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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a frosty winter month in Llantrisant, United Kingdom, with an average temperature varying between 2.8°C (37°F) and 6.8°C (44.2°F). January is the coldest month, exhibiting average temperatures of 6.8°C (44.2°F) at the peak and 2.8°C (37°F) at the base. Weather in January »
Weather in February
The last month of the winter, February, is another chilly month in Llantrisant, United Kingdom, with an average temperature fluctuating between 2.8°C (37°F) and 7.3°C (45.1°F). Llantrisant's average high-temperature in February is a still frosty 7.3°C (45.1°F), marking an insignificant difference from the 6.8°C (44.2°F) of January. Weather in February »
Weather in March
March, the first month of the spring in Llantrisant, is also a frosty month, with temperature in the range of an average high of 9.5°C (49.1°F) and an average low of 3.3°C (37.9°F). Llantrisant, United Kingdom, marks the onset of March with an average high-temperature of a still frosty 9.5°C (49.1°F), subtly divergent from February's 7.3°C (45.1°F). Weather in March »
Weather in April
April is a cool spring month in Llantrisant, United Kingdom, with temperature in the range of an average low of 5°C (41°F) and an average high of 12.1°C (53.8°F). The onset of April notes an average high-temperature of a fresh 12.1°C (53.8°F), subtly shifted from March's 9.5°C (49.1°F). Weather in April »
Weather in May
The last month of the spring, May, is a moderate month in Llantrisant, United Kingdom, with an average temperature ranging between min 7.3°C (45.1°F) and max 14.3°C (57.7°F). A minor adjustment in Llantrisant's average high-temperature is noted with the start of May, touching a refreshing 14.3°C (57.7°F) from April's 12.1°C (53.8°F). Weather in May »
Weather in June
June, the first month of the summer in Llantrisant, is a refreshing month, with an average temperature fluctuating between 17°C (62.6°F) and 10.2°C (50.4°F). Llantrisant marks the onset of June with an average high-temperature of a still refreshing 17°C (62.6°F), a subtle shift from May's 14.3°C (57.7°F). Weather in June »
Weather in July
July, the same as June, is another enjoyable summer month in Llantrisant, United Kingdom, with an average temperature fluctuating between 12.1°C (53.8°F) and 18.9°C (66°F). The warmest month is July, with an average high-temperature of 18.9°C (66°F) and an average low-temperature of 12.1°C (53.8°F). Weather in July »
Weather in August
August, the last month of the summer in Llantrisant, is another comfortable month, with an average temperature fluctuating between 12.3°C (54.1°F) and 18.5°C (65.3°F). Llantrisant measures an average high-temperature of a still enjoyable 18.5°C (65.3°F) in August, nearly consistent with the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Llantrisant, is still a comfortable month, with an average temperature ranging between max 16.7°C (62.1°F) and min 10.3°C (50.5°F). Stepping into September, Llantrisant records an average high-temperature of a still comfortable 16.7°C (62.1°F), almost consistent with August. Weather in September »
Weather in October
October, the same as September, in Llantrisant, United Kingdom, is another refreshing autumn month, with temperature in the range of an average high of 13.6°C (56.5°F) and an average low of 8.7°C (47.7°F). As October arrives, Llantrisant's weather displays a minor decrease in high-temperatures, transitioning from September's enjoyable 16.7°C (62.1°F) to a moderate 13.6°C (56.5°F). Weather in October »
Weather in November
November, the last month of the autumn in Llantrisant, is also a frosty month, with an average temperature fluctuating between 9.7°C (49.5°F) and 5.8°C (42.4°F). November signifies a minor drop in average high-temperature, transitioning from a mild 13.6°C (56.5°F) in October to a chilly 9.7°C (49.5°F). Weather in November »
Weather in December
December, the first month of the winter in Llantrisant, is also a frosty month, with an average temperature varying between 7.8°C (46°F) and 4.1°C (39.4°F). December's advent presents an average high-temperature of a still chilly 7.8°C (46°F), indicating a slight variation from the conditions of the previous month. 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
What is the coldest month in Llantrisant?
With average temperatures fluctuating between a high of 6.8°C (44.2°F) and a low of 2.8°C (37°F), January stands out as the coldest month.
What is the most humid month in Llantrisant?
The months with the highest humidity in Llantrisant, United Kingdom, are January, November and December, with an average relative humidity of 88%.
How many days does it rain in Llantrisant?
In Llantrisant, United Kingdom, during the entire year, the rain falls for 186.6 days and collects up to 567mm (22.32") of precipitation.
When does it snow in Llantrisant?
January through April, November and December are months with snowfall in Llantrisant, United Kingdom.
How many days does it snow in Llantrisant?
In Llantrisant, during the entire year, snow falls for 7.4 days and aggregates up to 66mm (2.6") of snow.
What are the months with the lowest UV index in Llantrisant?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Llantrisant, United Kingdom.
What is the snowiest month in Llantrisant?
February is the month with the most snowfall in Llantrisant, United Kingdom. Snow falls for 2.3 days and accumulates 24mm (0.94") of snow.
What are the least humid months in Llantrisant?
