Cwmgwili weather

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

• Cwmgwili weather averages
• Cwmgwili weather by month
• Back to Carmarthenshire
• Back to Wales

Cwmgwili weather averages

Check the Cwmgwili 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 Cwmgwili, Carmarthenshire, Wales.

Back to top

Cwmgwili weather by month

Check the weather for Cwmgwili, Carmarthenshire, 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

Cwmgwili weather in January

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

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 20
  20 days with some rainfall
• 2
  2°C min night temperature
• 161
  161 mm of monthly rainfall

On average 161 mm (6.3 inches) of rain normally falls in Cwmgwili during January with rain falling on 20 days of the month.

Back to months

Cwmgwili weather in February

The average maximum daytime temperature in Cwmgwili 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 Cwmgwili during February.

• 8
  8°C max day temperature
• 3
  3 hours of sunshine per day
• 16
  16 days with some rainfall
• 2
  2°C min night temperature
• 112
  112 mm of monthly rainfall

On average 112 mm (4.4 inches) of rain normally falls in Cwmgwili during February with rain falling on 16 days of the month.

Back to months

Cwmgwili weather in March

The average maximum daytime temperature in Cwmgwili 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 Cwmgwili during March.

• 9
  9°C max day temperature
• 4
  4 hours of sunshine per day
• 17
  17 days with some rainfall
• 3
  3°C min night temperature
• 114
  114 mm of monthly rainfall

On average 114 mm (4.5 inches) of rain normally falls in Cwmgwili during March with rain falling on 17 days of the month.

Back to months

Cwmgwili weather in April

The average maximum daytime temperature in Cwmgwili 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 5 hours of sunshine a day in Cwmgwili during April.

• 12
  12°C max day temperature
• 5
  5 hours of sunshine per day
• 14
  14 days with some rainfall
• 4
  4°C min night temperature
• 84
  84 mm of monthly rainfall

On average 84 mm (3.3 inches) of rain normally falls in Cwmgwili during April with rain falling on 14 days of the month.

Back to months

Cwmgwili weather in May

The average maximum daytime temperature in Cwmgwili 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 Cwmgwili during May.

• 15
  15°C max day temperature
• 6
  6 hours of sunshine per day
• 13
  13 days with some rainfall
• 7
  7°C min night temperature
• 79
  79 mm of monthly rainfall

On average 79 mm (3.1 inches) of rain normally falls in Cwmgwili during May with rain falling on 13 days of the month.

Back to months

Cwmgwili weather in June

The average maximum daytime temperature in Cwmgwili 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 Cwmgwili 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
• 97
  97 mm of monthly rainfall

On average 97 mm (3.8 inches) of rain normally falls in Cwmgwili during June with rain falling on 14 days of the month.

Back to months

Cwmgwili weather in July

The average maximum daytime temperature in Cwmgwili in July is a comfortable 20°C (68°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 Cwmgwili during July.

• 20
  20°C max day temperature
• 6
  6 hours of sunshine per day
• 13
  13 days with some rainfall
• 12
  12°C min night temperature
• 86
  86 mm of monthly rainfall

On average 86 mm (3.4 inches) of rain normally falls in Cwmgwili during July with rain falling on 13 days of the month.

Back to months

Cwmgwili weather in August

The average maximum daytime temperature in Cwmgwili 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 Cwmgwili during August.

• 19
  19°C max day temperature
• 6
  6 hours of sunshine per day
• 15
  15 days with some rainfall
• 12
  12°C min night temperature
• 124
  124 mm of monthly rainfall

On average 124 mm (4.9 inches) of rain normally falls in Cwmgwili during August with rain falling on 15 days of the month.

Back to months

Cwmgwili weather in September

The average maximum daytime temperature in Cwmgwili 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 Cwmgwili 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
• 131
  131 mm of monthly rainfall

On average 131 mm (5.2 inches) of rain normally falls in Cwmgwili during September with rain falling on 16 days of the month.

Back to months

Cwmgwili weather in October

The average maximum daytime temperature in Cwmgwili 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 Cwmgwili 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
• 157
  157 mm of monthly rainfall

On average 157 mm (6.2 inches) of rain normally falls in Cwmgwili during October with rain falling on 19 days of the month.

Back to months

Cwmgwili weather in November

The average maximum daytime temperature in Cwmgwili in November is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 2 hours of sunshine a day in Cwmgwili during November.

• 10
  10°C max day temperature
• 2
  2 hours of sunshine per day
• 20
  20 days with some rainfall
• 4
  4°C min night temperature
• 167
  167 mm of monthly rainfall

On average 167 mm (6.6 inches) of rain normally falls in Cwmgwili during November with rain falling on 20 days of the month.

Back to months

Cwmgwili weather in December

The average maximum daytime temperature in Cwmgwili 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 Cwmgwili 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
• 169
  169 mm of monthly rainfall

On average 169 mm (6.7 inches) of rain normally falls in Cwmgwili during December with rain falling on 20 days of the month.

Back to months