Last updated: August 27, 2025
In September, the average temperature in Storsteinnes, Norway hovers around 7°C (46°F). Expect chilly days with a minimum temperature that can drop to -3°C (26°F), while daytime highs reach up to 18°C (65°F). The region experiences approximately 133 mm (5.2 in) of precipitation over 18 days, resulting in a notably high average humidity of 91%. Be prepared for a damp and cool atmosphere!
In September in Storsteinnes, the average temperature is 7°C (46°F). Maximums can reach 18°C (65°F), while minimums can dip as low as -3°C (26°F). Be sure to pack layers for your travels, as the weather can vary significantly throughout the day.
In Storsteinnes in September, the precipitation amount is 133 mm (5.2 in) over a span of 18 days.
In Storsteinnes in September humidity is 91%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities feel less invigorating and more exhausting, as the heavy air clings to your skin and makes every breath feel thicker.
In Storsteinnes in September, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Storsteinnes, you can visit Hourly UV Index in Storsteinnes.
UV Risk Categories
Weather in Storsteinnes varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Storsteinnes, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (19°F) | 96 mm (3.8 inches) | 95% | low |
| February Weather | -8°C (18°F) | 99 mm (3.9 inches) | 93% | low |
| March Weather | -4°C (24°F) | 142 mm (5.6 inches) | 91% | low |
| April Weather | -1°C (31°F) | 113 mm (4.4 inches) | 89% | moderate |
| May Weather | 3°C (38°F) | 92 mm (3.6 inches) | 83% | moderate |
| June Weather | 9°C (49°F) | 137 mm (5.4 inches) | 84% | moderate |
| July Weather | 13°C (55°F) | 114 mm (4.5 inches) | 85% | moderate |
| August Weather | 11°C (53°F) | 137 mm (5.4 inches) | 88% | moderate |
| September Weather | 7°C (46°F) | 133 mm (5.2 inches) | 91% | low |
| October Weather | 2°C (36°F) | 90 mm (3.5 inches) | 92% | low |
| November Weather | -3°C (27°F) | 107 mm (4.2 inches) | 92% | low |
| December Weather | -7°C (20°F) | 82 mm (3.2 inches) | 94% | low |