July Weather in Trefriw, United Kingdom

Last updated: August 27, 2025

In July, the average temperature in Trefriw, United Kingdom hovers around 16°C (61°F). Expect a minimum chill of 7°C (44°F), while the mercury can peak at a warm 29°C (85°F). Be prepared for 92 mm (3.6 in) of precipitation spread over 16 days and enjoy an average humidity level of 78%.

July Temperature in Trefriw

In July in Trefriw, the average temperature is 16°C (61°F), with maximums reaching 29°C (85°F) and minimums dropping as low as 7°C (44°F). This mild climate makes Trefriw an ideal destination for travelers looking to enjoy comfortable weather while exploring the area.

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

The chart illustrates July 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, July typically has an average temperature of 16°C (61°F), with highs reaching up to 29°C (85°F) and lows dropping to around 7°C (44°F).

Data source: Temperature data for Trefriw generated using information from the Copernicus Climate Change Service.

July Precipitation in Trefriw

In Trefriw in July, the total precipitation amount reaches 92 mm (3.6 in) spread over 16 days.

July Precipitation Trends in Trefriw

The chart displays monthly precipitation patterns in Trefriw, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Trefriw, July typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Trefriw

In Trefriw in July, humidity is 78%. With an average temperature of 16°C (61°F), this humidity feels like a warm, sticky embrace, making travel somewhat uncomfortable as it clings to your skin and creates a heavy atmosphere that can drain your energy.

July Average Humidity in Trefriw

This chart illustrates the average monthly humidity levels in Trefriw, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Trefriw is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Trefriw

In Trefriw in July, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Trefriw.

Maximum UV Index Levels in Trefriw for July

The chart shows the monthly maximum UV Index (UVI) for Trefriw in July, 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 July, the maximum UV index in Trefriw typically reaches 8, which falls under the very high exposure category.

Data source: Trefriw July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	71 mm (2.8 inches)	89%	low
February Weather	6°C (43°F)	92 mm (3.6 inches)	88%	low
March Weather	7°C (44°F)	96 mm (3.8 inches)	86%	moderate
April Weather	9°C (48°F)	56 mm (2.2 inches)	84%	moderate
May Weather	12°C (53°F)	71 mm (2.8 inches)	79%	high
June Weather	15°C (59°F)	99 mm (3.9 inches)	81%	very high
July Weather	16°C (61°F)	92 mm (3.6 inches)	78%	very high
August Weather	16°C (60°F)	96 mm (3.8 inches)	79%	high
September Weather	14°C (57°F)	96 mm (3.8 inches)	85%	moderate
October Weather	11°C (52°F)	107 mm (4.2 inches)	90%	moderate
November Weather	8°C (47°F)	91 mm (3.6 inches)	91%	low
December Weather	6°C (44°F)	115 mm (4.5 inches)	89%	low