SeasonScore
Ottawa, Canada
Photo: G. Baranski · CC BY-SA 3.0

Canada

Ottawa in August

☀️ Summer

Pleasant and some showers.

🎒 Pack: sunglasses & hat

Best months: May (9.3), Jul (9.3), Sep (9.3)

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Why August scores 9.2What goes into the score

How it works
🌡️ 26° / 14°C🌧️ 79 mm💧 dew pt 15°🍃 PM2.5 13
  • Weather comfort9.3
    • ✓Comfortable temperatures (26°C highs / 14°C lows)
    • ✓Slightly humid (dew point 15°C)
    • ✓Mostly dry (~79 mm rain)
  • Air quality8.7
    • ✓Good (within WHO guideline) (PM2.5 ~13 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline8.5
    • ·Normal precautions
Compare monthsPut August side by side with another month
AugMay
Score9.2 Excellent9.3 Excellent
Season☀️ Summer🌷 Spring
High / low26° / 14°20° / 8°
Rain79 mm75 mm
Humiditydew pt 15°dew pt 8°
PM2.513 µg/m³6 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Ottawa International Airport weather-station normals. Rainfall: Ottawa International Airport weather-station normals (national met service).

Holidays & crowdsAugust 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in Canada this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore OttawaEvents, sights, food & souvenirs

Check event dates locally

Ottawa is Canada's capital, on the Ottawa River across from Gatineau, Quebec. Visitors come for Parliament Hill, national museums, the Rideau Canal and winter festivals.

Events in August

No major events on our calendar for August.

Coming up later

WinterludeDate variesDates vary; usually the first three weekends of February

A winter festival with ice sculptures, snow play areas and skating.

Why go: Dress for very cold weather and book accommodation early.

Where: Rideau Canal, downtown Ottawa and Gatineau

Canadian Tulip FestivalDate variesDates vary; usually May

Displays of tulips celebrating a gift from the Netherlands after the Second World War.

Why go: One of the prettiest times to visit.

Where: Commissioners Park and around the city

Canada DayEvery year1 July every year

National day celebrations with concerts and fireworks.

Why go: Very crowded; book accommodation well ahead.

Where: Downtown and around Parliament Hill