The weather in St. John’s, Newfoundland is never extremely warm.  Although travel throughout the year is possible, the summer months offer the most habitable climate, with warmer temperatures and less precipitation than during other seasons.

            On average, the warmest months of the year are July and August, during which time the daily high temperatures will reach 18°C-24°C ( upper 60’s and lower 70’s in Fahrenheit).  The nighttime temperatures during these months will drop to 10°C-13°C (lower 50’s).  On average, the coldest months of the year are January and February, during which time the daily high temperatures will go just above O°C (upper 30’s).  The nighttime temperatures during these months will drop to -10°C to -5°C (mid to upper teens).  Needless to say, warm clothes are required throughout the year.

            Although St. John’s receives a fair share of rain throughout the year, the months of May, June and July receive the least precipitation.  However, even during these months the city will receive 7 to 10 cm (3 three to four inches) of rainfall.  The most precipitation in St. Johns is received from October through January. 

            Based on temperatures and precipitation, the best time to visit St. John’s is during the months of June and July.

            For the official forecast, and up-to-date weather warnings, check out Environment Canada's  St. John’s Forecast (click  here or on the big blue "Imperial Units" button for the same information with measurements in Fahrenheit and inches).  For a brief summary of the weather for each month, in both metric and imperial units, check out the Temperature and Precipitation Averages Page. For extremely detailed climate information, month-by-month, see Environment Canada's St. John's climate page.