Llandderfel weather

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

• Llandderfel weather averages
• Llandderfel weather by month
• Back to Gwynedd
• Back to Wales

Llandderfel weather averages

Check the Llandderfel 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 Llandderfel, Gwynedd, Wales.

Back to top

Llandderfel weather by month

Check the weather for Llandderfel, 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

Back to top

Llandderfel weather in January

The average maximum daytime temperature in Llandderfel in January is a cold 5°C (41°F), while the average minimum night-time temperature is a cold 0°C (32°F). You can expect on average 1 hours of sunshine a day in Llandderfel during January.

• 5
  5°C max day temperature
• 1
  1 hour of sunshine per day
• 21
  21 days with some rainfall
• 0
  0°C min night temperature
• 230
  230 mm of monthly rainfall

On average 230 mm (9.1 inches) of rain normally falls in Llandderfel during January with rain falling on 21 days of the month.

Back to months

Llandderfel weather in February

The average maximum daytime temperature in Llandderfel in February is a cold 6°C (43°F), while the average minimum night-time temperature is a cold 0°C (32°F). You can expect on average 2 hours of sunshine a day in Llandderfel during February.

• 6
  6°C max day temperature
• 2
  2 hours of sunshine per day
• 18
  18 days with some rainfall
• 0
  0°C min night temperature
• 174
  174 mm of monthly rainfall

On average 174 mm (6.9 inches) of rain normally falls in Llandderfel during February with rain falling on 18 days of the month.

Back to months

Llandderfel weather in March

The average maximum daytime temperature in Llandderfel in March is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 3 hours of sunshine a day in Llandderfel during March.

• 7
  7°C max day temperature
• 3
  3 hours of sunshine per day
• 19
  19 days with some rainfall
• 1
  1°C min night temperature
• 178
  178 mm of monthly rainfall

On average 178 mm (7 inches) of rain normally falls in Llandderfel during March with rain falling on 19 days of the month.

Back to months

Llandderfel weather in April

The average maximum daytime temperature in Llandderfel in April is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 5 hours of sunshine a day in Llandderfel during April.

• 10
  10°C max day temperature
• 5
  5 hours of sunshine per day
• 16
  16 days with some rainfall
• 2
  2°C min night temperature
• 119
  119 mm of monthly rainfall

On average 119 mm (4.7 inches) of rain normally falls in Llandderfel during April with rain falling on 16 days of the month.

Back to months

Llandderfel weather in May

The average maximum daytime temperature in Llandderfel in May is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cold 5°C (41°F). You can expect on average 6 hours of sunshine a day in Llandderfel during May.

• 14
  14°C max day temperature
• 6
  6 hours of sunshine per day
• 15
  15 days with some rainfall
• 5
  5°C min night temperature
• 104
  104 mm of monthly rainfall

On average 104 mm (4.1 inches) of rain normally falls in Llandderfel during May with rain falling on 15 days of the month.

Back to months

Llandderfel weather in June

The average maximum daytime temperature in Llandderfel in June is a comfortable 16°C (61°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 Llandderfel during June.

• 16
  16°C max day temperature
• 6
  6 hours of sunshine per day
• 15
  15 days with some rainfall
• 7
  7°C min night temperature
• 108
  108 mm of monthly rainfall

On average 108 mm (4.3 inches) of rain normally falls in Llandderfel during June with rain falling on 15 days of the month.

Back to months

Llandderfel weather in July

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

• 18
  18°C max day temperature
• 5
  5 hours of sunshine per day
• 15
  15 days with some rainfall
• 10
  10°C min night temperature
• 101
  101 mm of monthly rainfall

On average 101 mm (4 inches) of rain normally falls in Llandderfel during July with rain falling on 15 days of the month.

Back to months

Llandderfel weather in August

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

• 18
  18°C max day temperature
• 5
  5 hours of sunshine per day
• 17
  17 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 Llandderfel during August with rain falling on 17 days of the month.

Back to months

Llandderfel weather in September

The average maximum daytime temperature in Llandderfel 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 Llandderfel during September.

• 15
  15°C max day temperature
• 4
  4 hours of sunshine per day
• 17
  17 days with some rainfall
• 8
  8°C min night temperature
• 176
  176 mm of monthly rainfall

On average 176 mm (6.9 inches) of rain normally falls in Llandderfel during September with rain falling on 17 days of the month.

Back to months

Llandderfel weather in October

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

• 12
  12°C max day temperature
• 3
  3 hours of sunshine per day
• 19
  19 days with some rainfall
• 5
  5°C min night temperature
• 205
  205 mm of monthly rainfall

On average 205 mm (8.1 inches) of rain normally falls in Llandderfel during October with rain falling on 19 days of the month.

Back to months

Llandderfel weather in November

The average maximum daytime temperature in Llandderfel 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 Llandderfel during November.

• 8
  8°C max day temperature
• 2
  2 hours of sunshine per day
• 21
  21 days with some rainfall
• 3
  3°C min night temperature
• 233
  233 mm of monthly rainfall

On average 233 mm (9.2 inches) of rain normally falls in Llandderfel during November with rain falling on 21 days of the month.

Back to months

Llandderfel weather in December

The average maximum daytime temperature in Llandderfel 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 Llandderfel during December.

• 6
  6°C max day temperature
• 1
  1 hour of sunshine per day
• 22
  22 days with some rainfall
• 1
  1°C min night temperature
• 243
  243 mm of monthly rainfall

On average 243 mm (9.6 inches) of rain normally falls in Llandderfel during December with rain falling on 22 days of the month.

Back to months