Castlebay weather

The Castlebay weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Castlebay, Outer Hebrides, Scotland in 2026/2027.

• Castlebay weather averages
• Castlebay weather by month
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Castlebay weather averages

Check the Castlebay 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 Castlebay, Outer Hebrides, Scotland.

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Castlebay weather by month

Check the weather for Castlebay, Outer Hebrides, Scotland 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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Castlebay weather in January

The average maximum daytime temperature in Castlebay in January is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 1 hours of sunshine a day in Castlebay during January.

• 7
  7°C max day temperature
• 1
  1 hour of sunshine per day
• 23
  23 days with some rainfall
• 2
  2°C min night temperature
• 199
  199 mm of monthly rainfall

On average 199 mm (7.8 inches) of rain normally falls in Castlebay during January with rain falling on 23 days of the month.

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Castlebay weather in February

The average maximum daytime temperature in Castlebay in February is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 2 hours of sunshine a day in Castlebay during February.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 20
  20 days with some rainfall
• 2
  2°C min night temperature
• 140
  140 mm of monthly rainfall

On average 140 mm (5.5 inches) of rain normally falls in Castlebay during February with rain falling on 20 days of the month.

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Castlebay weather in March

The average maximum daytime temperature in Castlebay 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 4 hours of sunshine a day in Castlebay during March.

• 8
  8°C max day temperature
• 4
  4 hours of sunshine per day
• 21
  21 days with some rainfall
• 2
  2°C min night temperature
• 154
  154 mm of monthly rainfall

On average 154 mm (6.1 inches) of rain normally falls in Castlebay during March with rain falling on 21 days of the month.

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Castlebay weather in April

The average maximum daytime temperature in Castlebay in April is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 6 hours of sunshine a day in Castlebay during April.

• 10
  10°C max day temperature
• 6
  6 hours of sunshine per day
• 18
  18 days with some rainfall
• 4
  4°C min night temperature
• 97
  97 mm of monthly rainfall

On average 97 mm (3.8 inches) of rain normally falls in Castlebay during April with rain falling on 18 days of the month.

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Castlebay weather in May

The average maximum daytime temperature in Castlebay in May 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 7 hours of sunshine a day in Castlebay during May.

• 13
  13°C max day temperature
• 7
  7 hours of sunshine per day
• 16
  16 days with some rainfall
• 6
  6°C min night temperature
• 86
  86 mm of monthly rainfall

On average 86 mm (3.4 inches) of rain normally falls in Castlebay during May with rain falling on 16 days of the month.

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Castlebay weather in June

The average maximum daytime temperature in Castlebay in June 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 6 hours of sunshine a day in Castlebay during June.

• 15
  15°C max day temperature
• 6
  6 hours of sunshine per day
• 16
  16 days with some rainfall
• 8
  8°C min night temperature
• 99
  99 mm of monthly rainfall

On average 99 mm (3.9 inches) of rain normally falls in Castlebay during June with rain falling on 16 days of the month.

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Castlebay weather in July

The average maximum daytime temperature in Castlebay in July is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 5 hours of sunshine a day in Castlebay during July.

• 17
  17°C max day temperature
• 5
  5 hours of sunshine per day
• 17
  17 days with some rainfall
• 10
  10°C min night temperature
• 106
  106 mm of monthly rainfall

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

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Castlebay weather in August

The average maximum daytime temperature in Castlebay in August is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 5 hours of sunshine a day in Castlebay during August.

• 17
  17°C max day temperature
• 5
  5 hours of sunshine per day
• 20
  20 days with some rainfall
• 10
  10°C min night temperature
• 132
  132 mm of monthly rainfall

On average 132 mm (5.2 inches) of rain normally falls in Castlebay during August with rain falling on 20 days of the month.

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Castlebay weather in September

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

• 15
  15°C max day temperature
• 4
  4 hours of sunshine per day
• 20
  20 days with some rainfall
• 8
  8°C min night temperature
• 163
  163 mm of monthly rainfall

On average 163 mm (6.4 inches) of rain normally falls in Castlebay during September with rain falling on 20 days of the month.

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Castlebay weather in October

The average maximum daytime temperature in Castlebay 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 Castlebay during October.

• 12
  12°C max day temperature
• 3
  3 hours of sunshine per day
• 22
  22 days with some rainfall
• 6
  6°C min night temperature
• 182
  182 mm of monthly rainfall

On average 182 mm (7.2 inches) of rain normally falls in Castlebay during October with rain falling on 22 days of the month.

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Castlebay weather in November

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

• 9
  9°C max day temperature
• 2
  2 hours of sunshine per day
• 23
  23 days with some rainfall
• 4
  4°C min night temperature
• 190
  190 mm of monthly rainfall

On average 190 mm (7.5 inches) of rain normally falls in Castlebay during November with rain falling on 23 days of the month.

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Castlebay weather in December

The average maximum daytime temperature in Castlebay in December is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 1 hours of sunshine a day in Castlebay during December.

• 7
  7°C max day temperature
• 1
  1 hour of sunshine per day
• 24
  24 days with some rainfall
• 3
  3°C min night temperature
• 186
  186 mm of monthly rainfall

On average 186 mm (7.3 inches) of rain normally falls in Castlebay during December with rain falling on 24 days of the month.

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