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January Weather in Saint-Jean, France

Last updated: August 23, 2025

In January, the average temperature in Saint-Jean, France hovers around -6°C (21°F). Expect chilly days, with minimums plummeting to -22°C (-7°F) and occasional highs reaching 6°C (43°F). This month sees 81 mm (3.2 in) of precipitation over approximately 9 days, while the air remains humid with an average humidity of 91%. Be prepared for a cold and damp atmosphere!

January Temperature in Saint-Jean

In January in Saint-Jean, the average temperature is -6°C (21°F). Maximums can reach 6°C (43°F), while minimums can plummet to as low as -22°C (-7°F). Be prepared for chilly conditions and pack accordingly if you're planning to visit during this time.

January Weather in Saint-Jean: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Saint-Jean, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Jean, January typically has an average temperature of -6°C (21°F), with highs reaching up to 6°C (43°F) and lows dropping to around -22°C (-7°F).
JanFebMarAprMayJunJulAugSepOctNovDec212730364454585850433124
Data source: Temperature data for Saint-Jean 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.

January Precipitation in Saint-Jean

In Saint-Jean in January, the precipitation amount is 81 mm (3.2 in) spread over a duration of 9 days.

January Precipitation Trends in Saint-Jean

The chart displays monthly precipitation patterns in Saint-Jean, 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 Saint-Jean, January typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec81731158314399697264106106184
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Saint-Jean

In Saint-Jean in January humidity is 91%. With an average temperature of -6°C (21°F), this humidity feels like wandering through a cold, damp fog that clings to your skin, making it challenging to stay warm and comfortable while exploring the surroundings.

January Average Humidity in Saint-Jean

This chart illustrates the average monthly humidity levels in Saint-Jean, 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 Saint-Jean is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%87%84%83%78%75%72%63%73%89%91%90%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Saint-Jean

In Saint-Jean in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Saint-Jean, you can check the information here.

Maximum UV Index Levels in Saint-Jean for January

The chart shows the monthly maximum UV Index (UVI) for Saint-Jean 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 Saint-Jean typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101110108632
Data source: Saint-Jean 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 Saint-Jean Compares to Other Months

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

This table compares monthly weather conditions in Saint-Jean, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)81 mm (3.2 inches)91%moderate
February Weather-3°C (27°F)73 mm (2.9 inches)87%moderate
March Weather-1°C (30°F)115 mm (4.5 inches)84%very high
April Weather2°C (36°F)83 mm (3.3 inches)83%very high
May Weather7°C (44°F)143 mm (5.6 inches)78%very high
June Weather12°C (54°F)99 mm (3.9 inches)75%extreme
July Weather14°C (58°F)69 mm (2.7 inches)72%very high
August Weather14°C (58°F)72 mm (2.8 inches)63%very high
September Weather10°C (51°F)64 mm (2.5 inches)73%very high
October Weather6°C (43°F)106 mm (4.2 inches)89%high
November Weather-1°C (31°F)106 mm (4.2 inches)90%moderate
December Weather-5°C (24°F)184 mm (7.3 inches)90%low

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