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August Weather in Llantrisant, United Kingdom

Last updated: August 27, 2025

In August, the average temperature in Llantrisant, United Kingdom is a pleasant 17°C (62°F), with temperatures ranging from a cool 9°C (48°F) to a warm 29°C (84°F). Expect 97 mm (3.8 in) of precipitation over approximately 13 days, resulting in an average humidity of 73%.

August Temperature in Llantrisant

In August in Llantrisant, the average temperature is 17°C (62°F), with maximums reaching up to 29°C (84°F) and minimums dropping as low as 9°C (48°F). This mild climate makes Llantrisant an ideal destination for travelers seeking comfortable weather during this time of year.

August Weather in Llantrisant: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Llantrisant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Llantrisant, August typically has an average temperature of 17°C (62°F), with highs reaching up to 29°C (84°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec424345485460636258534745
Data source: Temperature data for Llantrisant generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Llantrisant

In Llantrisant in August, the precipitation amount is 97 mm (3.8 in) over the course of 13 days.

August Precipitation Trends in Llantrisant

The chart displays monthly precipitation patterns in Llantrisant, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Llantrisant, August typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec751019857798485978113599130
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Llantrisant

In Llantrisant in August, humidity is 73%. With an average temperature of 17°C (62°F), this humidity feels like a warm blanket enveloping you, making it quite uncomfortable for traveling as it can leave you feeling sticky and exhausted quickly.

August Average Humidity in Llantrisant

This chart illustrates the average monthly humidity levels in Llantrisant, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Llantrisant is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Llantrisant

In Llantrisant in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Llantrisant.

Maximum UV Index Levels in Llantrisant for August

The chart shows the monthly maximum UV Index (UVI) for Llantrisant in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Llantrisant typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Llantrisant August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Llantrisant Compares to Other Months

Weather in Llantrisant varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Llantrisant, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Llantrisant, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)75 mm (3.0 inches)88%low
February Weather6°C (44°F)101 mm (4.0 inches)88%low
March Weather7°C (45°F)97 mm (3.8 inches)86%moderate
April Weather9°C (49°F)57 mm (2.2 inches)84%high
May Weather12°C (54°F)79 mm (3.1 inches)80%high
June Weather15°C (60°F)84 mm (3.3 inches)80%very high
July Weather17°C (63°F)85 mm (3.3 inches)70%very high
August Weather17°C (62°F)97 mm (3.8 inches)73%high
September Weather15°C (59°F)81 mm (3.2 inches)79%high
October Weather12°C (54°F)135 mm (5.3 inches)89%moderate
November Weather9°C (48°F)99 mm (3.9 inches)90%low
December Weather7°C (45°F)130 mm (5.1 inches)89%low

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