Channel Islands weather

The Channel Islands weather guide shows the monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for Channel Islands.

Channel Islands weather averages

Check the Channel Islands weather averages for each month of the year including maximum daytime and minimum night-time temperatures, monthly rainfall, number of days with rain and average daily hours of sunshine for Channel Islands. The Channel Islands weather averages shown below are for Saint Helier.

Max Day Temperature (°C)

Hours of Sunshine (daily)

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

Days with some Rainfall

Min Night Temperature (°C)

Monthly Rainfall (mm)

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Channel Islands weather by month

Check the weather for Channel Islands for a particular month by selecting from the list below. The Channel Islands monthly weather averages are for Saint Helier. This gives the best indication of what to expect from the weather months in advance.

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Channel Islands weather in January

The average maximum daytime temperature in Channel Islands (Saint Helier) in January is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 2 hours of sunshine a day in Channel Islands (Saint Helier) during January.

  • 8°C maximum daytime temperature in January in Channel Islands (Saint Helier)8
    8°C max day temperature
  • 2 hours of sunshine per day in January in Channel Islands2
    2 hours of sunshine per day
  • 19 days with some rainfall in January in Channel Islands (Saint Helier)19
    19 days with some rainfall
  • 3°C minimum night-time temperature in January in Channel Islands (Saint Helier)3
    3°C min night temperature
  • 114 mm monthly rainfall in January in Channel Islands (Saint Helier)114
    114 mm of monthly rainfall

On average 114 mm (4.5 inches) of rain normally falls in Channel Islands (Saint Helier) during January with rain falling on 19 days of the month.

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Channel Islands weather in February

The average maximum daytime temperature in Channel Islands (Saint Helier) in February is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 3 hours of sunshine a day in Channel Islands (Saint Helier) during February.

  • 9°C maximum daytime temperature in February in Channel Islands (Saint Helier)9
    9°C max day temperature
  • 3 hours of sunshine per day in February in Channel Islands3
    3 hours of sunshine per day
  • 17 days with some rainfall in February in Channel Islands (Saint Helier)17
    17 days with some rainfall
  • 3°C minimum night-time temperature in February in Channel Islands (Saint Helier)3
    3°C min night temperature
  • 88 mm monthly rainfall in February in Channel Islands (Saint Helier)88
    88 mm of monthly rainfall

On average 88 mm (3.5 inches) of rain normally falls in Channel Islands (Saint Helier) during February with rain falling on 17 days of the month.

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Channel Islands weather in March

The average maximum daytime temperature in Channel Islands (Saint Helier) in March is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 4 hours of sunshine a day in Channel Islands (Saint Helier) during March.

  • 11°C maximum daytime temperature in March in Channel Islands (Saint Helier)11
    11°C max day temperature
  • 4 hours of sunshine per day in March in Channel Islands4
    4 hours of sunshine per day
  • 17 days with some rainfall in March in Channel Islands (Saint Helier)17
    17 days with some rainfall
  • 4°C minimum night-time temperature in March in Channel Islands (Saint Helier)4
    4°C min night temperature
  • 84 mm monthly rainfall in March in Channel Islands (Saint Helier)84
    84 mm of monthly rainfall

On average 84 mm (3.3 inches) of rain normally falls in Channel Islands (Saint Helier) during March with rain falling on 17 days of the month.

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Channel Islands weather in April

The average maximum daytime temperature in Channel Islands (Saint Helier) in April is a cool 13°C (55°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 6 hours of sunshine a day in Channel Islands (Saint Helier) during April.

  • 13°C maximum daytime temperature in April in Channel Islands (Saint Helier)13
    13°C max day temperature
  • 6 hours of sunshine per day in April in Channel Islands6
    6 hours of sunshine per day
  • 14 days with some rainfall in April in Channel Islands (Saint Helier)14
    14 days with some rainfall
  • 6°C minimum night-time temperature in April in Channel Islands (Saint Helier)6
    6°C min night temperature
  • 66 mm monthly rainfall in April in Channel Islands (Saint Helier)66
    66 mm of monthly rainfall

On average 66 mm (2.6 inches) of rain normally falls in Channel Islands (Saint Helier) during April with rain falling on 14 days of the month.

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Channel Islands weather in May

The average maximum daytime temperature in Channel Islands (Saint Helier) in May is a comfortable 16°C (61°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 8 hours of sunshine a day in Channel Islands (Saint Helier) during May.

  • 16°C maximum daytime temperature in May in Channel Islands (Saint Helier)16
    16°C max day temperature
  • 8 hours of sunshine per day in May in Channel Islands8
    8 hours of sunshine per day
  • 14 days with some rainfall in May in Channel Islands (Saint Helier)14
    14 days with some rainfall
  • 9°C minimum night-time temperature in May in Channel Islands (Saint Helier)9
    9°C min night temperature
  • 68 mm monthly rainfall in May in Channel Islands (Saint Helier)68
    68 mm of monthly rainfall

On average 68 mm (2.7 inches) of rain normally falls in Channel Islands (Saint Helier) during May with rain falling on 14 days of the month.

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Channel Islands weather in June

The average maximum daytime temperature in Channel Islands (Saint Helier) in June is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 8 hours of sunshine a day in Channel Islands (Saint Helier) during June.

  • 19°C maximum daytime temperature in June in Channel Islands (Saint Helier)19
    19°C max day temperature
  • 8 hours of sunshine per day in June in Channel Islands8
    8 hours of sunshine per day
  • 13 days with some rainfall in June in Channel Islands (Saint Helier)13
    13 days with some rainfall
  • 11°C minimum night-time temperature in June in Channel Islands (Saint Helier)11
    11°C min night temperature
  • 63 mm monthly rainfall in June in Channel Islands (Saint Helier)63
    63 mm of monthly rainfall

On average 63 mm (2.5 inches) of rain normally falls in Channel Islands (Saint Helier) during June with rain falling on 13 days of the month.

