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August Weather in Trefriw, United Kingdom

Last updated: August 27, 2025

In Trefriw, United Kingdom, the average temperature in August is a pleasant 16°C (60°F), with minimums dropping to 7°C (45°F) and highs reaching up to 27°C (82°F). You'll experience a fair bit of rain, with 96 mm (3.8 in) of precipitation spread across 18 days, contributing to an average humidity of 79%. Be prepared for a mix of refreshing showers and mild temperatures!

August Temperature in Trefriw

In August in Trefriw, the average temperature is 16°C (60°F). Maximum temperatures can reach 27°C (82°F), while minimums can drop as low as 7°C (45°F). This pleasant weather makes it an ideal time for outdoor activities and exploring the local attractions.

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

The chart illustrates August temperature patterns in Trefriw, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trefriw, August typically has an average temperature of 16°C (60°F), with highs reaching up to 27°C (82°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344485358616057524643
Data source: Temperature data for Trefriw 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 Trefriw

In Trefriw in August, the precipitation amount is 96 mm (3.8 in), occurring over a span of 18 days.

August Precipitation Trends in Trefriw

The chart displays monthly precipitation patterns in Trefriw, 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 Trefriw, August typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec71929656719992969610791115
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Trefriw

In Trefriw in August humidity is 79%. With an average temperature of 16°C (60°F), this humidity feels like a warm, damp blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent breaks to stay cool and refreshed while traveling.

August Average Humidity in Trefriw

This chart illustrates the average monthly humidity levels in Trefriw, 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 Trefriw is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Trefriw

In Trefriw 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 Trefriw.

Maximum UV Index Levels in Trefriw for August

The chart shows the monthly maximum UV Index (UVI) for Trefriw 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 Trefriw typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Trefriw 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 Trefriw Compares to Other Months

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

This table compares monthly weather conditions in Trefriw, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)71 mm (2.8 inches)89%low
February Weather6°C (43°F)92 mm (3.6 inches)88%low
March Weather7°C (44°F)96 mm (3.8 inches)86%moderate
April Weather9°C (48°F)56 mm (2.2 inches)84%moderate
May Weather12°C (53°F)71 mm (2.8 inches)79%high
June Weather15°C (59°F)99 mm (3.9 inches)81%very high
July Weather16°C (61°F)92 mm (3.6 inches)78%very high
August Weather16°C (60°F)96 mm (3.8 inches)79%high
September Weather14°C (57°F)96 mm (3.8 inches)85%moderate
October Weather11°C (52°F)107 mm (4.2 inches)90%moderate
November Weather8°C (47°F)91 mm (3.6 inches)91%low
December Weather6°C (44°F)115 mm (4.5 inches)89%low

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