Nantyderry weather
The Nantyderry weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Nantyderry, Monmouthshire, Wales in 2026/2027.
Nantyderry weather averages
Check the Nantyderry 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 Nantyderry, Monmouthshire, Wales.
Nantyderry weather by month
Check the weather for Nantyderry, Monmouthshire, 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.
Nantyderry weather in January
The average maximum daytime temperature in Nantyderry in January 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 2 hours of sunshine a day in Nantyderry during January.
- 7°C max day temperature
7 - 2 hours of sunshine per day
2 - 19 days with some rainfall
19 - 1°C min night temperature
1 - 108 mm of monthly rainfall
108
On average 108 mm (4.3 inches) of rain normally falls in Nantyderry during January with rain falling on 19 days of the month.
Nantyderry weather in February
The average maximum daytime temperature in Nantyderry in February 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 2 hours of sunshine a day in Nantyderry during February.
- 7°C max day temperature7
- 2 hours of sunshine per day2
- 15 days with some rainfall
15 - 1°C min night temperature1
- 85 mm of monthly rainfall
85
On average 85 mm (3.3 inches) of rain normally falls in Nantyderry during February with rain falling on 15 days of the month.
Nantyderry weather in March
The average maximum daytime temperature in Nantyderry 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 3 hours of sunshine a day in Nantyderry during March.
- 10°C max day temperature
10 - 3 hours of sunshine per day
3 - 17 days with some rainfall
17 - 3°C min night temperature3
- 79 mm of monthly rainfall
79
On average 79 mm (3.1 inches) of rain normally falls in Nantyderry during March with rain falling on 17 days of the month.
Nantyderry weather in April
The average maximum daytime temperature in Nantyderry 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 Nantyderry during April.
- 12°C max day temperature
12 - 5 hours of sunshine per day
5 - 15 days with some rainfall15
- 4°C min night temperature4
- 63 mm of monthly rainfall63
On average 63 mm (2.5 inches) of rain normally falls in Nantyderry during April with rain falling on 15 days of the month.
Nantyderry weather in May
The average maximum daytime temperature in Nantyderry 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 Nantyderry during May.
- 16°C max day temperature
16 - 6 hours of sunshine per day
6 - 14 days with some rainfall14
- 7°C min night temperature7
- 63 mm of monthly rainfall63
On average 63 mm (2.5 inches) of rain normally falls in Nantyderry during May with rain falling on 14 days of the month.
Nantyderry weather in June
The average maximum daytime temperature in Nantyderry in June is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 6 hours of sunshine a day in Nantyderry during June.
- 19°C max day temperature
19 - 6 hours of sunshine per day6
- 13 days with some rainfall13
- 9°C min night temperature9
- 63 mm of monthly rainfall63
On average 63 mm (2.5 inches) of rain normally falls in Nantyderry during June with rain falling on 13 days of the month.
Nantyderry weather in July
The average maximum daytime temperature in Nantyderry 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 Nantyderry during July.
- 21°C max day temperature21
- 6 hours of sunshine per day6
- 13 days with some rainfall13
- 12°C min night temperature12
- 54 mm of monthly rainfall
54
On average 54 mm (2.1 inches) of rain normally falls in Nantyderry during July with rain falling on 13 days of the month.
Nantyderry weather in August
The average maximum daytime temperature in Nantyderry 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 Nantyderry during August.
- 21°C max day temperature21
- 6 hours of sunshine per day6
- 14 days with some rainfall14
- 12°C min night temperature12
- 72 mm of monthly rainfall72
On average 72 mm (2.8 inches) of rain normally falls in Nantyderry during August with rain falling on 14 days of the month.
Nantyderry weather in September
The average maximum daytime temperature in Nantyderry in September is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 4 hours of sunshine a day in Nantyderry during September.
- 18°C max day temperature18
- 4 hours of sunshine per day
4 - 14 days with some rainfall14
- 9°C min night temperature9
- 81 mm of monthly rainfall81
On average 81 mm (3.2 inches) of rain normally falls in Nantyderry during September with rain falling on 14 days of the month.
Nantyderry weather in October
The average maximum daytime temperature in Nantyderry in October is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 3 hours of sunshine a day in Nantyderry during October.
- 14°C max day temperature14
- 3 hours of sunshine per day3
- 17 days with some rainfall17
- 7°C min night temperature7
- 92 mm of monthly rainfall92
On average 92 mm (3.6 inches) of rain normally falls in Nantyderry during October with rain falling on 17 days of the month.
Nantyderry weather in November
The average maximum daytime temperature in Nantyderry 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 Nantyderry during November.
- 10°C max day temperature10
- 2 hours of sunshine per day2
- 18 days with some rainfall18
- 4°C min night temperature4
- 91 mm of monthly rainfall91
On average 91 mm (3.6 inches) of rain normally falls in Nantyderry during November with rain falling on 18 days of the month.
Nantyderry weather in December
The average maximum daytime temperature in Nantyderry in December 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 1 hours of sunshine a day in Nantyderry during December.
- 7°C max day temperature7
- 1 hour of sunshine per day
1 - 18 days with some rainfall18
- 2°C min night temperature2
- 106 mm of monthly rainfall106
On average 106 mm (4.2 inches) of rain normally falls in Nantyderry during December with rain falling on 18 days of the month.