Yellowknife weather in July

In July, Yellowknife sees average daytime highs of 21°C and overnight lows near 13°C, with 37 mm of rain across 7.3 wet days and about 18.5 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 26% of the time in July, and the air most often feels dry.

Daylight stretches from about 19 h 24 min at the start of July to 17 h 18 min by month's end. Set against the rest of the year, July is Yellowknife's 3rd-clearest and 10th-windiest month. For the whole year in context, see Yellowknife's year-round climate.

Daytime high
21°
1st warmest
Overnight low
13°
12th coldest
Rainfall
37 mm
7.3 wet days
Daylight
18 h 36 min
3:26 AM – 10:00 PM
Cloud cover
61%
3rd clearest
Wind
12 km/h
10th windiest
Solar energy
5.7 kWh/m²
Travel score
6.8
out of 10

Yellowknife is capital and largest city of the Northwest Territories, Canada.

Air quality
Excellent
PM2.5 4 µg/m³ · 2019
Density
149/km²
people per km²
Founded
1970

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical July day in Yellowknife reaches about 21°C in the afternoon and slips back to 13°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°C. Set against its neighbours, July runs about 3°C warmer than June and about 3°C warmer than August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12011
22012
32012
42012
52012
62012
72012
82012
92012
102012
112112
122113
132113
142113
152113
162113
172113
182113
192113
202113
212113
222113
232113
242113
252113
262113
272113
282113
292113
302113
312113

How July really feels in Yellowknife

Once humidity and wind are folded in, July 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

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

Yellowknife weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-22° / -28°103.44.45.60.0
Feb-19° / -26°62.12.88.20.0
Mar-12° / -21°103.24.211.30.0
Apr-1° / -11°113.12.514.40.0
May10° / 194.61.417.42.5
Jun18° / 255.3019.36.2
Jul21° / 13°377.3018.56.8
Aug18° / 11°469.2015.85.7
Sep11° / 408.20.512.62.5
Oct / -3°246.44.39.50.0
Nov-10° / -16°154.666.50.0
Dec-18° / -24°103.44.54.70.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 19% of July, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34357
44357
54357
64258
74258
84258
94159
104159
114159
124258
134159
144258
154357
164456
174456
184555
194555
204753
214753
224852
235050
245050
255050
265050
275248
285248
295149
305149
315050

Chance of precipitation in July

Any precipitation

Yellowknife gets around 37 mm of rain over 7.3 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 23% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
222
322
423
523
623
724
824
924
1024
1124
1224
1323
1423
1523
1623
1723
1823
1922
2022
2122
2222
2322
2422
2522
2622
2722
2823
2923
3024
3124

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29730
39730
49730
59640
69550
79550
89460
99370
109370
119280
129190
139190
1490100
1589110
1689110
1788120
1886131
1986131
2085141
2185141
2284151
2384151
2484151
2583161
2683161
2783161
2883161
2983161
3083161
3183161

Wind in July

Winds average 12 km/h in July.

Across July, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 19 h 24 min at the start of July to 17 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 126 minutes over July. Sunrise moves from 3:00 AM to 4:04 AM, and sunset from 10:22 PM to 9:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
119.43:0010:22
219.33:0110:21
319.33:0210:20
419.33:0410:19
519.23:0510:18
619.23:0710:17
719.13:0810:15
819.13:1010:14
919.03:1210:13
1019.03:1410:11
1118.93:1610:09
1218.83:1810:08
1318.83:2010:06
1418.73:2210:04
1518.63:2410:02
1618.63:2610:00
1718.53:299:58
1818.43:319:56
1918.33:339:53
2018.33:369:51
2118.23:389:49
2218.13:419:47
2318.03:439:44
2417.93:469:42
2517.83:489:39
2617.83:519:36
2717.73:539:34
2817.63:569:31
2917.53:599:28
3017.44:029:26
3117.34:049:23

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.7 kWh/m².

For context, solar energy here swings from a low near 0.13 kWh/m² to a high of 6.39 kWh/m² in June across the year — July's 5.7 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Bright
56.0Bright
65.9Bright
75.9Bright
85.9Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.6Bright
235.6Bright
245.6Bright
255.5Bright
265.5Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
315.2Bright
Planning a trip in July

Is July a good time to visit Yellowknife?

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

6.8
Sightseeing
1st-best month of the year
3.9
Beach & pool
1st-best month of the year

July is a reasonable time to visit Yellowknife for sightseeing.

What to pack for Yellowknife in July

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

In July, Yellowknife sees daytime highs around 21°C and nights near 13°C. Worth packing: sun protection. About 7 days see rain.

sun protection

UV index in Yellowknife in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Yellowknife peaks around June 15 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJun 15UV 4Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar1Low
Apr3Moderate
May4Moderate
Jun4Moderate
Jul4Moderate
Aug3Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low

Air quality in Yellowknife in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Yellowknife is worst in August — around 22 µg/m³ PM2.5 (moderate), about 224.0× the cleanest month (January, 0 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Yellowknife's WHO annual average of 4 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1421 µg/m³Jan 10 µg/m³
PM2.5 (µg/m³)Level
Jan0Good
Feb0Good
Mar1Good
Apr2Good
May2Good
Jun4Good
Jul13Moderate
Aug22Moderate
Sep3Good
Oct0Good
Nov0Good
Dec0Good
Location & terrain

Where is Yellowknife?

Yellowknife sits at 62.5°N, 114.4°W, 252 m above sea level, in Canada. The nearest listed city is Fort McMurray, 659 km away.

Fort McMurrayFort St. JohnGrande PrairieSt. AlbertEdmontonWîhkwêntôwinStony PlainSpruce Grove

Topography around Yellowknife

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

Within 3 km, the terrain around Yellowknife has only modest variations in elevation — a maximum elevation change of 56 m around an average of 180 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 97 m; within 80 km, only modest variations in elevation — a maximum elevation change of 220 m.

The land around Yellowknife is covered by trees (43%) and water (31%) within 3 km, trees (60%) and water (29%) within 16 km, and trees (50%) and water (40%) within 80 km.

3 km
56 m
16 km
97 m
80 km
220 m
treesshrubsgrasslandartificial surfacesbare terrainwatermoss and lichen
July weather nearby: Fort McMurray 659 km · Fort St. John 781 km · Grande Prairie 849 km · St. Albert 982 km · Edmonton 991 km · Wîhkwêntôwin 992 km · Stony Plain 992 km · Spruce Grove 992 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 Yellowknife (62.4541°, -114.3725°, elevation 252 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).