Blackwater weather

The Blackwater weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Blackwater, Cornwall, England in 2019/2020.

Blackwater weather averages

Check the Blackwater 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 Blackwater, Cornwall, England.

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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Blackwater weather by month

Check the weather for Blackwater, Cornwall, England for a particular month by selecting from the list below. This gives the best indication of what to expect from the weather months in advance.

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Blackwater weather in January

The average maximum daytime temperature in Blackwater in January 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 Blackwater during January.

  • 9°C maximum daytime temperature in January in Blackwater9
    9°C max day temperature
  • 2 hours of sunshine per day in January in Blackwater2
    2 hours of sunshine per day
  • 21 days with some rainfall in January in Blackwater21
    21 days with some rainfall
  • 4°C minimum night-time temperature in January in Blackwater4
    4°C min night temperature
  • 138 mm monthly rainfall in January in Blackwater138
    138 mm of monthly rainfall

On average 138 mm (5.4 inches) of rain normally falls in Blackwater during January with rain falling on 21 days of the month.

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Blackwater weather in February

The average maximum daytime temperature in Blackwater in February 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 3 hours of sunshine a day in Blackwater during February.

  • 9°C maximum daytime temperature in February in Blackwater9
    9°C max day temperature
  • 3 hours of sunshine per day in February in Blackwater3
    3 hours of sunshine per day
  • 17 days with some rainfall in February in Blackwater17
    17 days with some rainfall
  • 4°C minimum night-time temperature in February in Blackwater4
    4°C min night temperature
  • 106 mm monthly rainfall in February in Blackwater106
    106 mm of monthly rainfall

On average 106 mm (4.2 inches) of rain normally falls in Blackwater during February with rain falling on 17 days of the month.

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Blackwater weather in March

The average maximum daytime temperature in Blackwater in March is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 5°C (41°F). You can expect on average 4 hours of sunshine a day in Blackwater during March.

  • 10°C maximum daytime temperature in March in Blackwater10
    10°C max day temperature
  • 4 hours of sunshine per day in March in Blackwater4
    4 hours of sunshine per day
  • 17 days with some rainfall in March in Blackwater17
    17 days with some rainfall
  • 5°C minimum night-time temperature in March in Blackwater5
    5°C min night temperature
  • 93 mm monthly rainfall in March in Blackwater93
    93 mm of monthly rainfall

On average 93 mm (3.7 inches) of rain normally falls in Blackwater during March with rain falling on 17 days of the month.

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Blackwater weather in April

The average maximum daytime temperature in Blackwater in April is a cool 12°C (54°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 Blackwater during April.

  • 12°C maximum daytime temperature in April in Blackwater12
    12°C max day temperature
  • 6 hours of sunshine per day in April in Blackwater6
    6 hours of sunshine per day
  • 14 days with some rainfall in April in Blackwater14
    14 days with some rainfall
  • 6°C minimum night-time temperature in April in Blackwater6
    6°C min night temperature
  • 68 mm monthly rainfall in April in Blackwater68
    68 mm of monthly rainfall

On average 68 mm (2.7 inches) of rain normally falls in Blackwater during April with rain falling on 14 days of the month.

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Blackwater weather in May

The average maximum daytime temperature in Blackwater in May is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 7 hours of sunshine a day in Blackwater during May.

  • 15°C maximum daytime temperature in May in Blackwater15
    15°C max day temperature
  • 7 hours of sunshine per day in May in Blackwater7
    7 hours of sunshine per day
  • 13 days with some rainfall in May in Blackwater13
    13 days with some rainfall
  • 8°C minimum night-time temperature in May in Blackwater8
    8°C min night temperature
  • 64 mm monthly rainfall in May in Blackwater64
    64 mm of monthly rainfall

On average 64 mm (2.5 inches) of rain normally falls in Blackwater during May with rain falling on 13 days of the month.

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Blackwater weather in June

The average maximum daytime temperature in Blackwater in June is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 7 hours of sunshine a day in Blackwater during June.

  • 17°C maximum daytime temperature in June in Blackwater17
    17°C max day temperature
  • 7 hours of sunshine per day in June in Blackwater7
    7 hours of sunshine per day
  • 12 days with some rainfall in June in Blackwater12
    12 days with some rainfall
  • 11°C minimum night-time temperature in June in Blackwater11
    11°C min night temperature
  • 67 mm monthly rainfall in June in Blackwater67
    67 mm of monthly rainfall

On average 67 mm (2.6 inches) of rain normally falls in Blackwater during June with rain falling on 12 days of the month.

