August · Canada
Best time to visit Niagara-on-the-Lake in August Weather, crowds & prices
Weather in Niagara-on-the-Lake in August
Average temperature 22°C, 57 mm of rain, about 21 days with 6+ hours of sunshine and 71% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
9.0/10
Ranked #3 of 12 months
- Avg temp
- 22°C
- Rainfall
- 57 mm
- Humidity
- 71%
- Days with 6h+ sun
- 21
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Niagara-on-the-Lake scores 9.0/10 for sightseeing and cultural travel - one of the top 12-month picks (#3). Expect around 22°C, 57 mm of rain, and roughly 21 days with 6+ hours of sunshine this month.
Niagara-on-the-Lake's colonial main street and vineyards sit where the Niagara river meets Lake Ontario.
August in Niagara-on-the-Lake — one of the year's strongest windows (3rd)
At 22°C (72°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 57 mm of rain this month — a flexible day or two helps — with about 21 days with 6+ hours of sunshine and 13.8 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Niagara-on-the-Lake at 9/10 (3rd of 12), just behind May at 9.1/10.
Pack light clothing, a hat and real sun protection, a packable rain layer.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Niagara-on-the-Lake in August?
- In August, Niagara-on-the-Lake averages 22°C, 57 mm of rain, and about 21 days with 6+ hours of sunshine. Its climate-comfort score is 9.0/10.
- Is August a good time to visit Niagara-on-the-Lake?
- August earns a 9.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Niagara-on-the-Lake in August?
- Expect about 57 mm of rain in August. Average humidity is 71% and there are about 21 days with 6+ hours of sunshine.
Curated in Niagara-on-the-Lake
Tickets & experiences
Things to do in Niagara-on-the-Lake
Niagara-on-the-Lake, Canada. Live activities and tours from GetYourGuide, matched to this destination.