nomadseason

October Weather in Trefriw, United Kingdom

Last updated: August 27, 2025

In October, the average temperature in Trefriw, United Kingdom is a cool 11°C (52°F). During this time, temperatures can dip as low as -2°C (28°F) and rise to a pleasant 21°C (70°F). Be prepared for 107 mm (4.2 in) of precipitation over 17 days, and don't forget your umbrella, as the average humidity sits at a high 90%.

October Temperature in Trefriw

In October in Trefriw, the average temperature is 11°C (52°F). The maximum can reach 21°C (70°F), while the minimum can drop as low as -2°C (28°F). It's an ideal time to visit Trefriw if you enjoy mild weather and a mix of cool and warmer days.

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

The chart illustrates October 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, October typically has an average temperature of 11°C (52°F), with highs reaching up to 21°C (70°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344485358616057524643
Data source: Temperature data for Trefriw generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Trefriw

In Trefriw in October, the precipitation amount is 107 mm (4.2 in) and occurs over 17 days.

October Precipitation Trends in Trefriw

The chart displays monthly precipitation patterns in Trefriw, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Trefriw, October typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec71929656719992969610791115
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Trefriw

In Trefriw in October, humidity is 90%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket that clings to your skin, making travel uncomfortable and muggy.

October Average Humidity in Trefriw

This chart illustrates the average monthly humidity levels in Trefriw, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Trefriw is approximately 90%, 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 October generated using information from the Copernicus Climate Change Service.

October UV Index in Trefriw

In Trefriw in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Trefriw for better planning.

Maximum UV Index Levels in Trefriw for October

The chart shows the monthly maximum UV Index (UVI) for Trefriw in October, 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 October, the maximum UV index in Trefriw typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Trefriw October 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 October 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 October’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 October’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

Compare Trefriw's Climate with Cities Worldwide