January Weather in Saint-Nazaire, Canada

Last updated: June 18, 2025

In January, the average temperature in Saint-Nazaire, Canada hovers around -13°C (9°F), with extremes ranging from a frigid -35°C (-31°F) to a milder 9°C (48°F). This month sees 66 mm (2.6 in) of precipitation spread over 12 days, contributing to an impressive average humidity of 96%. Prepare for a chilly and damp experience!

January Temperature in Saint-Nazaire

In January in Saint-Nazaire, the average temperature is -13°C (9°F). The maximum can reach 9°C (48°F), while the minimum can dip as low as -35°C (-31°F). If you're planning to travel during this time, be prepared for extreme cold and dress accordingly.

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

The chart illustrates January temperature patterns in Saint-Nazaire, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Nazaire, January typically has an average temperature of -13°C (9°F), with highs reaching up to 9°C (48°F) and lows dropping to around -35°C (-31°F).

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

January Precipitation in Saint-Nazaire

In Saint-Nazaire in January, the precipitation amount is 66 mm (2.6 in) over the course of 12 days.

January Precipitation Trends in Saint-Nazaire

The chart displays monthly precipitation patterns in Saint-Nazaire, 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-Nazaire, January typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 12 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 Saint-Nazaire

In Saint-Nazaire in January humidity is 96%. With an average temperature of -13°C (9°F), this humidity feels like a biting chill that cuts through layers of clothing, making travel uncomfortable and forcing you to seek shelter from the damp, frosty air.

January Average Humidity in Saint-Nazaire

This chart illustrates the average monthly humidity levels in Saint-Nazaire, 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-Nazaire is approximately 96%, 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 Saint-Nazaire

In Saint-Nazaire 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 Saint-Nazaire, you can visit Hourly UV Index in Saint-Nazaire.

Maximum UV Index Levels in Saint-Nazaire for January

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

Data source: Saint-Nazaire 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-Nazaire Compares to Other Months

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

This table compares monthly weather conditions in Saint-Nazaire, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-13°C (9°F)	66 mm (2.6 inches)	96%	low
February Weather	-12°C (11°F)	59 mm (2.3 inches)	94%	moderate
March Weather	-6°C (22°F)	81 mm (3.2 inches)	91%	moderate
April Weather	2°C (36°F)	86 mm (3.4 inches)	90%	high
May Weather	10°C (51°F)	95 mm (3.7 inches)	80%	very high
June Weather	16°C (61°F)	83 mm (3.3 inches)	73%	very high
July Weather	20°C (68°F)	122 mm (4.8 inches)	81%	very high
August Weather	18°C (65°F)	116 mm (4.6 inches)	84%	very high
September Weather	13°C (56°F)	125 mm (4.9 inches)	85%	high
October Weather	7°C (44°F)	123 mm (4.8 inches)	89%	moderate
November Weather	-1°C (30°F)	99 mm (3.9 inches)	91%	low
December Weather	-10°C (15°F)	77 mm (3.0 inches)	97%	low