Last updated: August 23, 2025
In September, the average temperature in Port-aux-Francais, French Southern Territories hovers around 2°C (35°F). Expect chilly days, with minimums plummeting to -6°C (21°F) and maximums rising to 10°C (50°F). This month also brings significant precipitation, totaling 84 mm (3.3 in) over approximately 15 days, and with an average humidity of 83%, it’s best to prepare for a damp and cool experience!
In September in Port-aux-Francais, the average temperature is 2°C (35°F). The maximum can reach 10°C (50°F), while the minimum can dip as low as -6°C (21°F). Travelers should be prepared for chilly conditions and pack accordingly to ensure a comfortable experience.
In Port-aux-Francais in September, the total precipitation amount is 84 mm (3.3 in) recorded over a span of 15 days.
In Port-aux-Francais in September humidity is 83%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel quite taxing.
In Port-aux-Francais in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Port-aux-Francais.
UV Risk Categories
Weather in Port-aux-Francais varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Port-aux-Francais, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (45°F) | 60 mm (2.4 inches) | 90% | extreme |
| February Weather | 8°C (46°F) | 63 mm (2.5 inches) | 89% | very high |
| March Weather | 7°C (45°F) | 75 mm (3.0 inches) | 88% | high |
| April Weather | 5°C (42°F) | 106 mm (4.2 inches) | 84% | moderate |
| May Weather | 3°C (39°F) | 95 mm (3.7 inches) | 85% | low |
| June Weather | 3°C (37°F) | 74 mm (2.9 inches) | 82% | low |
| July Weather | 2°C (36°F) | 98 mm (3.8 inches) | 80% | low |
| August Weather | 2°C (36°F) | 102 mm (4.0 inches) | 82% | moderate |
| September Weather | 2°C (35°F) | 84 mm (3.3 inches) | 83% | moderate |
| October Weather | 3°C (38°F) | 81 mm (3.2 inches) | 81% | high |
| November Weather | 5°C (41°F) | 81 mm (3.2 inches) | 86% | very high |
| December Weather | 6°C (43°F) | 82 mm (3.2 inches) | 88% | extreme |