April and May, with an average relative humidity of 83%, are the least humid months in Llantrisant, United Kingdom.
When it does not snow in Llantrisant?
May through October are months without snowfall.
When is the highest UV index in Llantrisant?
May through September, with an average maximum UV index of 4, are months with the highest UV index.
When are the longest days in Llantrisant?
With an average of 16h and 36min of daylight, June has the longest days of the year.
What month is the hottest in Llantrisant?
The warmest period in Llantrisant, United Kingdom, is July, when temperatures fluctuate between an average high of 18.9°C (66°F) and a low of 12.1°C (53.8°F).
What month has the most sunshine in Llantrisant?
July has the most sunshine of the year, with an average of 8h of sunshine.
What is the driest month in Llantrisant?
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 31mm (1.22") of precipitation.
When is Daylight Saving Time (DST) in Llantrisant?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Llantrisant, 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.
What is the wettest month in Llantrisant?
The month with the most rainfall is November, when the rain falls for 18.8 days and typically aggregates up to 72mm (2.83") of precipitation.
What is the month with the least sunshine in Llantrisant?
With an average of 3.8h of sunshine, November has the least sunshine of the year.
What is the month with the shortest days in Llantrisant?
December has the shortest days of the year in Llantrisant, United Kingdom, with an average of 7h and 54min of daylight.
Average temperature
Llantrisant, 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 (6.8°C).
The month with the highest average low temperature is August (12.3°C).
The coldest months (with the lowest average low temperature) are January and February (2.8°C).
Average pressure
Llantrisant, United Kingdom
- Average pressure in January:
1013.9mbar - Average pressure in February:
1013.3mbar - Average pressure in March:
1015.3mbar - Average pressure in April:
1015.4mbar - Average pressure in May:
1016.6mbar - Average pressure in June:
1015.9mbar
- Average pressure in July:
1015.1mbar - Average pressure in August:
1014.5mbar - Average pressure in September:
1016.6mbar - Average pressure in October:
1014.5mbar - Average pressure in November:
1009.9mbar - Average pressure in December:
1013.8mbar
The months with the highest atmospheric pressure are May and September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).
Average wind speed
Llantrisant, United Kingdom
- Average wind speed in January:
19.7km/h - Average wind speed in February:
20.7km/h - Average wind speed in March:
18.4km/h - Average wind speed in April:
15km/h - Average wind speed in May:
14.7km/h - Average wind speed in June:
13.9km/h
- Average wind speed in July:
13.9km/h - Average wind speed in August:
14.9km/h - Average wind speed in September:
14.9km/h - Average wind speed in October:
16.8km/h - Average wind speed in November:
18.8km/h - Average wind speed in December:
20km/h
The windiest month (with the highest average wind speed) is February (20.7km/h).
The calmest months (with the lowest average wind speed) are June and July (13.9km/h).
Average humidity
Llantrisant, United Kingdom
The months with the highest relative humidity are January, November and December (88%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall
Llantrisant, United Kingdom
The wettest month (with the highest rainfall) is November (72mm).
The driest month (with the least rainfall) is September (31mm).
Average rainfall days
Llantrisant, United Kingdom
- Average rainfall days in January:
15.8 days - Average rainfall days in February:
13.3 days - Average rainfall days in March:
14.2 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
15.5 days - Average rainfall days in November:
18.8 days - Average rainfall days in December:
16.6 days
The month with the highest number of rainy days is November (18.8 days).
The month with the least rainy days is February (13.3 days).
Average snowfall
Llantrisant, United Kingdom
The month with the highest snowfall is February (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Llantrisant, United Kingdom
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
2.3 days - Average snowfall days in March:
0.9 days - Average snowfall days in April:
0.3 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:
0.4 days - Average snowfall days in December:
1.2 days
The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Llantrisant, United Kingdom
- Average daylight in January:
8h and 2min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 4min - Average daylight in June:
16h and 4min
- Average daylight in July:
16h and 1min - Average daylight in August:
14h and 4min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
8h and 5min - Average daylight in December:
7h and 5min
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 1min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 5min - Average sunshine in May:
7h and 5min - Average sunshine in June:
7h and 4min
- Average sunshine in July:
8h and 0min - Average sunshine in August:
7h and 2min - Average sunshine in September:
7h and 1min - Average sunshine in October:
4h and 2min - Average sunshine in November:
3h and 5min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 3h and 48min).
Average sunshine days
Llantrisant, United Kingdom
- Average sunshine days in January:
10.1 days - Average sunshine days in February:
10.1 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
10.6 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
10.8 days - Average sunshine days in September:
12.8 days - Average sunshine days in October:
11.4 days - Average sunshine days in November:
8.1 days - Average sunshine days in December:
9.8 days
The month with the most sunshine days is March (13.9 days).
The month with the least sunshine days is November (8.1 days).
Average UV index
Llantrisant, 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
Llantrisant, United Kingdom
The month with the most cloud cover is November (Cloud cover 62).
The months with the least cloud cover are April and May (Cloud cover 49).
Average visibility
Llantrisant, 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).
Llantrisant, United Kingdom
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