Saint John Weather in October
October in Saint John sees daytime temperatures around 13°C (55°F) and lows of 7°C (45°F) at night. With around 136 mm (5.4 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Saint John in October
Typically, you can expect about 12 days of rain this month, with 136 mm (5.4 in) on average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Saint John in October
Expect highs of 13°C (55°F) in Saint John in October, with nights dropping to around 7°C (45°F). Conditions are often most pleasant around the middle of the day. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.If you prefer dry days with pleasant temperatures, October may not be the ideal month to visit Saint John. Our weather planner can help you explore destinations with more pleasant weather conditions.
Saint John Temperature in October
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Saint John Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint John - and find the best time to visit.
Best Places in Canada in October
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in October →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Saint John in October
The weather can be unpredictable in October, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
What To Do in Saint John in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling5/10 -
Walking5/10 -
Barbeque4/10 -
Camping3/10 -
Outdoor sports9/10
Saint John 3-Day Forecast
See the full Saint John climate overview or explore weather in Canada.
Popular in October
Where to go in October - average daytime high across popular destinations.
Toronto
16°C (61°F) Niagara Falls15°C (59°F) Montréal14°C (57°F) Ottawa14°C (57°F) Vancouver
14°C (57°F) Quebec City12°C (54°F) Calgary
12°C (54°F) Whistler7°C (45°F) 
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