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Channel Islands weather in July

The average maximum daytime temperature in Channel Islands (Saint Helier) in July is a comfortable 21°C (70°F), while the average minimum night-time temperature is a cool 13°C (55°F). You can expect on average 8 hours of sunshine a day in Channel Islands (Saint Helier) during July.

  • 21°C maximum daytime temperature in July in Channel Islands (Saint Helier)21
    21°C max day temperature
  • 8 hours of sunshine per day in July in Channel Islands8
    8 hours of sunshine per day
  • 11 days with some rainfall in July in Channel Islands (Saint Helier)11
    11 days with some rainfall
  • 13°C minimum night-time temperature in July in Channel Islands (Saint Helier)13
    13°C min night temperature
  • 49 mm monthly rainfall in July in Channel Islands (Saint Helier)49
    49 mm of monthly rainfall

On average 49 mm (1.9 inches) of rain normally falls in Channel Islands (Saint Helier) during July with rain falling on 11 days of the month.

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Channel Islands weather in August

The average maximum daytime temperature in Channel Islands (Saint Helier) in August is a warm 22°C (72°F), while the average minimum night-time temperature is a cool 13°C (55°F). You can expect on average 8 hours of sunshine a day in Channel Islands (Saint Helier) during August.

  • 22°C maximum daytime temperature in August in Channel Islands (Saint Helier)22
    22°C max day temperature
  • 8 hours of sunshine per day in August in Channel Islands8
    8 hours of sunshine per day
  • 12 days with some rainfall in August in Channel Islands (Saint Helier)12
    12 days with some rainfall
  • 13°C minimum night-time temperature in August in Channel Islands (Saint Helier)13
    13°C min night temperature
  • 67 mm monthly rainfall in August in Channel Islands (Saint Helier)67
    67 mm of monthly rainfall

On average 67 mm (2.6 inches) of rain normally falls in Channel Islands (Saint Helier) during August with rain falling on 12 days of the month.

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Channel Islands weather in September

The average maximum daytime temperature in Channel Islands (Saint Helier) in September is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Channel Islands (Saint Helier) during September.

  • 19°C maximum daytime temperature in September in Channel Islands (Saint Helier)19
    19°C max day temperature
  • 6 hours of sunshine per day in September in Channel Islands6
    6 hours of sunshine per day
  • 14 days with some rainfall in September in Channel Islands (Saint Helier)14
    14 days with some rainfall
  • 12°C minimum night-time temperature in September in Channel Islands (Saint Helier)12
    12°C min night temperature
  • 91 mm monthly rainfall in September in Channel Islands (Saint Helier)91
    91 mm of monthly rainfall

On average 91 mm (3.6 inches) of rain normally falls in Channel Islands (Saint Helier) during September with rain falling on 14 days of the month.

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Channel Islands weather in October

The average maximum daytime temperature in Channel Islands (Saint Helier) in October is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 4 hours of sunshine a day in Channel Islands (Saint Helier) during October.

  • 15°C maximum daytime temperature in October in Channel Islands (Saint Helier)15
    15°C max day temperature
  • 4 hours of sunshine per day in October in Channel Islands4
    4 hours of sunshine per day
  • 17 days with some rainfall in October in Channel Islands (Saint Helier)17
    17 days with some rainfall
  • 9°C minimum night-time temperature in October in Channel Islands (Saint Helier)9
    9°C min night temperature
  • 112 mm monthly rainfall in October in Channel Islands (Saint Helier)112
    112 mm of monthly rainfall

On average 112 mm (4.4 inches) of rain normally falls in Channel Islands (Saint Helier) during October with rain falling on 17 days of the month.

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Channel Islands weather in November

The average maximum daytime temperature in Channel Islands (Saint Helier) in November is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 3 hours of sunshine a day in Channel Islands (Saint Helier) during November.

  • 11°C maximum daytime temperature in November in Channel Islands (Saint Helier)11
    11°C max day temperature
  • 3 hours of sunshine per day in November in Channel Islands3
    3 hours of sunshine per day
  • 19 days with some rainfall in November in Channel Islands (Saint Helier)19
    19 days with some rainfall
  • 6°C minimum night-time temperature in November in Channel Islands (Saint Helier)6
    6°C min night temperature
  • 123 mm monthly rainfall in November in Channel Islands (Saint Helier)123
    123 mm of monthly rainfall

On average 123 mm (4.8 inches) of rain normally falls in Channel Islands (Saint Helier) during November with rain falling on 19 days of the month.

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Channel Islands weather in December

The average maximum daytime temperature in Channel Islands (Saint Helier) in December is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 2 hours of sunshine a day in Channel Islands (Saint Helier) during December.

  • 9°C maximum daytime temperature in December in Channel Islands (Saint Helier)9
    9°C max day temperature
  • 2 hours of sunshine per day in December in Channel Islands2
    2 hours of sunshine per day
  • 19 days with some rainfall in December in Channel Islands (Saint Helier)19
    19 days with some rainfall
  • 4°C minimum night-time temperature in December in Channel Islands (Saint Helier)4
    4°C min night temperature
  • 127 mm monthly rainfall in December in Channel Islands (Saint Helier)127
    127 mm of monthly rainfall

On average 127 mm (5 inches) of rain normally falls in Channel Islands (Saint Helier) during December with rain falling on 19 days of the month.

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Channel Islands destinations

Browse the destinations below to find a holiday weather guide to help you plan your next holiday to Channel Islands. If you can't find the destination you are looking for, try the destination search.

Top destinations in the Channel Islands

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Islands in Channel Islands

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