January Weather in Treffiagat, France

Last updated: August 23, 2025

In January, the average temperature in Treffiagat, France hovers around 9°C (48°F). Expect chilly nights with minimums dipping to 1°C (33°F), while daytime highs reach a mild 14°C (57°F). With an average precipitation of 68 mm (2.7 in) over 13 days, it's a good idea to carry an umbrella! Moreover, the air feels quite damp with an average humidity of 82%.

January Temperature in Treffiagat

In January, in Treffiagat, the average temperature is 9°C (48°F). Maximum temperatures can reach 14°C (57°F), while minimums can dip as low as 1°C (33°F). This mild weather makes Treffiagat a pleasant destination for travelers seeking a cool and refreshing getaway.

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

The chart illustrates January temperature patterns in Treffiagat, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Treffiagat, January typically has an average temperature of 9°C (48°F), with highs reaching up to 14°C (57°F) and lows dropping to around 1°C (33°F).

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

January Precipitation in Treffiagat

In Treffiagat in January, the precipitation amount is 68 mm (2.7 in) spread over 13 days.

January Precipitation Trends in Treffiagat

The chart displays monthly precipitation patterns in Treffiagat, 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 Treffiagat, January typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 13 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 Treffiagat

In Treffiagat in January, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.

January Average Humidity in Treffiagat

This chart illustrates the average monthly humidity levels in Treffiagat, 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 Treffiagat 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 Treffiagat

In Treffiagat 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 Treffiagat, you can visit Hourly UV Index in Treffiagat.

Maximum UV Index Levels in Treffiagat for January

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

Data source: Treffiagat 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 Treffiagat Compares to Other Months

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

This table compares monthly weather conditions in Treffiagat, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	68 mm (2.7 inches)	82%	low
February Weather	9°C (49°F)	93 mm (3.6 inches)	83%	moderate
March Weather	10°C (50°F)	71 mm (2.8 inches)	81%	moderate
April Weather	11°C (52°F)	36 mm (1.4 inches)	82%	high
May Weather	13°C (57°F)	56 mm (2.2 inches)	82%	very high
June Weather	16°C (62°F)	53 mm (2.1 inches)	80%	very high
July Weather	18°C (65°F)	42 mm (1.6 inches)	77%	very high
August Weather	18°C (64°F)	52 mm (2.1 inches)	78%	very high
September Weather	17°C (62°F)	50 mm (2.0 inches)	79%	high
October Weather	14°C (58°F)	96 mm (3.8 inches)	82%	moderate
November Weather	12°C (53°F)	106 mm (4.2 inches)	81%	low
December Weather	11°C (51°F)	138 mm (5.4 inches)	82%	low