Weather in St Peter Port in September 2019

  • 18°C maximum daytime temperature in September in St Peter Port18
    18°C max day temperature
  • 6 hours of sunshine per day (45% of daylight hours) in September in St Peter Port6
    6 hours of sunshine per day
  • 13 days with some rainfall in September in St Peter Port13
    13 days with some rainfall
  • 13°C minimum night-time temperature in September in St Peter Port13
    13°C min night temperature
  • 13 hours of daylight per day in September in St Peter Port13
    13 hours of daylight per day
  • No heat & humidity in September in St Peter Port0
    No heat & humidity
  • 63 mm monthly rainfall in September in St Peter Port63
    63 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in St Peter Port4
    4 (Moderate) UV index
  • 17°C sea temperature in September in St Peter Port17
    17°C sea temperature

Going to St Peter Port? Find the best month to visit St Peter Port 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 Peter Port in September. Check more long-term weather averages for St Peter Port in September before you book your next holiday to Guernsey in 2019/2020.

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More about St Peter Port

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The September weather guide for St Peter Port, Guernsey 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 Peter Port weather in September

The average maximum daytime temperature in St Peter Port in September is a comfortable 18°C (64°F). The average night-time temperature is usually a cool 13°C (55°F). There are usually 6 hours of bright sunshine each day, which represents 45% of the 13 hours of daylight.

Expect 63mm (2.5 inches) of rainfall across the whole of September with 13 days with some rain falling. Maximum UV levels will be moderate (4 UV index) at midday when the skies are clear.

The average sea temperature in and around St Peter Port in September is 17°C (63°F).

St Peter Port sunrise & sunset times for September 2019

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 06:25 19:54
Monday, 2nd September 2019 06:27 19:52
Tuesday, 3rd September 2019 06:28 19:50
Wednesday, 4th September 2019 06:30 19:48
Thursday, 5th September 2019 06:31 19:46
Friday, 6th September 2019 06:33 19:44
Saturday, 7th September 2019 06:34 19:41
Sunday, 8th September 2019 06:36 19:39
Monday, 9th September 2019 06:37 19:37
Tuesday, 10th September 2019 06:38 19:35
Wednesday, 11th September 2019 06:40 19:33
Thursday, 12th September 2019 06:41 19:31
Friday, 13th September 2019 06:43 19:29
Saturday, 14th September 2019 06:44 19:26
Sunday, 15th September 2019 06:46 19:24
Monday, 16th September 2019 06:47 19:22
Tuesday, 17th September 2019 06:49 19:20
Wednesday, 18th September 2019 06:50 19:18
Thursday, 19th September 2019 06:52 19:15
Friday, 20th September 2019 06:53 19:13
Saturday, 21st September 2019 06:55 19:11
Sunday, 22nd September 2019 06:56 19:09
Monday, 23rd September 2019 06:57 19:07
Tuesday, 24th September 2019 06:59 19:05
Wednesday, 25th September 2019 07:00 19:02
Thursday, 26th September 2019 07:02 19:00
Friday, 27th September 2019 07:03 18:58
Saturday, 28th September 2019 07:05 18:56
Sunday, 29th September 2019 07:06 18:54
Monday, 30th September 2019 07:08 18:52
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