Climate and monthly weather forecastLlantarnam, United Kingdom
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Llantarnam, United Kingdom, with temperature in the range of an average low of 3.8°C (38.8°F) and an average high of 7.3°C (45.1°F). Llantarnam's temperature records reveal January as the coldest month, marked by average highs of 7.3°C (45.1°F) and lows of 3.8°C (38.8°F). Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Llantarnam, United Kingdom, with an average temperature fluctuating between 7.6°C (45.7°F) and 3.6°C (38.5°F). The beginning of February records an average high-temperature of a still chilly 7.6°C (45.7°F), almost echoing the conditions of the previous month. Weather in February »Weather in March
March, the first month of the spring in Llantarnam, is also a frosty month, with temperature in the range of an average low of 4.3°C (39.7°F) and an average high of 9.8°C (49.6°F). The arrival of March marks a slight shift to an average high-temperature of a still chilly 9.8°C (49.6°F) from February's 7.6°C (45.7°F). Weather in March »Weather in April
April is a fresh spring month in Llantarnam, United Kingdom, with an average temperature ranging between max 12.2°C (54°F) and min 5.8°C (42.4°F). With the transition into April, Llantarnam notes an average high-temperature of a fresh 12.2°C (54°F), closely resembling March. Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Llantarnam, United Kingdom, with temperature in the range of an average high of 14.5°C (58.1°F) and an average low of 8.3°C (46.9°F). As Llantarnam, United Kingdom, transitions from April to May, the average high-temperatures adjust to a moderate 14.5°C (58.1°F), nearly the same as the previous 12.2°C (54°F). Weather in May »Weather in June
The first month of the summer, June, is a refreshing month in Llantarnam, United Kingdom, with an average temperature ranging between min 10.9°C (51.6°F) and max 16.9°C (62.4°F). The arrival of June denotes a barely perceptible change in the average high-temperatures to a still refreshing 16.9°C (62.4°F) from May's 14.5°C (58.1°F). Weather in June »Weather in July
July, like June, in Llantarnam, United Kingdom, is another enjoyable summer month, with temperature in the range of an average high of 18.9°C (66°F) and an average low of 13°C (55.4°F). July registers as the month with the highest average temperatures, reaching 18.9°C (66°F) at its peak and 13°C (55.4°F) at the lowest. Weather in July »Weather in August
August, the last month of the summer in Llantarnam, is another comfortable month, with an average temperature fluctuating between 18.6°C (65.5°F) and 13.2°C (55.8°F). Llantarnam records a slight change with August's average high-temperatures adjusting to a still refreshing 18.6°C (65.5°F) from July's 18.9°C (66°F). Weather in August »Weather in September
The first month of the autumn, September, is still a comfortable month in Llantarnam, United Kingdom, with an average temperature varying between 17°C (62.6°F) and 11.2°C (52.2°F). The transition from August to September sees average high-temperatures adjusting to a still enjoyable 17°C (62.6°F), from a not significantly different 18.6°C (65.5°F). Weather in September »Weather in October
October, the same as September, in Llantarnam, United Kingdom, is another refreshing autumn month, with an average temperature fluctuating between 9.5°C (49.1°F) and 14°C (57.2°F). During the shift to October, Llantarnam records a mild decrease in average high-temperature, moving from a refreshing 17°C (62.6°F) in September to a mild 14°C (57.2°F). Weather in October »Weather in November
November, the last month of the autumn in Llantarnam, is also a fresh month, with temperature in the range of an average low of 6.8°C (44.2°F) and an average high of 10.4°C (50.7°F). November brings a slight decrease in the average high-temperature, shifting from a refreshing 14°C (57.2°F) in October to a fresh 10.4°C (50.7°F). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Llantarnam, United Kingdom, with an average temperature fluctuating between 8.4°C (47.1°F) and 4.8°C (40.6°F). Llantarnam records a slight change with December's average high-temperatures adjusting to a frosty 8.4°C (47.1°F) from November's 10.4°C (50.7°F). Weather in December »Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Llantarnam, United Kingdom, the lowest temperatures are generally noted in January, averaging a high of 7.3°C (45.1°F) and a low of 3.8°C (38.8°F).
January, November and December, with an average relative humidity of 86%, are most humid months in Llantarnam, United Kingdom.
In Llantarnam, United Kingdom, during the entire year, the rain falls for 184.4 days and collects up to 507mm (19.96") of precipitation.
Months with snowfall are January through March, November and December.
January is the month with the most snowfall in Llantarnam, United Kingdom. Snow falls for 1.6 days and accumulates 6mm (0.24") of snow.
Throughout the year, in Llantarnam, United Kingdom, there are 4.7 snowfall days, and 17mm (0.67") of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Llantarnam.
