Gwalchmai weather

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

• Gwalchmai weather averages
• Gwalchmai weather by month
• Back to Anglesey
• Back to Wales

Gwalchmai weather averages

Check the Gwalchmai 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 Gwalchmai, Anglesey, Wales.

Back to top

Gwalchmai weather by month

Check the weather for Gwalchmai, Anglesey, 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

Gwalchmai weather in January

The average maximum daytime temperature in Gwalchmai 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 2 hours of sunshine a day in Gwalchmai during January.

• 7
  7°C max day temperature
• 2
  2 hours 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 Gwalchmai during January with rain falling on 20 days of the month.

Back to months

Gwalchmai weather in February

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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 Gwalchmai during February with rain falling on 17 days of the month.

Back to months

Gwalchmai weather in March

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

• 9
  9°C max day temperature
• 4
  4 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 Gwalchmai during March with rain falling on 18 days of the month.

Back to months

Gwalchmai weather in April

The average maximum daytime temperature in Gwalchmai 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 6 hours of sunshine a day in Gwalchmai during April.

• 11
  11°C max day temperature
• 6
  6 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 Gwalchmai during April with rain falling on 15 days of the month.

Back to months

Gwalchmai weather in May

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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
• 68
  68 mm of monthly rainfall

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

Back to months

Gwalchmai weather in June

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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
• 77
  77 mm of monthly rainfall

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

Back to months

Gwalchmai weather in July

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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 Gwalchmai during July with rain falling on 14 days of the month.

Back to months

Gwalchmai weather in August

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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
• 94
  94 mm of monthly rainfall

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

Back to months

Gwalchmai weather in September

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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 Gwalchmai during September with rain falling on 16 days of the month.

Back to months

Gwalchmai weather in October

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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 Gwalchmai during October with rain falling on 19 days of the month.

Back to months

Gwalchmai weather in November

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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 Gwalchmai during November with rain falling on 21 days of the month.

Back to months

Gwalchmai weather in December

The average maximum daytime temperature in Gwalchmai 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 Gwalchmai 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 Gwalchmai during December with rain falling on 21 days of the month.

Back to months