Last updated: August 27, 2025
In September, the average temperature in Koppang, Norway hovers around 8°C (46°F). You'll experience a range of temperatures with a minimum dipping down to -3°C (28°F) and a maximum reaching up to 21°C (70°F). Expect approximately 84 mm (3.3 in) of precipitation spread over 15 days, accompanied by a high average humidity of 91%. Be prepared for a mix of cool and damp weather!
In September in Koppang, the average temperature is 8°C (46°F), with maximums reaching 21°C (70°F) and minimums dropping as low as -3°C (28°F). This range makes it essential for travelers to pack for both cooler days and warmer afternoons.
In Koppang in September, the total precipitation amount is 84 mm (3.3 in) recorded over a span of 15 days.
In Koppang in September, humidity is 91%. With an average temperature of 8°C (46°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and leaving a chill that seeps into your bones, creating an atmosphere that is damp and heavy, perfect for cozy indoor explorations but challenging for leisurely travel.
In Koppang in September, 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 Koppang for better planning.
UV Risk Categories
Weather in Koppang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Koppang, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 51 mm (2.0 inches) | 98% | low |
| February Weather | -7°C (19°F) | 46 mm (1.8 inches) | 95% | low |
| March Weather | -4°C (26°F) | 49 mm (1.9 inches) | 92% | moderate |
| April Weather | 1°C (34°F) | 31 mm (1.2 inches) | 88% | moderate |
| May Weather | 7°C (45°F) | 81 mm (3.2 inches) | 84% | moderate |
| June Weather | 13°C (55°F) | 101 mm (4.0 inches) | 82% | high |
| July Weather | 14°C (57°F) | 105 mm (4.1 inches) | 82% | high |
| August Weather | 12°C (54°F) | 116 mm (4.6 inches) | 87% | moderate |
| September Weather | 8°C (46°F) | 84 mm (3.3 inches) | 91% | moderate |
| October Weather | 3°C (37°F) | 101 mm (4.0 inches) | 95% | low |
| November Weather | -3°C (28°F) | 80 mm (3.2 inches) | 97% | low |
| December Weather | -7°C (20°F) | 75 mm (2.9 inches) | 98% | low |