Nefyn weather

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

• Nefyn weather averages
• Nefyn weather by month
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Nefyn weather averages

Check the Nefyn 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 Nefyn, Gwynedd, Wales.

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Nefyn weather by month

Check the weather for Nefyn, 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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Nefyn weather in January

The average maximum daytime temperature in Nefyn in January 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 Nefyn during January.

• 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
• 199
  199 mm of monthly rainfall

On average 199 mm (7.8 inches) of rain normally falls in Nefyn during January with rain falling on 21 days of the month.

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Nefyn weather in February

The average maximum daytime temperature in Nefyn in February 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 Nefyn during February.

• 8
  8°C max day temperature
• 3
  3 hours of sunshine per day
• 17
  17 days with some rainfall
• 2
  2°C min night temperature
• 144
  144 mm of monthly rainfall

On average 144 mm (5.7 inches) of rain normally falls in Nefyn during February with rain falling on 17 days of the month.

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Nefyn weather in March

The average maximum daytime temperature in Nefyn in March is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 4 hours of sunshine a day in Nefyn during March.

• 9
  9°C max day temperature
• 4
  4 hours of sunshine per day
• 18
  18 days with some rainfall
• 3
  3°C min night temperature
• 150
  150 mm of monthly rainfall

On average 150 mm (5.9 inches) of rain normally falls in Nefyn during March with rain falling on 18 days of the month.

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Nefyn weather in April

The average maximum daytime temperature in Nefyn in April is a cool 12°C (54°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 Nefyn during April.

• 12
  12°C max day temperature
• 6
  6 hours of sunshine per day
• 15
  15 days with some rainfall
• 4
  4°C min night temperature
• 102
  102 mm of monthly rainfall

On average 102 mm (4 inches) of rain normally falls in Nefyn during April with rain falling on 15 days of the month.

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Nefyn weather in May

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

• 15
  15°C max day temperature
• 7
  7 hours of sunshine per day
• 15
  15 days with some rainfall
• 7
  7°C min night temperature
• 95
  95 mm of monthly rainfall

On average 95 mm (3.7 inches) of rain normally falls in Nefyn during May with rain falling on 15 days of the month.

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Nefyn weather in June

The average maximum daytime temperature in Nefyn 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 7 hours of sunshine a day in Nefyn during June.

• 17
  17°C max day temperature
• 7
  7 hours of sunshine per day
• 14
  14 days with some rainfall
• 10
  10°C min night temperature
• 105
  105 mm of monthly rainfall

On average 105 mm (4.1 inches) of rain normally falls in Nefyn during June with rain falling on 14 days of the month.

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Nefyn weather in July

The average maximum daytime temperature in Nefyn 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 Nefyn during July.

• 19
  19°C max day temperature
• 6
  6 hours of sunshine per day
• 13
  13 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 Nefyn during July with rain falling on 13 days of the month.

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Nefyn weather in August

The average maximum daytime temperature in Nefyn 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 6 hours of sunshine a day in Nefyn during August.

• 19
  19°C max day temperature
• 6
  6 hours of sunshine per day
• 16
  16 days with some rainfall
• 12
  12°C min night temperature
• 127
  127 mm of monthly rainfall

On average 127 mm (5 inches) of rain normally falls in Nefyn during August with rain falling on 16 days of the month.

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Nefyn weather in September

The average maximum daytime temperature in Nefyn 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 Nefyn during September.

• 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
• 155
  155 mm of monthly rainfall

On average 155 mm (6.1 inches) of rain normally falls in Nefyn during September with rain falling on 17 days of the month.

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Nefyn weather in October

The average maximum daytime temperature in Nefyn 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 Nefyn 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
• 185
  185 mm of monthly rainfall

On average 185 mm (7.3 inches) of rain normally falls in Nefyn during October with rain falling on 19 days of the month.

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Nefyn weather in November

The average maximum daytime temperature in Nefyn 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 Nefyn during November.

• 10
  10°C max day temperature
• 2
  2 hours of sunshine per day
• 20
  20 days with some rainfall
• 5
  5°C min night temperature
• 191
  191 mm of monthly rainfall

On average 191 mm (7.5 inches) of rain normally falls in Nefyn during November with rain falling on 20 days of the month.

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Nefyn weather in December

The average maximum daytime temperature in Nefyn in December 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 Nefyn during December.

• 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
• 213
  213 mm of monthly rainfall

On average 213 mm (8.4 inches) of rain normally falls in Nefyn during December with rain falling on 20 days of the month.

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