Edmonton weather in August

August in Edmonton: warm, a little rain — one of the best months to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Edmonton🇨🇦 Canada · Rockies · City94
  1. 34Jan
  2. 39Feb
  3. 52Mar
  4. 72Apr
  5. 81May
  6. 87Jun
  7. 90Jul
  8. 94Aug
  9. 84Sep
  10. 67Oct
  11. 45Nov
  12. 31Dec

#1 of 12 months in Edmonton · #35 of 1413 destinations to visit in August · comfort 94/100 (tier S)

Days
24°C
Nights
13°C
Wet days
7
Sun
11.2 h
Humidity
70%
Daylight
15 h
Edmonton, Canada
Photo: Jonathan Cooper · Pexels

Traveller notes on Edmonton in August

Alberta's forum rates August as comfortable and dry — warm enough for sunshine, low humidity, without the heat feeling oppressive. Regulars mention the long daylight hours as a real bonus this time of year, with sunset not until around 10pm and correspondingly early sunrises.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Other months in Edmonton

Regulars describe this month as genuinely variable, typically ranging from above 5C up toward the low 20s, with the honest caveat that Alberta is known for freak snowstorms this late in spring, occasionally even into June. Our row backs that mild, still-unsettled read, 19.7C over 7.3C nights feeling 4C, with 49.8mm of rain across 6.5 days and a trace of that late snow, 1.4cm. The standard advice from regulars is to check the long-range forecast just before arriving and pack for almost anything rather than trust an average. Daylight is generous by this point, a real upside for anyone planning full days outdoors despite the unpredictable temperatures. The record: humidity 60 percent, 11.9 hours of sun, a 19.3 kph wind and AQI 54.
FreakSnowstormsStillPossibleThisLate · May · 1 month ago · Read more on Tripadvisor ↗
Regulars call this a genuinely good month, usually drier than June through August and still holding plenty of sunshine and daylight, though a chance of an early snow flurry does exist and is worth checking the forecast for before packing footwear. Our row backs the drier, cooling read, 19.7C over 7.6C nights feeling 5C, with a modest 28.9mm of rain across 4.8 days and a real early trace of snow, 2.6cm. The shift from summer is real but not abrupt - regulars describe layering as the main adjustment rather than a full change of wardrobe. The record: humidity 68 percent, 9.2 hours of sun, an 18 kph wind and AQI 49.
DrierThanSummerWithLotsOfDaylightStill · September · 1 month ago · Read more on Tripadvisor ↗
Two things define June here and regulars name both. The light: our row carries 17 hours of daylight with 12.3 of sun, which is why the festival season runs all summer and evenings stay usable. And the insects: they call June mosquito month outright. Temperatures are milder than the daylight suggests at 22.5C by day and 11.4C at night, so the advice is layers - a top, a sweater and a light jacket - because the mornings and the nights are genuinely cool. Rain comes to 85.9mm across 9.7 days. The record: humidity 66 percent, a 19.2 kph wind and AQI 52.
SeventeenHoursAndTheMosquitoes · June · 1 month ago · Read more on Tripadvisor ↗
July is the month locals name for Edmonton - the best of the year for warmth and daylight - and the phrase they use is warm days with virtually no humidity. Our row looks like it disagrees at 72 percent relative humidity, but the dew point behind it is 11.3C, and that is the dry air they mean: the percentage runs high only because the nights drop to 13.9C under a 25.2C day. Daylight is the other headline, 16.4 hours of it. Festivals run right through the summer here - Taste of Edmonton, the Heritage Festival, the Fringe - without any matching spike in visitor numbers, so the season is busy without being crowded. The record: 73mm across 9.2 precipitation days, 12.6 hours of sun and AQI 73.
DryAirNotDryNumbers · July · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Edmonton's card on the map.

Edmonton climate normals — August

Daytime high24°C / 76°F🌤 warm
Nighttime low13°C / 55°F
Feels like (high)24°C / 75°F
Rainfall55 mm / 2.2 in🌦 some rain
Rainy days7 days
Humidity70%💧 humid
Dew point11°C / 51°F
Sunshine11.2 h/day
Daylight14.7 h
Wind17 km/h / 11 mph
Air quality (US AQI)54🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Edmonton in August

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsK-Days, Heritage Festival, Summer break in Canada(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Edmonton's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherEdmonton's weather peaks June–August.

August includes K-Days.

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Best weatherFair weatherToughest weather

What's on in Edmonton in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Festival

    K-Days

    15 Jul – 2 Aug · usuallyMajor festivalCrowded

    Ten days of exhibition, midway and nightly fireworks starting the third Friday of July. It is the city's big summer fair and the one time the Northlands grounds are the centre of everything. Source ↗

  • Festival

    Heritage Festival

    1–3 AugMajor festivalCrowded

    The August long weekend in Hawrelak Park, with pavilions for a hundred-odd cultures and food paid for in tickets rather than cash. Go early; the queues for the popular pavilions get long by noon. Source ↗

  • Festival

    Edmonton Folk Music Festival

    6–9 AugBook early

    Four days on the ski hill at Gallagher Park in the river valley, with the city skyline behind the main stage and candles lit across the slope after dark. Weekend passes go in a lottery months ahead. Source ↗

  • Festival

    Cariwest

    8–10 Aug · usuallyMajor festivalCrowded

    Edmonton's Caribbean arts festival: a costume parade, live soca and calypso, and a Caribbean Village, grown out of Klondike Days into its own independent event. Source ↗

  • Festival

    Edmonton Fringe Festival

    13–23 AugArts festivalCrowded

    The oldest and largest fringe theatre festival in North America, eleven days taking over Old Strathcona with hundreds of shows and a street of buskers. Tickets are cheap and the queues are the social part. Source ↗

What's on around the world in August →

Nearby, and something's on

Within 300 km of Edmonton — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Edmonton?

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Edmonton in August — FAQ

Is August a good time to visit Edmonton?
August in Edmonton: warm, a little rain — one of the best months to visit. It ranks #1 of 12 months for Edmonton on SeasonMap's comfort score (94/100).
What is the weather like in Edmonton in August?
In August, Edmonton averages a daily high of 24.4°C and a low of 12.6°C, with about 55.1 mm of rain over roughly 7.4 rainy days.
What is the air quality in Edmonton in August?
Edmonton has a mean US Air Quality Index of about 54 in August.

Within 300 km: Calgary's GlobalFest fireworks on 27–30 Aug, and Lake Louise's High trails clear around 1 Jul – 30 Sep.