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Blackwater weather in July

The average maximum daytime temperature in Blackwater in July is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 13°C (55°F). You can expect on average 7 hours of sunshine a day in Blackwater during July.

  • 19°C maximum daytime temperature in July in Blackwater19
    19°C max day temperature
  • 7 hours of sunshine per day in July in Blackwater7
    7 hours of sunshine per day
  • 12 days with some rainfall in July in Blackwater12
    12 days with some rainfall
  • 13°C minimum night-time temperature in July in Blackwater13
    13°C min night temperature
  • 60 mm monthly rainfall in July in Blackwater60
    60 mm of monthly rainfall

On average 60 mm (2.4 inches) of rain normally falls in Blackwater during July with rain falling on 12 days of the month.

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Blackwater weather in August

The average maximum daytime temperature in Blackwater in August is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 13°C (55°F). You can expect on average 6 hours of sunshine a day in Blackwater during August.

  • 19°C maximum daytime temperature in August in Blackwater19
    19°C max day temperature
  • 6 hours of sunshine per day in August in Blackwater6
    6 hours of sunshine per day
  • 14 days with some rainfall in August in Blackwater14
    14 days with some rainfall
  • 13°C minimum night-time temperature in August in Blackwater13
    13°C min night temperature
  • 79 mm monthly rainfall in August in Blackwater79
    79 mm of monthly rainfall

On average 79 mm (3.1 inches) of rain normally falls in Blackwater during August with rain falling on 14 days of the month.

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Blackwater weather in September

The average maximum daytime temperature in Blackwater in September is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 5 hours of sunshine a day in Blackwater during September.

  • 17°C maximum daytime temperature in September in Blackwater17
    17°C max day temperature
  • 5 hours of sunshine per day in September in Blackwater5
    5 hours of sunshine per day
  • 15 days with some rainfall in September in Blackwater15
    15 days with some rainfall
  • 11°C minimum night-time temperature in September in Blackwater11
    11°C min night temperature
  • 88 mm monthly rainfall in September in Blackwater88
    88 mm of monthly rainfall

On average 88 mm (3.5 inches) of rain normally falls in Blackwater during September with rain falling on 15 days of the month.

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Blackwater weather in October

The average maximum daytime temperature in Blackwater in October is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 3 hours of sunshine a day in Blackwater during October.

  • 14°C maximum daytime temperature in October in Blackwater14
    14°C max day temperature
  • 3 hours of sunshine per day in October in Blackwater3
    3 hours of sunshine per day
  • 18 days with some rainfall in October in Blackwater18
    18 days with some rainfall
  • 9°C minimum night-time temperature in October in Blackwater9
    9°C min night temperature
  • 119 mm monthly rainfall in October in Blackwater119
    119 mm of monthly rainfall

On average 119 mm (4.7 inches) of rain normally falls in Blackwater during October with rain falling on 18 days of the month.

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Blackwater weather in November

The average maximum daytime temperature in Blackwater in November is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 2 hours of sunshine a day in Blackwater during November.

  • 11°C maximum daytime temperature in November in Blackwater11
    11°C max day temperature
  • 2 hours of sunshine per day in November in Blackwater2
    2 hours of sunshine per day
  • 20 days with some rainfall in November in Blackwater20
    20 days with some rainfall
  • 7°C minimum night-time temperature in November in Blackwater7
    7°C min night temperature
  • 136 mm monthly rainfall in November in Blackwater136
    136 mm of monthly rainfall

On average 136 mm (5.4 inches) of rain normally falls in Blackwater during November with rain falling on 20 days of the month.

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Blackwater weather in December

The average maximum daytime temperature in Blackwater in December is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 2 hours of sunshine a day in Blackwater during December.

  • 10°C maximum daytime temperature in December in Blackwater10
    10°C max day temperature
  • 2 hours of sunshine per day in December in Blackwater2
    2 hours of sunshine per day
  • 21 days with some rainfall in December in Blackwater21
    21 days with some rainfall
  • 6°C minimum night-time temperature in December in Blackwater6
    6°C min night temperature
  • 143 mm monthly rainfall in December in Blackwater143
    143 mm of monthly rainfall

On average 143 mm (5.6 inches) of rain normally falls in Blackwater during December with rain falling on 21 days of the month.

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