Last updated: June 24, 2025
In September, the average temperature in Norway, United States hovers around 17°C (62°F). However, you can experience a range from a cool 0°C (32°F) to a warm 32°C (90°F). It’s also good to prepare for some rain, as the precipitation amount reaches 61 mm (2.4 in) over about 7 days. With an average humidity of 77%, the air can feel quite moist, adding to the atmosphere of the season.
In September in Norway, the average temperature is 17°C (62°F). Maximum temperatures can reach up to 32°C (90°F), while the minimum can drop as low as 0°C (32°F). This range makes it an ideal time for travelers to experience a variety of activities, from warm afternoons to cool evenings.
In Norway in September, the precipitation amount is 61 mm (2.4 in) over the course of 7 days.
In Norway in September humidity is 77%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace, creating a lush, almost tropical atmosphere that can be quite stifling for traveling, making it essential to stay hydrated and take frequent breaks in the shade.
In Norway in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Norway.
UV Risk Categories
Weather in Norway varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Norway, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 79 mm (3.1 inches) | 91% | low |
| February Weather | -5°C (23°F) | 85 mm (3.3 inches) | 89% | moderate |
| March Weather | -1°C (31°F) | 70 mm (2.8 inches) | 85% | moderate |
| April Weather | 6°C (43°F) | 122 mm (4.8 inches) | 84% | very high |
| May Weather | 13°C (55°F) | 82 mm (3.2 inches) | 78% | very high |
| June Weather | 19°C (66°F) | 72 mm (2.8 inches) | 72% | very high |
| July Weather | 21°C (71°F) | 121 mm (4.8 inches) | 75% | very high |
| August Weather | 21°C (69°F) | 81 mm (3.2 inches) | 74% | very high |
| September Weather | 17°C (62°F) | 61 mm (2.4 inches) | 77% | high |
| October Weather | 10°C (50°F) | 124 mm (4.9 inches) | 85% | moderate |
| November Weather | 2°C (36°F) | 106 mm (4.2 inches) | 86% | moderate |
| December Weather | -4°C (25°F) | 116 mm (4.6 inches) | 85% | low |