Climate and monthly weather forecastLlandaff, United Kingdom
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Llandaff, United Kingdom, with an average temperature varying between 4.1°C (39.4°F) and 7.5°C (45.5°F). January, characterized by an average high temperature of 7.5°C (45.5°F) and a low temperature of 4.1°C (39.4°F), is generally the coldest month. Weather in January »Weather in February
February, the last month of the winter in Llandaff, is also a frosty month, with an average temperature ranging between max 7.8°C (46°F) and min 3.9°C (39°F). February's onset brings an average high-temperature of a still frosty 7.8°C (46°F), showing a minute difference from January's 7.5°C (45.5°F). Weather in February »Weather in March
The first month of the spring, March, is also a frosty month in Llandaff, United Kingdom, with an average temperature fluctuating between 9.8°C (49.6°F) and 4.4°C (39.9°F). The shift into March finds Llandaff at an average high-temperature of a still frosty 9.8°C (49.6°F), closely comparable to February's conditions. Weather in March »Weather in April
April is a cool spring month in Llandaff, United Kingdom, with temperature in the range of an average low of 5.9°C (42.6°F) and an average high of 12.3°C (54.1°F). Llandaff marks the arrival of April with an average high-temperature of a cool 12.3°C (54.1°F), hardly different from March's 9.8°C (49.6°F). Weather in April »Weather in May
May, the last month of the spring in Llandaff, is a mild month, with an average temperature ranging between max 14.7°C (58.5°F) and min 8.3°C (46.9°F). Llandaff experiences a subtle adjustment in high-temperatures to a refreshing 14.7°C (58.5°F) with the onset of May, maintaining near parity with April's 12.3°C (54.1°F). Weather in May »Weather in June
The first month of the summer, June, is a comfortable month in Llandaff, United Kingdom, with temperature in the range of an average low of 10.9°C (51.6°F) and an average high of 17.3°C (63.1°F). During June, the average high-temperature is a still refreshing 17.3°C (63.1°F), maintaining a close resemblance to that of the preceding month. Weather in June »Weather in July
July, the same as June, is another refreshing summer month in Llandaff, United Kingdom, with an average temperature fluctuating between 19°C (66.2°F) and 13°C (55.4°F). Llandaff, United Kingdom, witnesses the warmest weather in July, with temperatures averaging a high of 19°C (66.2°F) and a low of 13°C (55.4°F). Weather in July »Weather in August
August, the last month of the summer in Llandaff, is also an enjoyable month, with an average temperature fluctuating between 13.3°C (55.9°F) and 18.5°C (65.3°F). With the start of August, Llandaff measures an average high-temperature of a still refreshing 18.5°C (65.3°F), not significantly differing from July's 19°C (66.2°F). Weather in August »Weather in September
September, the first month of the autumn in Llandaff, is also an enjoyable month, with an average temperature fluctuating between 17.2°C (63°F) and 11.3°C (52.3°F). The onset of September notes an average high-temperature of a still comfortable 17.2°C (63°F), subtly shifted from August's 18.5°C (65.3°F). Weather in September »Weather in October
October, like September, is another mild autumn month in Llandaff, United Kingdom, with an average temperature fluctuating between 14.1°C (57.4°F) and 9.7°C (49.5°F). A modest decline in the average high-temperature is seen during October, decreasing from an enjoyable 17.2°C (63°F) in September to a moderate 14.1°C (57.4°F). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Llandaff, United Kingdom, with an average temperature varying between 10.4°C (50.7°F) and 6.9°C (44.4°F). Llandaff's weather in November involves a mild decrease in the average high-temperature, moving down slightly from October's moderate 14.1°C (57.4°F) to a cool 10.4°C (50.7°F). Weather in November »Weather in December
December, the first month of the winter in Llandaff, is also a frosty month, with temperature in the range of an average high of 8.6°C (47.5°F) and an average low of 5.2°C (41.4°F). As Llandaff welcomes December, the average high-temperature is noted at a chilly 8.6°C (47.5°F), closely aligning with the preceding month. Weather in December »Updated: Feb 9, 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
The month of January, characterized by an average high of 7.5°C (45.5°F) and a low of 4.1°C (39.4°F), is recognized as the coldest.
In Llandaff, during the entire year, the rain falls for 133.1 days and collects up to 254mm (10") of precipitation.
January, February, November and December are months with snowfall.
