Weather atlas / The seasons

Climate in Ottawa

Ottawa experiences four distinct seasons with cold, snowy winters and warm, humid summers. Temperatures typically range from below -20 degrees Celsius in January to around 25 degrees Celsius in July. Be prepared for significant temperature fluctuations and frequent snowfall during the winter months.

Temperature in °C · Rainfall in mm · Monthly climate averages

Temperature

Precipitation

Monthly Averages

Monthly detail · Scroll the table to see all measurements →

MonthHigh °CAvg °CLow °CRainDaysSun (h)Comfort
May18°14°11°0mm0
73

All-time Records

Record High18.2°CMay
Record Low10.4°CMay
Driest Month0mmMay
Sunniest MonthhMay

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