Last updated: June 18, 2025
In Saint-Nazaire, Canada, the average temperature for October hovers around 7°C (44°F). Expect chilly days, with minimal temperatures dipping as low as -8°C (17°F), while the mercury can reach a pleasant 21°C (69°F) at its peak. Be prepared for 123 mm (4.8 in) of precipitation spread across 15 days, and with an average humidity level of 89%, it's advisable to bring along your umbrella and a warm jacket!
In October in Saint-Nazaire, the average temperature is 7°C (44°F). The maximum can reach 21°C (69°F), while the minimum can drop as low as -8°C (17°F). It’s advisable to pack layers and prepare for varying weather conditions when traveling during this time.
In Saint-Nazaire in October, the precipitation amount is 123 mm (4.8 in), occurring over a span of 15 days.
In Saint-Nazaire in October humidity is 89%. With an average temperature of 7°C (44°F), this humidity feels like a dense fog enveloping you, making every step sticky and cumbersome, and presenting a challenge for travelers who may find it hard to stay dry and comfortable while exploring.
In Saint-Nazaire in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Saint-Nazaire for better planning.
UV Risk Categories
Weather in Saint-Nazaire varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Saint-Nazaire, focusing on differences in temperature, rainfall, humidity, and UV levels.
| 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 |