Weather in St John in September 2017

Check the weather in St John in September before you book your next holiday in New Brunswick. Long-term weather averages give the best indication of the weather in September 2017 and include figures for temperature, sunshine and rainfall plus sunrise & sunset times for St John, New Brunswick, Canada.

Weather in St John in September

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  • 18°C maximum daytime temperature in September in St John18
    18°C max day temperature
  • 6 hours of sunshine per day (46% of daylight hours) in September in St John6
    6 hours of sunshine per day
  • 11 days with some rainfall in September in St John11
    11 days with some rainfall
  • 10°C minimum night-time temperature in September in St John10
    10°C min night temperature
  • 12 hours of daylight per day in September in St John12
    12 hours of daylight per day
  • No heat & humidity in September in St John0
    No heat & humidity
  • 104 mm monthly rainfall in September in St John104
    104 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in St John5
    5 (Moderate) UV index
  • 13°C sea temperature in September in St John13
    13°C sea temperature

The average maximum daytime temperature in St John in September is a comfortable 18°C (64°F). There are usually 6 hours of bright sunshine each day, which represents 46% of the 12 hours of daylight. The average sea temperature in and around St John in September is 13°C (55°F).

Expect 104mm (4.1 inches) of rainfall across the whole of September with 11 days with some rain falling. Maximum UV levels will be moderate (5 UV index) at midday when the skies are clear. The average night-time temperature is usually a cool 10°C (50°F).

Metric (°C / mm)  |  Imperial (°F / inches)

More about St John weather

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St John sunrise & sunset times for September 2017

Browse the sunrise & sunset times for St John in September 2017. Select a month to view St John sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Friday, 1st September 2017 06:46 20:01
Saturday, 2nd September 2017 06:47 19:59
Sunday, 3rd September 2017 06:49 19:58
Monday, 4th September 2017 06:50 19:56
Tuesday, 5th September 2017 06:51 19:54
Wednesday, 6th September 2017 06:52 19:52
Thursday, 7th September 2017 06:53 19:50
Friday, 8th September 2017 06:55 19:48
Saturday, 9th September 2017 06:56 19:46
Sunday, 10th September 2017 06:57 19:44
Monday, 11th September 2017 06:58 19:43
Tuesday, 12th September 2017 06:59 19:41
Wednesday, 13th September 2017 07:01 19:39
Thursday, 14th September 2017 07:02 19:37
Friday, 15th September 2017 07:03 19:35
Saturday, 16th September 2017 07:04 19:33
Sunday, 17th September 2017 07:05 19:31
Monday, 18th September 2017 07:07 19:29
Tuesday, 19th September 2017 07:08 19:27
Wednesday, 20th September 2017 07:09 19:25
Thursday, 21st September 2017 07:10 19:23
Friday, 22nd September 2017 07:12 19:21
Saturday, 23rd September 2017 07:13 19:19
Sunday, 24th September 2017 07:14 19:18
Monday, 25th September 2017 07:15 19:16
Tuesday, 26th September 2017 07:16 19:14
Wednesday, 27th September 2017 07:18 19:12
Thursday, 28th September 2017 07:19 19:10
Friday, 29th September 2017 07:20 19:08
Saturday, 30th September 2017 07:21 19:06
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St John weather by month

Check St John weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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