September Weather in Saint-Pierre, Saint Pierre and Miquelon

Last updated: August 31, 2025

In September, the average temperature in Saint-Pierre, Saint Pierre and Miquelon hovers around 15°C (58°F). Temperatures can drop to a minimum of 8°C (47°F), while reaching a comfortable maximum of 20°C (69°F). Expect about 128 mm (5.0 in) of precipitation spread across 11 days throughout the month, contributing to a high average humidity of 88%. Stay prepared for a mix of damp and mild conditions!

September Temperature in Saint-Pierre

In September in Saint-Pierre, the average temperature is 15°C (58°F). Maximum temperatures can reach 20°C (69°F), while minimums can drop as low as 8°C (47°F). It's a pleasant time to visit, perfect for outdoor activities and enjoying the local sights.

September Weather in Saint-Pierre: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Pierre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Pierre, September typically has an average temperature of 15°C (58°F), with highs reaching up to 20°C (69°F) and lows dropping to around 8°C (47°F).

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

September Precipitation in Saint-Pierre

In Saint-Pierre in September, the total precipitation amount is 128 mm (5.0 in) spread over 11 days.

September Precipitation Trends in Saint-Pierre

The chart displays monthly precipitation patterns in Saint-Pierre, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Saint-Pierre, September typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Saint-Pierre

In Saint-Pierre in September humidity is 88%. With an average temperature of 15°C (58°F), this humidity feels like a heavy blanket enveloping you, making travel somewhat uncomfortable and sticky, as every step seems to draw out the moisture from your skin.

September Average Humidity in Saint-Pierre

This chart illustrates the average monthly humidity levels in Saint-Pierre, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Saint-Pierre is approximately 88%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Saint-Pierre

In Saint-Pierre in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Saint-Pierre.

Maximum UV Index Levels in Saint-Pierre for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Pierre in September, 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 September, the maximum UV index in Saint-Pierre typically reaches 7, which falls under the high exposure category.

Data source: Saint-Pierre September 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 September Weather in Saint-Pierre Compares to Other Months

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

This table compares monthly weather conditions in Saint-Pierre, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	123 mm (4.9 inches)	83%	low
February Weather	-1°C (30°F)	134 mm (5.3 inches)	84%	moderate
March Weather	0°C (32°F)	150 mm (5.9 inches)	85%	moderate
April Weather	2°C (36°F)	131 mm (5.2 inches)	86%	high
May Weather	4°C (40°F)	106 mm (4.2 inches)	88%	very high
June Weather	8°C (46°F)	116 mm (4.6 inches)	91%	very high
July Weather	13°C (55°F)	146 mm (5.8 inches)	93%	very high
August Weather	17°C (62°F)	95 mm (3.8 inches)	92%	very high
September Weather	15°C (58°F)	128 mm (5.0 inches)	88%	high
October Weather	10°C (51°F)	121 mm (4.8 inches)	84%	moderate
November Weather	6°C (44°F)	155 mm (6.1 inches)	82%	moderate
December Weather	2°C (37°F)	172 mm (6.8 inches)	81%	low