Saint John weather in September (New Brunswick, Canada)
Wondering what the weather is like in Saint John during September? Our guide gives you the essential weather details for this month.
Temperatures
The month of September in Saint John typically includes pleasant temperatures and high rainfall. The summer season takes place during September. Expect temperatures to climb to 18°C during the day, with nighttime readings dropping to 12°C.
Precipitation
Saint John in September usually receives high rainfall, averaging around 115 mm for the month. Based on our climate data of the past 30 years, about 11 days of rain are anticipated.If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. While January, February, March, April, May, October, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Saint John climate page with graphs.
Saint John, monthly averages in September
Min Temperature
12°C
Max Temperature
18°C
Chance of Rain
37%
Precipitation
115 mm
Rainy days
11 days
Where to go in Canada in September
Find out more about the weather in Canada and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
For visitors traveling to Saint John, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in Saint John.
Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
