Saint Mary's weather

The Saint Mary's weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Saint Mary's, Orkney Islands, Scotland in 2026/2027.

• Saint Mary's weather averages
• Saint Mary's weather by month
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Saint Mary's weather averages

Check the Saint Mary's 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 Saint Mary's, Orkney Islands, Scotland.

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Saint Mary's weather by month

Check the weather for Saint Mary's, Orkney Islands, 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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Saint Mary's weather in January

The average maximum daytime temperature in Saint Mary's 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 Saint Mary's during January.

• 6
  6°C max day temperature
• 1
  1 hour of sunshine per day
• 23
  23 days with some rainfall
• 1
  1°C min night temperature
• 125
  125 mm of monthly rainfall

On average 125 mm (4.9 inches) of rain normally falls in Saint Mary's during January with rain falling on 23 days of the month.

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Saint Mary's weather in February

The average maximum daytime temperature in Saint Mary's 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 Saint Mary's during February.

• 6
  6°C max day temperature
• 2
  2 hours of sunshine per day
• 19
  19 days with some rainfall
• 1
  1°C min night temperature
• 92
  92 mm of monthly rainfall

On average 92 mm (3.6 inches) of rain normally falls in Saint Mary's during February with rain falling on 19 days of the month.

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Saint Mary's weather in March

The average maximum daytime temperature in Saint Mary's 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 Saint Mary's during March.

• 8
  8°C max day temperature
• 3
  3 hours of sunshine per day
• 21
  21 days with some rainfall
• 2
  2°C min night temperature
• 109
  109 mm of monthly rainfall

On average 109 mm (4.3 inches) of rain normally falls in Saint Mary's during March with rain falling on 21 days of the month.

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Saint Mary's weather in April

The average maximum daytime temperature in Saint Mary's in April is a cool 10°C (50°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 Saint Mary's during April.

• 10
  10°C max day temperature
• 5
  5 hours of sunshine per day
• 18
  18 days with some rainfall
• 3
  3°C min night temperature
• 65
  65 mm of monthly rainfall

On average 65 mm (2.6 inches) of rain normally falls in Saint Mary's during April with rain falling on 18 days of the month.

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Saint Mary's weather in May

The average maximum daytime temperature in Saint Mary's in May is a cool 12°C (54°F), while the average minimum night-time temperature is a cold 5°C (41°F). You can expect on average 5 hours of sunshine a day in Saint Mary's during May.

• 12
  12°C max day temperature
• 5
  5 hours of sunshine per day
• 15
  15 days with some rainfall
• 5
  5°C min night temperature
• 63
  63 mm of monthly rainfall

On average 63 mm (2.5 inches) of rain normally falls in Saint Mary's during May with rain falling on 15 days of the month.

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Saint Mary's weather in June

The average maximum daytime temperature in Saint Mary's 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 5 hours of sunshine a day in Saint Mary's during June.

• 15
  15°C max day temperature
• 5
  5 hours of sunshine per day
• 16
  16 days with some rainfall
• 8
  8°C min night temperature
• 65
  65 mm of monthly rainfall

On average 65 mm (2.6 inches) of rain normally falls in Saint Mary's during June with rain falling on 16 days of the month.

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Saint Mary's weather in July

The average maximum daytime temperature in Saint Mary's in July is a comfortable 16°C (61°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 4 hours of sunshine a day in Saint Mary's during July.

• 16
  16°C max day temperature
• 4
  4 hours of sunshine per day
• 17
  17 days with some rainfall
• 10
  10°C min night temperature
• 72
  72 mm of monthly rainfall

On average 72 mm (2.8 inches) of rain normally falls in Saint Mary's during July with rain falling on 17 days of the month.

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Saint Mary's weather in August

The average maximum daytime temperature in Saint Mary's 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 4 hours of sunshine a day in Saint Mary's during August.

• 17
  17°C max day temperature
• 4
  4 hours of sunshine per day
• 17
  17 days with some rainfall
• 10
  10°C min night temperature
• 80
  80 mm of monthly rainfall

On average 80 mm (3.1 inches) of rain normally falls in Saint Mary's during August with rain falling on 17 days of the month.

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Saint Mary's weather in September

The average maximum daytime temperature in Saint Mary's in September is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 3 hours of sunshine a day in Saint Mary's during September.

• 14
  14°C max day temperature
• 3
  3 hours of sunshine per day
• 20
  20 days with some rainfall
• 8
  8°C min night temperature
• 111
  111 mm of monthly rainfall

On average 111 mm (4.4 inches) of rain normally falls in Saint Mary's during September with rain falling on 20 days of the month.

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Saint Mary's weather in October

The average maximum daytime temperature in Saint Mary's 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 2 hours of sunshine a day in Saint Mary's during October.

• 12
  12°C max day temperature
• 2
  2 hours of sunshine per day
• 22
  22 days with some rainfall
• 6
  6°C min night temperature
• 127
  127 mm of monthly rainfall

On average 127 mm (5 inches) of rain normally falls in Saint Mary's during October with rain falling on 22 days of the month.

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Saint Mary's weather in November

The average maximum daytime temperature in Saint Mary's 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 1 hours of sunshine a day in Saint Mary's during November.

• 8
  8°C max day temperature
• 1
  1 hour of sunshine per day
• 22
  22 days with some rainfall
• 3
  3°C min night temperature
• 134
  134 mm of monthly rainfall

On average 134 mm (5.3 inches) of rain normally falls in Saint Mary's during November with rain falling on 22 days of the month.

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Saint Mary's weather in December

The average maximum daytime temperature in Saint Mary's in December 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 Saint Mary's during December.

• 7
  7°C max day temperature
• 1
  1 hour of sunshine per day
• 22
  22 days with some rainfall
• 2
  2°C min night temperature
• 117
  117 mm of monthly rainfall

On average 117 mm (4.6 inches) of rain normally falls in Saint Mary's during December with rain falling on 22 days of the month.

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