October weather forecastSaint John, Canada
October
Weather in October
Weather in October is a meteorological signal of Autumn’s presence in Saint John, Canada. The city begins to paint itself with vibrant autumn colors, providing a picturesque view for locals and tourists. The weather becomes noticeably cooler, calling for an extra layer of clothing. It's time for hot chocolates, cozy sweaters, and fall festivals under the October sky. The temperatures strikingly shift to a cooler spectrum, ranging between 6.9°C (44.4°F) and 12.5°C (54.5°F).Temperature
October comes with a drop in the average high-temperature, falling from September's comfortable 18°C (64.4°F) to a cool 12.5°C (54.5°F). In the month of October, Saint John's average low-temperature falls to a chilly 6.9°C (44.4°F).Humidity
October and November, with an average relative humidity of 80%, are the least humid months in Saint John.Rainfall
In Saint John, during October, the rain falls for 11 days and regularly aggregates up to 35mm (1.38") of precipitation. In Saint John, Canada, during the entire year, the rain falls for 122.4 days and collects up to 390mm (15.35") of precipitation.Snowfall
In Saint John, snow does not fall in June through October.Sea temperature
In October, the average sea temperature is 11.4°C (52.5°F).Note: It is risky to swim in 11.4°C (52.5°F). Temperatures beneath 10°C (50°F) induce rapid cold shock and hyperventilation.
Daylight
The average length of the day in October is 10h and 56min.On the first day of the month, sunrise is at 7:23 am and sunset at 7:04 pm. On the last day of October, sunrise is at 8:02 am and sunset at 6:12 pm ADT.
Sunshine
In October, the average sunshine is 5.1h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In October, the maximum UV index of 2 translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Saint John, Canada
- Average high temperature in October: 12.5°C
The warmest month (with the highest average high temperature) is August (21.5°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in October: 6.9°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-8.6°C).
Average pressure in October
Saint John, Canada
- Average pressure in October: 1015.4mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).
Average wind speed in October
Saint John, Canada
- Average wind speed in October: 17.2km/h
The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).
Average humidity in October
Saint John, Canada
- Average humidity in October: 80%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are October and November (80%).
Average rainfall in October
Saint John, Canada
- Average rainfall in October: 35mm
The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is August (22mm).
Average rainfall days in October
Saint John, Canada
- Average rainfall days in October: 11 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in October
Saint John, Canada
- Average snowfall in October: 0mm
The month with the highest snowfall is January (40mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in October
Saint John, Canada
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is March (9.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in October
Saint John, Canada
- Average sea temperature in October: 11.4°C
The best month for swimming (with the highest average sea temperature) is August (13.3°C).
The coldest month (with the lowest average sea temperature) is March (2.9°C).
Average daylight in October /
Average sunshine in October
Saint John, Canada
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in October: 5h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in October
Saint John, Canada
- Average sunshine days in October: 18.4 days
The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in October
Saint John, Canada
- Average UV index in October: 2
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in October
Saint John, Canada
- Average cloud cover in October: 45
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in October
Saint John, Canada
- Average visibility in October: 10km
The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (9km).