In Llandaff, during the entire year, snow falls for 3.1 days and aggregates up to 8mm (0.31") of snow.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Llandaff.
The month with the most snowfall is February, when snow falls for 1 days and typically aggregates up to 5mm (0.2") of snow.
In Llandaff, United Kingdom, snow does not fall in March through October.
The months with the lowest humidity are April and May, with an average relative humidity of 81%.
The month with the least rainfall in Llandaff is April, when the rain falls for 9.1 days and typically collects 12mm (0.47") of precipitation.
With an average of 8.2h of sunshine, May has the most sunshine of the year.
The months with the highest UV index in Llandaff, United Kingdom, are May through September, with an average maximum UV index of 4.
With an average of 16h and 36min of daylight, June has the longest days of the year.
The month of July sees the average highest temperatures in Llandaff, reaching 19°C (66.2°F) at the peak and 13°C (55.4°F) at the low.
The wettest months in Llandaff, United Kingdom, are August and November, with an average 31mm (1.22") of rainfall.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Llandaff, 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.
The months with the highest humidity are November and December, with an average relative humidity of 86%.
The month with the least sunshine is November, with an average of 3.8h of sunshine.
December has the shortest days of the year in Llandaff, with an average of 7h and 54min of daylight.
Average temperature
Llandaff, United Kingdom
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (7.5°C).
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure
Llandaff, 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:
1016mbar
- Average pressure in July:
1015.2mbar - Average pressure in August:
1014.7mbar - Average pressure in September:
1016.8mbar - Average pressure in October:
1014.6mbar - Average pressure in November:
1010mbar - Average pressure in December:
1014mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010mbar).
Average wind speed
Llandaff, United Kingdom
- Average wind speed in January:
21.6km/h - Average wind speed in February:
22.3km/h - Average wind speed in March:
19.9km/h - Average wind speed in April:
16.2km/h - Average wind speed in May:
15.9km/h - Average wind speed in June:
15.2km/h
- Average wind speed in July:
15.2km/h - Average wind speed in August:
16km/h - Average wind speed in September:
16.3km/h - Average wind speed in October:
18.6km/h - Average wind speed in November:
21km/h - Average wind speed in December:
22km/h
The windiest month (with the highest average wind speed) is February (22.3km/h).
The calmest months (with the lowest average wind speed) are June and July (15.2km/h).
Average humidity
Llandaff, United Kingdom
The months with the highest relative humidity are November and December (86%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall
Llandaff, United Kingdom
The wettest months (with the highest rainfall) are August and November (31mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days
Llandaff, United Kingdom
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
9.9 days - Average rainfall days in April:
9.1 days - Average rainfall days in May:
10.3 days - Average rainfall days in June:
10.7 days
- Average rainfall days in July:
12.1 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
10.9 days - Average rainfall days in November:
13.5 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is November (13.5 days).
The months with the least rainy days are February and April (9.1 days).
Average snowfall
Llandaff, United Kingdom
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days
Llandaff, United Kingdom
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
1 days - Average snowfall days in March:
0.3 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:
0.7 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Llandaff, 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 36min - 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 6min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 54min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 12min - Average sunshine in June:
7h and 48min
- Average sunshine in July:
8h and 6min - Average sunshine in August:
7h and 36min - Average sunshine in September:
7h and 12min - Average sunshine in October:
4h and 30min - Average sunshine in November:
3h and 48min - Average sunshine in December:
3h and 54min
The month with the most sunshine is May (Average sunshine: 8h and 12min).
The month with the least sunshine is November (Average sunshine: 3h and 48min).
Average sunshine days
Llandaff, United Kingdom
- Average sunshine days in January:
15.4 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
18.8 days - Average sunshine days in April:
19.2 days - Average sunshine days in May:
18.4 days - Average sunshine days in June:
16.3 days
- Average sunshine days in July:
15.4 days - Average sunshine days in August:
14.2 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
16 days - Average sunshine days in November:
13.7 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is April (19.2 days).
The month with the least sunshine days is November (13.7 days).
Average UV index
Llandaff, 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, March, November and December (UV index 2).
Average cloud cover
Llandaff, United Kingdom
The month with the most cloud cover is November (Cloud cover 61).
The months with the least cloud cover are April and May (Cloud cover 46).
Average visibility
Llandaff, United Kingdom
The months with the highest visibility are February, March and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October and November (9km).
