Whitehorse weather in August

In August, Whitehorse sees average daytime highs of 17°C and overnight lows near 7°C, with 53 mm of precipitation across 11.1 wet days and about 15.5 hours of daylight. It is the 3rd-warmest and 1st-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 12% of the time in August, and the air most often feels dry.

Daylight stretches from about 16 h 48 min at the start of August to 14 h 06 min by month's end. Set against the rest of the year, August is Whitehorse's 6th-clearest and 5th-windiest month. For the whole year in context, see Whitehorse's year-round climate.

Daytime high
17°
3rd warmest
Overnight low
11th coldest
Precipitation
53 mm
11.1 wet days
Daylight
15 h 30 min
5:20 AM – 8:49 PM
Cloud cover
74%
6th clearest
Wind
8 km/h
5th windiest
Solar energy
4.13 kWh/m²
Travel score
4.9
out of 10

Whitehorse is capital city of the territory of Yukon, Canada.

Air quality
Excellent
PM2.5 3 µg/m³ · 2018
Density
68/km²
people per km²
Founded
1898

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

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 August day in Whitehorse reaches about 17°C in the afternoon and slips back to 7°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 22°C. Set against its neighbours, August runs about 2°C cooler than July and about 6°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1198
2198
3198
4198
5198
6198
7188
8188
9188
10188
11188
12187
13187
14177
15177
16177
17177
18167
19167
20166
21166
22156
23156
24156
25156
26145
27145
28145
29145
30145
31145

How August really feels in Whitehorse

Once humidity and wind are folded in, August 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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Whitehorse weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-14° / -20°257.38.76.20.0
Feb-9° / -18°1656.78.50.0
Mar-3° / -14°154.76.511.30.0
Apr / -5°144.1414.20.6
May12° / 256.91.816.93.5
Jun17° / 4410.30.218.65.3
Jul19° / 5311.1017.95.7
Aug17° / 5311.10.215.54.9
Sep11° / 4911.22.412.62.3
Oct / -4°4110.49.39.70.1
Nov-8° / -13°277.89.770.0
Dec-12° / -18°287.39.55.40.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33169
43169
53169
63070
73169
83169
93169
103070
112971
122971
132971
142674
152674
162575
172575
182476
192278
202278
212278
222179
232179
242080
252080
261981
272080
282080
292080
302179
312278

Chance of precipitation in August

Any precipitationSnow

Whitehorse gets around 53 mm of rain and snow over 11.1 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 36% and peaks near 43% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1290
2280
3280
4280
5280
6290
7290
8300
9300
10310
11320
12330
13340
14350
15360
16370
17380
18390
19400
20400
21411
22421
23421
24431
25431
26431
27431
28431
29432
30432
31432

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August 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%151015202531
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
31100

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 48 min at the start of August to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 162 minutes over August. Sunrise moves from 4:42 AM to 5:58 AM, and sunset from 9:30 PM to 8:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.84:429:30
216.74:459:28
316.64:479:25
416.54:509:22
516.54:529:20
616.44:559:17
716.34:579:14
816.25:009:12
916.15:029:09
1016.05:059:06
1115.95:079:03
1215.85:109:00
1315.85:128:57
1415.75:158:55
1515.65:178:52
1615.55:208:49
1715.45:228:46
1815.35:258:43
1915.25:288:40
2015.15:308:37
2115.05:338:34
2214.95:358:31
2314.85:388:28
2414.75:408:25
2514.65:438:21
2614.65:458:18
2714.55:488:15
2814.45:508:12
2914.35:538:09
3014.25:558:06
3114.15:588:03

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.13 kWh/m².

For context, solar energy here swings from a low near 0.21 kWh/m² to a high of 6.06 kWh/m² in June across the year — August's 4.13 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.5Bright
114.5Bright
124.4Bright
134.3Bright
144.3Bright
154.2Bright
164.1Bright
174.0Bright
184.0Moderate
193.9Moderate
203.8Moderate
213.8Moderate
223.7Moderate
233.6Moderate
243.6Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.3Moderate
303.3Moderate
313.3Moderate
Planning a trip in August

Is August a good time to visit Whitehorse?

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

4.9
Sightseeing
3rd-best month of the year
1.1
Beach & pool
3rd-best month of the year

August is a reasonable time to visit Whitehorse for sightseeing.

What to pack for Whitehorse in August

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

In August, Whitehorse sees daytime highs around 17°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Whitehorse in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Whitehorse peaks around July 15 at about 6 (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 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 15UV 6Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5Moderate
Jul6High
Aug4Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Whitehorse?

Whitehorse sits at 60.7°N, 135.1°W, 707 m above sea level, in Canada. The nearest listed city is Juneau, 271 km away.

JuneauDawson CityTerraceFort St. John

Topography around Whitehorse

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

Within 3 km, the terrain around Whitehorse has only modest variations in elevation — a maximum elevation change of 181 m around an average of 688 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,175 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,734 m.

The land around Whitehorse is covered by trees (62%) within 3 km, trees (80%) within 16 km, and trees (65%) within 80 km.

3 km
181 m
16 km
1,175 m
80 km
1,734 m
treesgrasslandartificial surfacesbare terrainwatermoss and lichen
August weather nearby: Juneau 271 km · Dawson City 435 km · Badger 779 km · Eagle River 783 km · Fairbanks 788 km · Terrace 788 km · Anchorage 801 km · Fort St. John 960 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 Whitehorse (60.7161°, -135.0538°, elevation 707 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).