327:57
1013.36:357:53
1113.26:387:50
1213.16:417:46
1313.06:447:42
1412.96:477:39
1512.76:507:35
1612.66:537:31
1712.56:567:27
1812.46:597:24
1912.37:027:20
2012.27:057:16
2112.17:087:13
2212.07:117:09
2311.97:147:05
2411.87:177:02
2511.67:206:58
2611.57:236:54
2711.47:256:51
2811.37:286:47
2911.27:316:43
3011.17:346:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.55 kWh/m².

For context, solar energy here swings from a low near 0.07 kWh/m² to a high of 6.23 kWh/m² in June across the year — September's 2.55 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.3Moderate
23.2Moderate
33.2Moderate
43.1Moderate
53.1Moderate
63.0Moderate
73.0Moderate
83.0Moderate
92.9Moderate
102.9Moderate
112.8Moderate
122.8Moderate
132.7Moderate
142.6Moderate
152.6Moderate
162.5Moderate
172.5Moderate
182.4Moderate
192.4Moderate
202.3Moderate
212.3Moderate
222.2Moderate
232.1Moderate
242.1Moderate
252.0Moderate
262.0Dim
271.9Dim
281.9Dim
291.8Dim
301.8Dim
Planning a trip in September

Is September a good time to visit Dawson City?

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

2.6
Sightseeing
5th-best month of the year
0.0
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Dawson City.

What to pack for Dawson City in September

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

In September, Dawson City sees daytime highs around 11°C and nights near 1°C. Pack a warm layer. Worth having: rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Dawson City in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dawson City peaks around June 22 at about 5 (high) — a little sun protection helps at midday. 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 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateModerateLowJun 22UV 5Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May3Moderate
Jun5High
Jul5Moderate
Aug3Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low

Air quality in Dawson City 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 Dawson City is worst in July — around 38 µg/m³ PM2.5 (poor), about 127.7× the cleanest month (January, 0 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodJul 1938 µg/m³Jan 10 µg/m³
PM2.5 (µg/m³)Level
Jan0Good
Feb1Good
Mar3Good
Apr6Good
May16Moderate
Jun30Moderate
Jul38Poor
Aug34Moderate
Sep9Good
Oct1Good
Nov0Good
Dec0Good
Location & terrain

Where is Dawson City?

Dawson City sits at 64.1°N, 139.4°W, 0 m above sea level, in Canada. The nearest listed city is Badger, 397 km away.

WhitehorseJuneauTerraceYellowknife

Topography around Dawson City

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

Within 3 km, the terrain around Dawson City has significant variations in elevation — a maximum elevation change of 562 m around an average of 464 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 892 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,992 m.

The land around Dawson City is covered by trees (77%) within 3 km, trees (93%) within 16 km, and trees (69%) and grassland (20%) within 80 km.

3 km
562 m
16 km
892 m
80 km
1,992 m
treesshrubsgrasslandartificial surfacesbare terrainwatermoss and lichen
September weather nearby: Badger 397 km · Fairbanks 406 km · Whitehorse 435 km · Eagle River 599 km · Anchorage 620 km · Juneau 694 km · Terrace 1,223 km · Yellowknife 1,258 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 Dawson City (64.0601°, -139.4333°, elevation 0 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).