Toronto climate

Toronto Weather in August

NASA POWER reanalysis for the half-degree grid cell around Toronto, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 24°C on August 1 to 23°C on August 31, and lows from 18°C to 17°C. Normal precipitation for the month is 59 mm over about 12 wet days.

August day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Toronto, in °C, with the record for each date.5101520253035151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

August at a glance

Average high
24°C
Average low
18°C
Precipitation
59 mm
Reanalysis high
32°CAug 1, 2006
Reanalysis low
9°CAug 20, 1992
Daylight
14 h 34 min to 13 h 15 min
Cloud cover
62%
Humidity
73%
Dew point
15°C
Wind
14.8 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Aug 124°C18°C32°C 200610°C 199248%
Aug 224°C18°C31°C 200613°C 199248%
Aug 324°C18°C31°C 200513°C 199348%
Aug 424°C18°C30°C 201211°C 199247%
Aug 524°C18°C30°C 201810°C 199247%
Aug 624°C18°C29°C 200711°C 199446%
Aug 724°C18°C29°C 200111°C 199346%
Aug 824°C18°C29°C 200113°C 200246%
Aug 924°C18°C29°C 201612°C 199946%
Aug 1024°C18°C32°C 201611°C 199445%
Aug 1124°C18°C30°C 201611°C 199644%
Aug 1224°C18°C31°C 201610°C 199243%
Aug 1324°C18°C29°C 201611°C 199243%
Aug 1424°C18°C29°C 201810°C 199244%
Aug 1524°C18°C29°C 201810°C 199444%
Aug 1624°C18°C28°C 201112°C 199443%
Aug 1724°C17°C29°C 200911°C 199242%
Aug 1824°C17°C29°C 201611°C 199241%
Aug 1924°C17°C28°C 201610°C 199240%
Aug 2024°C17°C28°C 19959°C 199240%
Aug 2124°C17°C29°C 201910°C 199240%
Aug 2224°C17°C29°C 202012°C 199239%
Aug 2323°C17°C29°C 202012°C 199437%
Aug 2423°C17°C29°C 202012°C 199436%
Aug 2523°C17°C28°C 201211°C 199536%
Aug 2623°C17°C28°C 201613°C 199536%
Aug 2723°C17°C27°C 202012°C 199637%
Aug 2823°C17°C29°C 201810°C 199236%
Aug 2923°C17°C28°C 20079°C 199235%
Aug 3023°C17°C30°C 20109°C 199435%
Aug 3123°C17°C29°C 201011°C 199236%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Toronto, in percent.010203040501102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:07 AM, sunset 8:41 PM
August 31
sunrise 6:40 AM, sunset 7:55 PM

Every day of August: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.