Niagara-on-the-Lake Weather in August
Average highs run from 27°C on August 1 to 25°C on August 31, and lows from 20°C to 18°C.
August day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 25°C
- Average low
- 19°C
- Record high
- 35°CAug 8, 2001
- Record low
- 11°CAug 21, 2007
- Daylight
- 14 h 31 min to 13 h 14 min
- Cloud cover
- 67%
- Humidity
- 77%
- Dew point
- 16°C
- Wind
- 16.2 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 27°C | 20°C | 34°C 2002 | 16°C 2009 | 51% |
| Aug 2 | 27°C | 20°C | 34°C 2007 | 16°C 2003 | 51% |
| Aug 3 | 26°C | 20°C | 33°C 2005 | 16°C 2020 | 50% |
| Aug 4 | 26°C | 19°C | 33°C 2005 | 16°C 1993 | 50% |
| Aug 5 | 26°C | 19°C | 33°C 2018 | 14°C 1993 | 50% |
| Aug 6 | 25°C | 19°C | 33°C 2001 | 15°C 2017 | 49% |
| Aug 7 | 26°C | 19°C | 34°C 2001 | 16°C 1997 | 49% |
| Aug 8 | 26°C | 19°C | 35°C 2001 | 15°C 2015 | 48% |
| Aug 9 | 27°C | 19°C | 34°C 2001 | 11°C 2015 | 48% |
| Aug 10 | 26°C | 19°C | 33°C 2025 | 14°C 2008 | 48% |
| Aug 11 | 26°C | 19°C | 33°C 2025 | 16°C 2019 | 47% |
| Aug 12 | 26°C | 19°C | 34°C 2025 | 15°C 2004 | 45% |
| Aug 13 | 26°C | 19°C | 33°C 2002 | 15°C 2015 | 45% |
| Aug 14 | 25°C | 19°C | 32°C 2002 | 15°C 2013 | 46% |
| Aug 15 | 26°C | 19°C | 32°C 1995 | 15°C 2014 | 46% |
| Aug 16 | 26°C | 19°C | 30°C 2009 | 14°C 2019 | 45% |
| Aug 17 | 26°C | 19°C | 31°C 1998 | 16°C 2000 | 44% |
| Aug 18 | 25°C | 19°C | 30°C 2011 | 15°C 2007 | 43% |
| Aug 19 | 25°C | 18°C | 31°C 2015 | 15°C 2008 | 42% |
| Aug 20 | 25°C | 18°C | 30°C 2009 | 14°C 2008 | 42% |
| Aug 21 | 26°C | 18°C | 31°C 2003 | 11°C 2007 | 42% |
| Aug 22 | 24°C | 18°C | 30°C 2020 | 14°C 2004 | 41% |
| Aug 23 | 25°C | 18°C | 33°C 2021 | 15°C 2015 | 40% |
| Aug 24 | 25°C | 18°C | 32°C 2021 | 13°C 1997 | 39% |
| Aug 25 | 25°C | 18°C | 30°C 2021 | 14°C 2001 | 38% |
| Aug 26 | 25°C | 18°C | 31°C 2021 | 14°C 2017 | 38% |
| Aug 27 | 25°C | 18°C | 31°C 1993 | 15°C 2017 | 39% |
| Aug 28 | 25°C | 18°C | 31°C 2018 | 14°C 2023 | 38% |
| Aug 29 | 25°C | 18°C | 32°C 2007 | 14°C 2025 | 37% |
| Aug 30 | 25°C | 18°C | 32°C 2010 | 13°C 2025 | 36% |
| Aug 31 | 25°C | 18°C | 32°C 2010 | 13°C 2009 | 38% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- August 1
- sunrise 6:07 AM, sunset 8:38 PM
- August 31
- sunrise 6:39 AM, sunset 7:53 PM
Other months
Sources
Records: NOAA GHCN-Daily, station CA006136699, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.