Niagara-on-the-Lake weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: June – September
What is the weather like in Niagara-on-the-Lake in August?
In August, Niagara-on-the-Lake is warm: daytime highs average 25 °C, and even at night it stays warm at around 20 °C. The sun shines for around 8 hours a day. Rain is frequent, with about 10 rainy days and 76 mm in total. All in all, August is an excellent month for a holiday in Niagara-on-the-Lake.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 85 | 82 | 79 |
| Day | 25° | 25° | 21° |
| Night | 20° | 20° | 17° |
| Sun | 9 h | 8 h | 6 h |
| Rain days | 11 | 10 | 10 |
More details for August
- Daylight
- 14 h 1 min06:21 – 20:22
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 13 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 48 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−4America/Toronto
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %78 %
- Few rainy daysweight 30 %54 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Niagara-on-the-Lake in August: quick answers
Is Niagara-on-the-Lake hot in August?
Warm rather than hot: in August, daytime highs in Niagara-on-the-Lake average 25 °C and nights cool to about 20 °C.
Does it rain much in Niagara-on-the-Lake in August?
Rain is frequent, with about 10 rainy days and 76 mm in total.
Niagara-on-the-Lake month by month
The whole year in Niagara-on-the-LakeAll destinations: CanadaWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences