January Weather in Trefflean, France

Last updated: August 23, 2025

In Trefflean, France, the average temperature in January hovers around 6°C (44°F), with a chilly minimum dropping to -6°C (21°F) and a maximum reaching 15°C (60°F). You can expect 47 mm (1.8 in) of precipitation spread over 9 days, contributing to an average humidity level of 82%. Prepare for a cool and damp atmosphere!

January Temperature in Trefflean

In January in Trefflean, the average temperature is 6°C (44°F). Maximums can reach 15°C (60°F), while minimums can drop as low as -6°C (21°F). Be prepared for cool weather and pack layers when traveling during this time.

January Weather in Trefflean: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Trefflean, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trefflean, January typically has an average temperature of 6°C (44°F), with highs reaching up to 15°C (60°F) and lows dropping to around -6°C (21°F).

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

January Precipitation in Trefflean

In Trefflean in January, the total precipitation amount is 47 mm (1.8 in), which falls over the course of 9 days.

January Precipitation Trends in Trefflean

The chart displays monthly precipitation patterns in Trefflean, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Trefflean, January typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Trefflean

In Trefflean in January humidity is 82%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that settles into your bones, making travel uncomfortable as every step feels heavy with moisture and the cool air seems to cling to your skin.

January Average Humidity in Trefflean

This chart illustrates the average monthly humidity levels in Trefflean, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Trefflean is approximately 82%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Trefflean

In Trefflean in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Trefflean, you can visit Hourly UV Index in Trefflean.

Maximum UV Index Levels in Trefflean for January

The chart shows the monthly maximum UV Index (UVI) for Trefflean in January, 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 January, the maximum UV index in Trefflean typically reaches 2, which falls under the low exposure category.

Data source: Trefflean January 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 January Weather in Trefflean Compares to Other Months

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

This table compares monthly weather conditions in Trefflean, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (44°F)	47 mm (1.8 inches)	82%	low
February Weather	7°C (46°F)	67 mm (2.6 inches)	83%	moderate
March Weather	9°C (48°F)	62 mm (2.5 inches)	81%	moderate
April Weather	11°C (53°F)	48 mm (1.9 inches)	82%	high
May Weather	14°C (58°F)	68 mm (2.7 inches)	82%	very high
June Weather	17°C (64°F)	91 mm (3.6 inches)	80%	very high
July Weather	19°C (67°F)	48 mm (1.9 inches)	77%	very high
August Weather	18°C (65°F)	50 mm (2.0 inches)	78%	very high
September Weather	16°C (62°F)	42 mm (1.7 inches)	79%	high
October Weather	13°C (56°F)	88 mm (3.5 inches)	82%	moderate
November Weather	9°C (48°F)	72 mm (2.8 inches)	81%	low
December Weather	8°C (46°F)	100 mm (3.9 inches)	82%	low