March through May, with an average relative humidity of 82%, are the least humid months.
The month with the least rainfall in Llantarnam, United Kingdom, is April, when the rain falls for 12.7 days and typically collects 27mm (1.06") of precipitation.
April through October are months without snowfall in Llantarnam, United Kingdom.
May through September, with an average maximum UV index of 4, are months with the highest UV index in Llantarnam, United Kingdom.
With an average of 16h and 36min of daylight, June has the longest days of the year.
Llantarnam's July weather, marked by an average high temperature of 18.9°C (66°F) and an average low temperature of 13°C (55.4°F), is the warmest in the year.
July has the most sunshine of the year in Llantarnam, United Kingdom, with an average of 8.2h of sunshine.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Llantarnam, United Kingdom, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
November is the month with the most rainfall. Rain falls for 18.8 days and accumulates 64mm (2.52") of precipitation.
The month with the least sunshine in Llantarnam, United Kingdom, is November, with an average of 4h of sunshine.
December has the shortest days of the year in Llantarnam, United Kingdom, with an average of 7h and 54min of daylight.
Average temperature
Llantarnam, United Kingdom
The warmest month (with the highest average high temperature) is July (18.9°C).
The month with the lowest average high temperature is January (7.3°C).
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average pressure
Llantarnam, United Kingdom
- Average pressure in January:
1014mbar - Average pressure in February:
1013.4mbar - Average pressure in March:
1015.3mbar - Average pressure in April:
1015.4mbar - Average pressure in May:
1016.7mbar - Average pressure in June:
1015.9mbar
- Average pressure in July:
1015.1mbar - Average pressure in August:
1014.6mbar - Average pressure in September:
1016.7mbar - Average pressure in October:
1014.6mbar - Average pressure in November:
1009.9mbar - Average pressure in December:
1014mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).
Average wind speed
Llantarnam, United Kingdom
- Average wind speed in January:
21.1km/h - Average wind speed in February:
22km/h - Average wind speed in March:
19.6km/h - Average wind speed in April:
15.9km/h - Average wind speed in May:
15.6km/h - Average wind speed in June:
14.9km/h
- Average wind speed in July:
14.9km/h - Average wind speed in August:
15.9km/h - Average wind speed in September:
16km/h - Average wind speed in October:
18.3km/h - Average wind speed in November:
20.5km/h - Average wind speed in December:
21.5km/h
The windiest month (with the highest average wind speed) is February (22km/h).
The calmest months (with the lowest average wind speed) are June and July (14.9km/h).
Average humidity
Llantarnam, United Kingdom
The months with the highest relative humidity are January, November and December (86%).
The months with the lowest relative humidity are March, April and May (82%).
Average rainfall
Llantarnam, United Kingdom
The wettest month (with the highest rainfall) is November (64mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days
Llantarnam, United Kingdom
- Average rainfall days in January:
16.2 days - Average rainfall days in February:
13.2 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
12.7 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
13.7 days - Average rainfall days in October:
15.6 days - Average rainfall days in November:
18.8 days - Average rainfall days in December:
16.8 days
The month with the highest number of rainy days is November (18.8 days).
The month with the least rainy days is April (12.7 days).
Average snowfall
Llantarnam, United Kingdom
The month with the highest snowfall is January (6mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Llantarnam, United Kingdom
- Average snowfall days in January:
1.6 days - Average snowfall days in February:
1.5 days - Average snowfall days in March:
0.5 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is January (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Llantarnam, United Kingdom
- Average daylight in January:
8h and 24min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 42min - Average daylight in June:
16h and 36min
- Average daylight in July:
16h and 6min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
8h and 54min - Average daylight in December:
7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 6min - Average sunshine in June:
7h and 48min
- Average sunshine in July:
8h and 12min - Average sunshine in August:
7h and 36min - Average sunshine in September:
7h and 18min - Average sunshine in October:
4h and 30min - Average sunshine in November:
4h and 0min - Average sunshine in December:
4h and 18min
The month with the most sunshine is July (Average sunshine: 8h and 12min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days
Llantarnam, United Kingdom
- Average sunshine days in January:
10.6 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
9.9 days - Average sunshine days in September:
12.5 days - Average sunshine days in October:
10.8 days - Average sunshine days in November:
8 days - Average sunshine days in December:
9.6 days
The month with the most sunshine days is April (14.7 days).
The month with the least sunshine days is November (8 days).
Average UV index
Llantarnam, United Kingdom
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Llantarnam, United Kingdom
The month with the most cloud cover is November (Cloud cover 60).
The months with the least cloud cover are April and May (Cloud cover 47).
Average visibility
Llantarnam, United Kingdom
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
