Llandaff weather
The Llandaff weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Llandaff, Cardiff Area, Wales in 2026/2027.
Llandaff weather averages
Check the Llandaff 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 Llandaff, Cardiff Area, Wales.
Llandaff weather by month
Check the weather for Llandaff, Cardiff Area, 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.
Llandaff weather in January
The average maximum daytime temperature in Llandaff in January 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 2 hours of sunshine a day in Llandaff during January.
- 8°C max day temperature
8 - 2 hours of sunshine per day
2 - 19 days with some rainfall
19 - 2°C min night temperature
2 - 105 mm of monthly rainfall
105
On average 105 mm (4.1 inches) of rain normally falls in Llandaff during January with rain falling on 19 days of the month.
Llandaff weather in February
The average maximum daytime temperature in Llandaff 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 Llandaff during February.
- 8°C max day temperature8
- 3 hours of sunshine per day
3 - 15 days with some rainfall
15 - 2°C min night temperature2
- 79 mm of monthly rainfall
79
On average 79 mm (3.1 inches) of rain normally falls in Llandaff during February with rain falling on 15 days of the month.
Llandaff weather in March
The average maximum daytime temperature in Llandaff in March is a cool 10°C (50°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 Llandaff during March.
- 10°C max day temperature10
- 4 hours of sunshine per day
4 - 17 days with some rainfall
17 - 3°C min night temperature3
- 76 mm of monthly rainfall76
On average 76 mm (3 inches) of rain normally falls in Llandaff during March with rain falling on 17 days of the month.
Llandaff weather in April
The average maximum daytime temperature in Llandaff 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 Llandaff during April.
- 12°C max day temperature
12 - 5 hours of sunshine per day
5 - 14 days with some rainfall14
- 4°C min night temperature
4 - 60 mm of monthly rainfall
60
On average 60 mm (2.4 inches) of rain normally falls in Llandaff during April with rain falling on 14 days of the month.
Llandaff weather in May
The average maximum daytime temperature in Llandaff in May 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 Llandaff during May.
- 16°C max day temperature
16 - 6 hours of sunshine per day
6 - 13 days with some rainfall13
- 7°C min night temperature7
- 61 mm of monthly rainfall61
On average 61 mm (2.4 inches) of rain normally falls in Llandaff during May with rain falling on 13 days of the month.
Llandaff weather in June
The average maximum daytime temperature in Llandaff in June 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 7 hours of sunshine a day in Llandaff during June.
- 18°C max day temperature
18 - 7 hours of sunshine per day
7 - 13 days with some rainfall13
- 10°C min night temperature10
- 61 mm of monthly rainfall61
On average 61 mm (2.4 inches) of rain normally falls in Llandaff during June with rain falling on 13 days of the month.
Llandaff weather in July
The average maximum daytime temperature in Llandaff in July is a comfortable 21°C (70°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 Llandaff during July.
- 21°C max day temperature21
- 6 hours of sunshine per day6
- 12 days with some rainfall
12 - 12°C min night temperature12
- 54 mm of monthly rainfall54
On average 54 mm (2.1 inches) of rain normally falls in Llandaff during July with rain falling on 12 days of the month.
Llandaff weather in August
The average maximum daytime temperature in Llandaff in August is a comfortable 21°C (70°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 Llandaff during August.
- 21°C max day temperature21
- 6 hours of sunshine per day6
- 14 days with some rainfall14
- 12°C min night temperature12
- 77 mm of monthly rainfall77
On average 77 mm (3 inches) of rain normally falls in Llandaff during August with rain falling on 14 days of the month.
Llandaff weather in September
The average maximum daytime temperature in Llandaff in September 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 Llandaff during September.
- 18°C max day temperature18
- 5 hours of sunshine per day5
- 14 days with some rainfall14
- 10°C min night temperature10
- 82 mm of monthly rainfall
82
On average 82 mm (3.2 inches) of rain normally falls in Llandaff during September with rain falling on 14 days of the month.
Llandaff weather in October
The average maximum daytime temperature in Llandaff 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 Llandaff during October.
- 14°C max day temperature14
- 3 hours of sunshine per day3
- 17 days with some rainfall17
- 8°C min night temperature8
- 99 mm of monthly rainfall99
On average 99 mm (3.9 inches) of rain normally falls in Llandaff during October with rain falling on 17 days of the month.
Llandaff weather in November
The average maximum daytime temperature in Llandaff 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 Llandaff during November.
- 10°C max day temperature10
- 2 hours of sunshine per day2
- 18 days with some rainfall18
- 5°C min night temperature5
- 101 mm of monthly rainfall101
On average 101 mm (4 inches) of rain normally falls in Llandaff during November with rain falling on 18 days of the month.
Llandaff weather in December
The average maximum daytime temperature in Llandaff 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 Llandaff during December.
- 8°C max day temperature8
- 2 hours of sunshine per day2
- 19 days with some rainfall19
- 3°C min night temperature3
- 110 mm of monthly rainfall110
On average 110 mm (4.3 inches) of rain normally falls in Llandaff during December with rain falling on 19 days of the month.