Weather in St John's in September 2017

Check the weather in St John's in September based on long-term weather averages before you book your next holiday to Antigua in 2017. Expect daytime temperatures to reach 31°C with on average 7 hours of sunshine per day in St John's in September.

What is the weather like in St John's in September?
How hot is St John's in September? 31°C
How sunny is St John's in September? 7 sunshine hours/day
How wet is St John's in September? 140 mm rainfall
How warm is the sea around St John's in September? 29°C

Weather in St John's in September

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

  • 31°C maximum daytime temperature in September in St John's31
    31°C max day temperature
  • 7 hours of sunshine per day (61% of daylight hours) in September in St John's7
    7 hours of sunshine per day
  • 17 days with some rainfall in September in St John's17
    17 days with some rainfall
  • 25°C minimum night-time temperature in September in St John's25
    25°C min night temperature
  • 12 hours of daylight per day in September in St John's12
    12 hours of daylight per day
  • Very high heat & humidity in September in St John'sVH
    Very High heat & humidity
  • 140 mm monthly rainfall in September in St John's140
    140 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in St John's11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in St John's29
    29°C sea temperature

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

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More about St John's

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More about St John's weather in September

The average maximum daytime temperature in St John's in September is a hot 31°C (88°F) with very high heat & humidity. There are usually 7 hours of bright sunshine each day, which represents 61% of the 12 hours of daylight. The average sea temperature in and around St John's in September is 29°C (84°F).

Expect 140mm (5.5 inches) of rainfall across the whole of September with 17 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear. The average night-time temperature is usually a warm 25°C (77°F). The weather in St John's in September is represented by St John's.

St John's sunrise & sunset times for September 2017

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st September 2017 05:54 18:21
Saturday, 2nd September 2017 05:54 18:20
Sunday, 3rd September 2017 05:54 18:19
Monday, 4th September 2017 05:54 18:18
Tuesday, 5th September 2017 05:54 18:17
Wednesday, 6th September 2017 05:54 18:17
Thursday, 7th September 2017 05:55 18:16
Friday, 8th September 2017 05:55 18:15
Saturday, 9th September 2017 05:55 18:14
Sunday, 10th September 2017 05:55 18:13
Monday, 11th September 2017 05:55 18:12
Tuesday, 12th September 2017 05:55 18:12
Wednesday, 13th September 2017 05:55 18:11
Thursday, 14th September 2017 05:55 18:10
Friday, 15th September 2017 05:56 18:09
Saturday, 16th September 2017 05:56 18:08
Sunday, 17th September 2017 05:56 18:07
Monday, 18th September 2017 05:56 18:07
Tuesday, 19th September 2017 05:56 18:06
Wednesday, 20th September 2017 05:56 18:05
Thursday, 21st September 2017 05:56 18:04
Friday, 22nd September 2017 05:56 18:03
Saturday, 23rd September 2017 05:57 18:02
Sunday, 24th September 2017 05:57 18:02
Monday, 25th September 2017 05:57 18:01
Tuesday, 26th September 2017 05:57 18:00
Wednesday, 27th September 2017 05:57 17:59
Thursday, 28th September 2017 05:57 17:58
Friday, 29th September 2017 05:57 17:58
Saturday, 30th September 2017 05:57 17:57
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St John's weather by month

Check St John's 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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