St John weather in September 2019

  • 18°C maximum daytime temperature in September in St John18
    18°C max day temperature
  • 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

Going to St John? Find the best month to visit St John based on the weather.

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Expect 18°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in St John in September. Check more long-term weather averages for St John in September before you book your next holiday to New Brunswick in 2019/2020.

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More about St John

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The September weather guide for St John, New Brunswick shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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

Guide to St John weather in September

The average maximum daytime temperature in St John in September is a comfortable 18°C (64°F). The average night-time temperature is usually a cool 10°C (50°F). There are usually 6 hours of bright sunshine each day, which represents 46% of the 12 hours of daylight.

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 sea temperature in and around St John in September is 13°C (55°F).

St John sunrise & sunset times for September 2019

Browse the sunrise & sunset times for St John in September 2019. Select a month to view St John sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 06:46 20:02
Monday, 2nd September 2019 06:47 20:00
Tuesday, 3rd September 2019 06:48 19:59
Wednesday, 4th September 2019 06:49 19:57
Thursday, 5th September 2019 06:50 19:55
Friday, 6th September 2019 06:52 19:53
Saturday, 7th September 2019 06:53 19:51
Sunday, 8th September 2019 06:54 19:49
Monday, 9th September 2019 06:55 19:47
Tuesday, 10th September 2019 06:56 19:45
Wednesday, 11th September 2019 06:58 19:43
Thursday, 12th September 2019 06:59 19:42
Friday, 13th September 2019 07:00 19:40
Saturday, 14th September 2019 07:01 19:38
Sunday, 15th September 2019 07:02 19:36
Monday, 16th September 2019 07:04 19:34
Tuesday, 17th September 2019 07:05 19:32
Wednesday, 18th September 2019 07:06 19:30
Thursday, 19th September 2019 07:07 19:28
Friday, 20th September 2019 07:09 19:26
Saturday, 21st September 2019 07:10 19:24
Sunday, 22nd September 2019 07:11 19:22
Monday, 23rd September 2019 07:12 19:20
Tuesday, 24th September 2019 07:13 19:18
Wednesday, 25th September 2019 07:15 19:17
Thursday, 26th September 2019 07:16 19:15
Friday, 27th September 2019 07:17 19:13
Saturday, 28th September 2019 07:18 19:11
Sunday, 29th September 2019 07:20 19:09
Monday, 30th September 2019 07:21 19:07
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