Last updated: August 27, 2025
In September, the average temperature in Rottne, Sweden is a mild 12°C (55°F). Expect temperatures to range from a brisk -1°C (31°F) to a pleasantly warm 24°C (76°F). With 73 mm (2.9 in) of precipitation spread over 12 days, be prepared for some wet weather. The air tends to be quite humid with an average humidity of 82%, adding a touch of moisture to the atmosphere.
In September in Rottne, the average temperature is 12°C (55°F), with maximums reaching up to 24°C (76°F) and minimums dropping as low as -1°C (31°F). It's a great time to visit Rottne for those who enjoy mild weather and the chance to experience a variety of temperatures throughout the day.
In Rottne in September, the precipitation amount is 73 mm (2.9 in) occurring over a span of 12 days.
In Rottne in September, humidity is 82%. With an average temperature of 12°C (55°F), this humidity feels like a heavy blanket wrapping around you, making even a simple walk feel laborious and sticky, which can be quite exhausting for traveling.
In Rottne 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 Rottne.
UV Risk Categories
Weather in Rottne varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Rottne, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 46 mm (1.8 inches) | 92% | low |
| February Weather | 0°C (32°F) | 56 mm (2.2 inches) | 91% | low |
| March Weather | 2°C (35°F) | 57 mm (2.2 inches) | 89% | moderate |
| April Weather | 6°C (43°F) | 33 mm (1.3 inches) | 82% | moderate |
| May Weather | 11°C (52°F) | 63 mm (2.5 inches) | 70% | high |
| June Weather | 16°C (62°F) | 58 mm (2.3 inches) | 65% | high |
| July Weather | 17°C (63°F) | 83 mm (3.3 inches) | 65% | high |
| August Weather | 16°C (61°F) | 81 mm (3.2 inches) | 71% | high |
| September Weather | 12°C (55°F) | 73 mm (2.9 inches) | 82% | moderate |
| October Weather | 8°C (47°F) | 80 mm (3.1 inches) | 90% | low |
| November Weather | 4°C (40°F) | 49 mm (1.9 inches) | 92% | low |
| December Weather | 1°C (34°F) | 62 mm (2.4 inches) | 91% | low |