St John Weather in September

   
 
 

Check the Weather in St John, New Brunswick in September before you book your next holiday. This gives the best indication of the weather in September and includes figures for temperature, sunshine and rainfall.

Max Daytime Temperature (°C) 18°C (64°F) Max Daytime Temperature in September in St John 18°C (64°F) in September
Min Night-time Temperature (°C) 10°C (50°F) Min Night-time Temperature in September in St John 10°C (50°F) in September
Hours of Sunshine (Daily) 6 Hours of Bright Sunshine per day (46% of Daylight Hours) in September in St John 6 Hours per day in September
Hours of Daylight (Daily) 12 Hours of Daylight in September in St John 12 Hours per day in September
Heat and Humidity Discomfort No heat & humidity in September in St John None in September
Days with some Rainfall 11 Days with some Rainfall in September in St John 11 Days in September
Monthly Rainfall (mm) 104 mm (4.1 inches) Monthly Rainfall in September in St John 104 mm (4.1 inches) in September
UV Index (Maximum) UV (Maximum) Index 5 (Moderate) in September in St John 5 (Moderate) in September
Sea Temperature (°C) 14°C (57°F) Sea Temperature in September in St John 14°C (57°F) in September
All Months Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C)  |  Imperial (°F) 
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Map of New Brunswick

Select a destination from the New Brunswick Map to view the september weather guide. Alternatively, select from the list of destinations below the map. Can't find the New Brunswick weather destination you are after? Try the Destination Search.

Bathurst   Cape Enrage   Fredericton   Parlee Beach  

St John weather by month

Check the weather for a particular month in St John by selecting a month from the list below. Alternatively check which month usually has the Best Weather in St John. If you are not sure where to go, why not try our Holiday Planner.

   
 
 

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