Saint John
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Saint John Weather in October

Saint John in October sees high temperatures, with highs around 29°C (84°F) and overnight lows of 26°C (79°F). Rainfall is fairly high at around 140 mm (5.5 in) on average, so pack waterproofs just in case.

Rainfall in Saint John in October

This month experiences about 19 days of rain according to historical data, averaging 140 mm (5.5 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Saint John in October

In October, expect high temperatures in Saint John, with highs of 29°C (84°F) and lows of 26°C (79°F) at night. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.

Should you favor a climate that's both dry and comfortably warm, January, February, March, April, May, June, July and December typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Saint John Temperature in October

Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
64%
Precipitation
140 mm (5.5 in)
Rainy days
19 days

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.

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Saint John typically stay consistent throughout October, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in October

Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in October

Historical weather records for Saint John in October

Browse day-by-day weather records for Saint John spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Saint John historical weather extremes in October

Our historical data for Saint John spans 1997 to 2025, revealing these weather extremes.

  • The hottest October day on record in Saint John reached 35°C (95°F) (October 6, 1997).
  • The lowest daytime temperature in October was 27°C (81°F), recorded on October 27, 2007.
  • Saint John registered its coldest October night on October 27, 2007, with temperatures dropping to 21°C (70°F).

Best Places in US Virgin Islands in October

Find out more about the weather in US Virgin Islands and which places have the best travel conditions in this month. See all of US Virgin Islands in October →

perfect weather
pleasant
tolerable
unpleasant
poor

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

Warm but pleasant conditions in Saint John in October. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags.

What To Do in Saint John in October

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    7/10
  • Outdoor sports
    7/10

Saint John 3-Day Forecast

More climate data for Saint John

Popular in October

Where to go in October - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.