Weather in St Helier in August 2018

  • 20°C maximum daytime temperature in August in St Helier20
    20°C max day temperature
  • 8 hours of sunshine per day (52% of daylight hours) in August in St Helier8
    8 hours of sunshine per day
  • 11 days with some rainfall in August in St Helier11
    11 days with some rainfall
  • 14°C minimum night-time temperature in August in St Helier14
    14°C min night temperature
  • 14 hours of daylight per day in August in St Helier14
    14 hours of daylight per day
  • No heat & humidity in August in St Helier0
    No heat & humidity
  • 52 mm monthly rainfall in August in St Helier52
    52 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in St Helier6
    6 (High) UV index
  • 18°C sea temperature in August in St Helier18
    18°C sea temperature

Expect 20°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Helier in August. Check more long-term weather averages for St Helier in August before you book your next holiday to Jersey in 2018.

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Guide to St Helier weather in August

The average maximum daytime temperature in St Helier in August is a comfortable 20°C (68°F). The average night-time temperature is usually a comfortable 14°C (57°F). There are usually 8 hours of bright sunshine each day, which represents 52% of the 14 hours of daylight.

Expect 52mm (2.0 inches) of rainfall across the whole of August with 11 days with some rain falling. Maximum UV levels will be high (6 UV index) at midday when the skies are clear.

The average sea temperature in and around St Helier in August is 18°C (64°F).

The weather in St Helier in August is represented by St Helier.

St Helier sunrise & sunset times for August 2018

Browse the sunrise & sunset times for St Helier in August 2018. Select a month to view St Helier sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Wednesday, 1st August 2018 05:40 20:48
Thursday, 2nd August 2018 05:42 20:47
Friday, 3rd August 2018 05:43 20:45
Saturday, 4th August 2018 05:45 20:44
Sunday, 5th August 2018 05:46 20:42
Monday, 6th August 2018 05:47 20:40
Tuesday, 7th August 2018 05:49 20:39
Wednesday, 8th August 2018 05:50 20:37
Thursday, 9th August 2018 05:52 20:35
Friday, 10th August 2018 05:53 20:34
Saturday, 11th August 2018 05:54 20:32
Sunday, 12th August 2018 05:56 20:30
Monday, 13th August 2018 05:57 20:28
Tuesday, 14th August 2018 05:59 20:27
Wednesday, 15th August 2018 06:00 20:25
Thursday, 16th August 2018 06:01 20:23
Friday, 17th August 2018 06:03 20:21
Saturday, 18th August 2018 06:04 20:19
Sunday, 19th August 2018 06:06 20:17
Monday, 20th August 2018 06:07 20:15
Tuesday, 21st August 2018 06:09 20:14
Wednesday, 22nd August 2018 06:10 20:12
Thursday, 23rd August 2018 06:11 20:10
Friday, 24th August 2018 06:13 20:08
Saturday, 25th August 2018 06:14 20:06
Sunday, 26th August 2018 06:16 20:04
Monday, 27th August 2018 06:17 20:02
Tuesday, 28th August 2018 06:19 20:00
Wednesday, 29th August 2018 06:20 19:58
Thursday, 30th August 2018 06:22 19:56
Friday, 31st August 2018 06:23 19:54
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St Helier weather by month

Check St Helier 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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