Casterton weather

The Casterton weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Casterton, Cumbria, England in 2026/2027.

• Casterton weather averages
• Casterton weather by month
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Casterton weather averages

Check the Casterton 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 Casterton, Cumbria, England.

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Casterton weather by month

Check the weather for Casterton, Cumbria, 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.

• January
• February
• March
• April
• May
• June
• July
• August
• September
• October
• November
• December

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Casterton weather in January

The average maximum daytime temperature in Casterton in January is a cold 6°C (43°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 1 hours of sunshine a day in Casterton during January.

• 6
  6°C max day temperature
• 1
  1 hour of sunshine per day
• 21
  21 days with some rainfall
• 1
  1°C min night temperature
• 192
  192 mm of monthly rainfall

On average 192 mm (7.6 inches) of rain normally falls in Casterton during January with rain falling on 21 days of the month.

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Casterton weather in February

The average maximum daytime temperature in Casterton in February is a cold 6°C (43°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 2 hours of sunshine a day in Casterton during February.

• 6
  6°C max day temperature
• 2
  2 hours of sunshine per day
• 17
  17 days with some rainfall
• 1
  1°C min night temperature
• 129
  129 mm of monthly rainfall

On average 129 mm (5.1 inches) of rain normally falls in Casterton during February with rain falling on 17 days of the month.

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Casterton weather in March

The average maximum daytime temperature in Casterton in March is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 3 hours of sunshine a day in Casterton during March.

• 8
  8°C max day temperature
• 3
  3 hours of sunshine per day
• 18
  18 days with some rainfall
• 2
  2°C min night temperature
• 155
  155 mm of monthly rainfall

On average 155 mm (6.1 inches) of rain normally falls in Casterton during March with rain falling on 18 days of the month.

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Casterton weather in April

The average maximum daytime temperature in Casterton in April is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 5 hours of sunshine a day in Casterton during April.

• 11
  11°C max day temperature
• 5
  5 hours of sunshine per day
• 16
  16 days with some rainfall
• 3
  3°C min night temperature
• 96
  96 mm of monthly rainfall

On average 96 mm (3.8 inches) of rain normally falls in Casterton during April with rain falling on 16 days of the month.

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Casterton weather in May

The average maximum daytime temperature in Casterton in May is a comfortable 15°C (59°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 Casterton during May.

• 15
  15°C max day temperature
• 6
  6 hours of sunshine per day
• 15
  15 days with some rainfall
• 6
  6°C min night temperature
• 90
  90 mm of monthly rainfall

On average 90 mm (3.5 inches) of rain normally falls in Casterton during May with rain falling on 15 days of the month.

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Casterton weather in June

The average maximum daytime temperature in Casterton in June is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 6 hours of sunshine a day in Casterton during June.

• 17
  17°C max day temperature
• 6
  6 hours of sunshine per day
• 16
  16 days with some rainfall
• 9
  9°C min night temperature
• 103
  103 mm of monthly rainfall

On average 103 mm (4.1 inches) of rain normally falls in Casterton during June with rain falling on 16 days of the month.

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Casterton weather in July

The average maximum daytime temperature in Casterton in July 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 5 hours of sunshine a day in Casterton during July.

• 19
  19°C max day temperature
• 5
  5 hours of sunshine per day
• 16
  16 days with some rainfall
• 11
  11°C min night temperature
• 103
  103 mm of monthly rainfall

On average 103 mm (4.1 inches) of rain normally falls in Casterton during July with rain falling on 16 days of the month.

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Casterton weather in August

The average maximum daytime temperature in Casterton in August is a comfortable 18°C (64°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 Casterton during August.

• 18
  18°C max day temperature
• 5
  5 hours of sunshine per day
• 17
  17 days with some rainfall
• 11
  11°C min night temperature
• 128
  128 mm of monthly rainfall

On average 128 mm (5 inches) of rain normally falls in Casterton during August with rain falling on 17 days of the month.

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Casterton weather in September

The average maximum daytime temperature in Casterton in September 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 4 hours of sunshine a day in Casterton during September.

• 16
  16°C max day temperature
• 4
  4 hours of sunshine per day
• 18
  18 days with some rainfall
• 9
  9°C min night temperature
• 155
  155 mm of monthly rainfall

On average 155 mm (6.1 inches) of rain normally falls in Casterton during September with rain falling on 18 days of the month.

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Casterton weather in October

The average maximum daytime temperature in Casterton in October 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 3 hours of sunshine a day in Casterton during October.

• 12
  12°C max day temperature
• 3
  3 hours of sunshine per day
• 20
  20 days with some rainfall
• 6
  6°C min night temperature
• 199
  199 mm of monthly rainfall

On average 199 mm (7.8 inches) of rain normally falls in Casterton during October with rain falling on 20 days of the month.

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Casterton weather in November

The average maximum daytime temperature in Casterton in November 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 Casterton during November.

• 8
  8°C max day temperature
• 2
  2 hours of sunshine per day
• 20
  20 days with some rainfall
• 3
  3°C min night temperature
• 195
  195 mm of monthly rainfall

On average 195 mm (7.7 inches) of rain normally falls in Casterton during November with rain falling on 20 days of the month.

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Casterton weather in December

The average maximum daytime temperature in Casterton in December is a cold 6°C (43°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 1 hours of sunshine a day in Casterton during December.

• 6
  6°C max day temperature
• 1
  1 hour of sunshine per day
• 21
  21 days with some rainfall
• 1
  1°C min night temperature
• 214
  214 mm of monthly rainfall

On average 214 mm (8.4 inches) of rain normally falls in Casterton during December with rain falling on 21 days of the month.

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