St John's weather in September 2019

  • 16°C maximum daytime temperature in September in St John's16
    16°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in September in St John's15
    15 days with some rainfall
  • 8°C minimum night-time temperature in September in St John's8
    8°C min night temperature
  • 13 hours of daylight per day in September in St John's13
    13 hours of daylight per day
  • No heat & humidity in September in St John's0
    No heat & humidity
  • 117 mm monthly rainfall in September in St John's117
    117 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in St John's5
    5 (Moderate) UV index
  • 12°C sea temperature in September in St John's12
    12°C sea temperature

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

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Expect 16°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in St John's in September. Check more long-term weather averages for St John's in September before you book your next holiday to Newfoundland & Labrador in 2019/2020.

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More about St John's

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The September weather guide for St John's, Newfoundland & Labrador 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's weather in September

The average maximum daytime temperature in St John's in September is a comfortable 16°C (61°F). The average night-time temperature is usually a cool 8°C (46°F). There are usually 5 hours of bright sunshine each day, which represents 38% of the 13 hours of daylight.

Expect 117mm (4.6 inches) of rainfall across the whole of September with 15 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's in September is 12°C (54°F).

St John's sunrise & sunset times for September 2019

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 06:19 19:42
Monday, 2nd September 2019 06:20 19:40
Tuesday, 3rd September 2019 06:22 19:38
Wednesday, 4th September 2019 06:23 19:36
Thursday, 5th September 2019 06:24 19:34
Friday, 6th September 2019 06:26 19:32
Saturday, 7th September 2019 06:27 19:30
Sunday, 8th September 2019 06:28 19:28
Monday, 9th September 2019 06:30 19:26
Tuesday, 10th September 2019 06:31 19:24
Wednesday, 11th September 2019 06:33 19:22
Thursday, 12th September 2019 06:34 19:20
Friday, 13th September 2019 06:35 19:18
Saturday, 14th September 2019 06:37 19:16
Sunday, 15th September 2019 06:38 19:14
Monday, 16th September 2019 06:39 19:12
Tuesday, 17th September 2019 06:41 19:10
Wednesday, 18th September 2019 06:42 19:07
Thursday, 19th September 2019 06:43 19:05
Friday, 20th September 2019 06:45 19:03
Saturday, 21st September 2019 06:46 19:01
Sunday, 22nd September 2019 06:47 18:59
Monday, 23rd September 2019 06:49 18:57
Tuesday, 24th September 2019 06:50 18:55
Wednesday, 25th September 2019 06:51 18:53
Thursday, 26th September 2019 06:53 18:51
Friday, 27th September 2019 06:54 18:49
Saturday, 28th September 2019 06:55 18:47
Sunday, 29th September 2019 06:57 18:45
Monday, 30th September 2019 06:58 18:43
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