Cwm-y-Glo weather

The Cwm-y-Glo weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Cwm-y-Glo, Gwynedd, Wales in 2026/2027.

• Cwm-y-Glo weather averages
• Cwm-y-Glo weather by month
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Cwm-y-Glo weather averages

Check the Cwm-y-Glo 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 Cwm-y-Glo, Gwynedd, Wales.

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Cwm-y-Glo weather by month

Check the weather for Cwm-y-Glo, Gwynedd, Wales 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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Cwm-y-Glo weather in January

The average maximum daytime temperature in Cwm-y-Glo in January 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 Cwm-y-Glo during January.

• 7
  7°C max day temperature
• 1
  1 hour of sunshine per day
• 20
  20 days with some rainfall
• 3
  3°C min night temperature
• 128
  128 mm of monthly rainfall

On average 128 mm (5 inches) of rain normally falls in Cwm-y-Glo during January with rain falling on 20 days of the month.

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Cwm-y-Glo weather in February

The average maximum daytime temperature in Cwm-y-Glo in February 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 3 hours of sunshine a day in Cwm-y-Glo during February.

• 8
  8°C max day temperature
• 3
  3 hours of sunshine per day
• 17
  17 days with some rainfall
• 3
  3°C min night temperature
• 92
  92 mm of monthly rainfall

On average 92 mm (3.6 inches) of rain normally falls in Cwm-y-Glo during February with rain falling on 17 days of the month.

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Cwm-y-Glo weather in March

The average maximum daytime temperature in Cwm-y-Glo in March 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 Cwm-y-Glo during March.

• 9
  9°C max day temperature
• 3
  3 hours of sunshine per day
• 18
  18 days with some rainfall
• 4
  4°C min night temperature
• 105
  105 mm of monthly rainfall

On average 105 mm (4.1 inches) of rain normally falls in Cwm-y-Glo during March with rain falling on 18 days of the month.

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Cwm-y-Glo weather in April

The average maximum daytime temperature in Cwm-y-Glo in April is a cool 11°C (52°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 Cwm-y-Glo during April.

• 11
  11°C max day temperature
• 5
  5 hours of sunshine per day
• 15
  15 days with some rainfall
• 5
  5°C min night temperature
• 74
  74 mm of monthly rainfall

On average 74 mm (2.9 inches) of rain normally falls in Cwm-y-Glo during April with rain falling on 15 days of the month.

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Cwm-y-Glo weather in May

The average maximum daytime temperature in Cwm-y-Glo in May is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 6 hours of sunshine a day in Cwm-y-Glo during May.

• 15
  15°C max day temperature
• 6
  6 hours of sunshine per day
• 15
  15 days with some rainfall
• 7
  7°C min night temperature
• 68
  68 mm of monthly rainfall

On average 68 mm (2.7 inches) of rain normally falls in Cwm-y-Glo during May with rain falling on 15 days of the month.

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Cwm-y-Glo weather in June

The average maximum daytime temperature in Cwm-y-Glo in June 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 6 hours of sunshine a day in Cwm-y-Glo during June.

• 17
  17°C max day temperature
• 6
  6 hours of sunshine per day
• 14
  14 days with some rainfall
• 10
  10°C min night temperature
• 77
  77 mm of monthly rainfall

On average 77 mm (3 inches) of rain normally falls in Cwm-y-Glo during June with rain falling on 14 days of the month.

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Cwm-y-Glo weather in July

The average maximum daytime temperature in Cwm-y-Glo in July 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 Cwm-y-Glo during July.

• 19
  19°C max day temperature
• 6
  6 hours of sunshine per day
• 14
  14 days with some rainfall
• 12
  12°C min night temperature
• 77
  77 mm of monthly rainfall

On average 77 mm (3 inches) of rain normally falls in Cwm-y-Glo during July with rain falling on 14 days of the month.

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Cwm-y-Glo weather in August

The average maximum daytime temperature in Cwm-y-Glo in August 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 5 hours of sunshine a day in Cwm-y-Glo during August.

• 19
  19°C max day temperature
• 5
  5 hours of sunshine per day
• 16
  16 days with some rainfall
• 12
  12°C min night temperature
• 94
  94 mm of monthly rainfall

On average 94 mm (3.7 inches) of rain normally falls in Cwm-y-Glo during August with rain falling on 16 days of the month.

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Cwm-y-Glo weather in September

The average maximum daytime temperature in Cwm-y-Glo in September 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 Cwm-y-Glo during September.

• 17
  17°C max day temperature
• 4
  4 hours of sunshine per day
• 16
  16 days with some rainfall
• 10
  10°C min night temperature
• 112
  112 mm of monthly rainfall

On average 112 mm (4.4 inches) of rain normally falls in Cwm-y-Glo during September with rain falling on 16 days of the month.

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Cwm-y-Glo weather in October

The average maximum daytime temperature in Cwm-y-Glo in October 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 Cwm-y-Glo during October.

• 14
  14°C max day temperature
• 3
  3 hours of sunshine per day
• 19
  19 days with some rainfall
• 8
  8°C min night temperature
• 136
  136 mm of monthly rainfall

On average 136 mm (5.4 inches) of rain normally falls in Cwm-y-Glo during October with rain falling on 19 days of the month.

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Cwm-y-Glo weather in November

The average maximum daytime temperature in Cwm-y-Glo in November 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 2 hours of sunshine a day in Cwm-y-Glo during November.

• 10
  10°C max day temperature
• 2
  2 hours of sunshine per day
• 21
  21 days with some rainfall
• 5
  5°C min night temperature
• 151
  151 mm of monthly rainfall

On average 151 mm (5.9 inches) of rain normally falls in Cwm-y-Glo during November with rain falling on 21 days of the month.

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Cwm-y-Glo weather in December

The average maximum daytime temperature in Cwm-y-Glo in December is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 1 hours of sunshine a day in Cwm-y-Glo during December.

• 8
  8°C max day temperature
• 1
  1 hour of sunshine per day
• 21
  21 days with some rainfall
• 4
  4°C min night temperature
• 145
  145 mm of monthly rainfall

On average 145 mm (5.7 inches) of rain normally falls in Cwm-y-Glo during December with rain falling on 21 days of the month.

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