What to Wear in Ottawa in August
Your complete weather-based packing list derived from 30 years of historical climate data.
August Weather in Ottawa at a Glance
Avg High
25°C
Avg Low
16°C
Rain Risk
25%
💡 Quick Tip:
Summer essentials: shorts, tank tops, linen fabrics, sandals. Sun hat is a must. Rain is unlikely, but a small umbrella never hurts.
Weekly Packing Breakdown for Ottawa
Summer essentials: shorts, tank tops, linen fabrics, sandals.
Summer essentials: shorts, tank tops, linen fabrics, sandals.
Summer essentials: shorts, tank tops, linen fabrics, sandals.
Light breathable clothing, t-shirts, light pants or shorts.
Essential Packing List for Ottawa in August
Don't leave home without these essentials.
Top Layers
- ✓T-Shirts / Tank Tops
- ✓Light Cardigan / Hoodie
- ✓No coat needed
Bottoms & Shoes
- ✓Jeans / Heavy Trousers
- ✓Comfortable Walking Shoes
- ✓Socks (Cotton/Athletic)
Accessories
- ✓Sunglasses & Hat
- ✓Compact Umbrella
Common Questions about Ottawa Weather in August
What is the weather like in Ottawa in August?
It is mild and pleasant with average highs of 25°C. Nights average around 16°C.
Do I need a heavy coat?
No, a light jacket or sweater is sufficient for cooler moments.
Does it rain often in Ottawa in August?
Rain is relatively rare (25% chance), but a small umbrella is always good to have.
What shoes should I take to Ottawa?
Comfortable walking shoes are the most important item. Sneakers or loafers are perfect.
Can I wear shorts / short sleeves?
Yes, daytimes are warm enough for shorts and short sleeves.