St Peter Port weather 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
  • 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
  • Top deals & discounts
  • St Peter Port weather overview
  • St Peter Port climate averages by month
  • More destinations
  • Best time to go to St Peter Port
  • St Peter Port 5-day weather forecast

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

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.

  • Save at least 15% on hotels in the Booking.com getaway sale
  • Book hotels in Rome, Bangkok, Marrakech & more
  • Travel before 31st August 2019 (inclusive)

Expires at 23:59 on Saturday 31st Aug 2019 · View all Booking.com offers

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
Sunday, 15th September 2019 06:46 19:24
Monday, 30th September 2019 07:08 18:52
  • Save up to 60% on hotels with Priceline Express Deals
  • Search for cheap hotel deals by city or airport
  • Filter deals by star rating, price, amenities & hotel area

Back to top

More Guernsey destinations

All Guernsey destinations >>

Related posts

Popular travel offers

Top ^