Last updated: June 18, 2025
In Campbellton, Canada, the average temperature in September hovers around 12°C (54°F). This month can bring some variability, with temperatures ranging from a chilly -4°C (25°F) to a warm 28°C (82°F). Expect a total precipitation of 124 mm (4.9 in) spread over 10 days, contributing to an average humidity of 85%.
In September in Campbellton, the average temperature is 12°C (54°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -4°C (25°F). Travelers should prepare for a wide range of temperatures and pack accordingly.
In Campbellton in September, the precipitation amount is 124 mm (4.9 in) spread over a duration of 10 days.
In Campbellton in September, humidity is 85%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making traveling not only uncomfortable but also exhausting as the damp air clings to your skin and slows your movements.
In Campbellton in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Campbellton, you can refer to this Hourly UV Index in Campbellton.
UV Risk Categories
Weather in Campbellton varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Campbellton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -11°C (12°F) | 85 mm (3.4 inches) | 89% | low |
| February Weather | -10°C (14°F) | 75 mm (3.0 inches) | 90% | moderate |
| March Weather | -5°C (23°F) | 84 mm (3.3 inches) | 88% | moderate |
| April Weather | 2°C (35°F) | 114 mm (4.5 inches) | 86% | high |
| May Weather | 9°C (49°F) | 90 mm (3.5 inches) | 83% | very high |
| June Weather | 15°C (59°F) | 91 mm (3.6 inches) | 75% | very high |
| July Weather | 18°C (65°F) | 86 mm (3.4 inches) | 82% | very high |
| August Weather | 17°C (64°F) | 81 mm (3.2 inches) | 84% | very high |
| September Weather | 12°C (54°F) | 124 mm (4.9 inches) | 85% | high |
| October Weather | 6°C (43°F) | 116 mm (4.5 inches) | 87% | moderate |
| November Weather | -1°C (30°F) | 131 mm (5.1 inches) | 86% | low |
| December Weather | -8°C (18°F) | 110 mm (4.3 inches) | 88% | low |