Last updated: June 24, 2025
In September, the average temperature in Norway, United States hovers around 19°C (67°F). While you can expect some pleasant warmth, be prepared for temperature fluctuations, with a minimum of 3°C (37°F) and a maximum reaching up to 34°C (93°F). With an average precipitation of 124 mm (4.9 in) spread over 10 days, the environment can be quite humid, boasting an average humidity of 78%. Make sure to pack accordingly!
In September in Norway, the average temperature is 19°C (67°F). The maximum can reach 34°C (93°F), while the minimum can drop as low as 3°C (37°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities, from warm afternoons to cool evenings.
In Norway in September, the precipitation amount is 124 mm (4.9 in) spread over a duration of 10 days.
In Norway in September humidity is 78%. With an average temperature of 19°C (67°F), this humidity feels like a warm, heavy blanket enveloping you, making traveling feel both sticky and sluggish as you navigate through the day.
In Norway in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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) | 46 mm (1.8 inches) | 81% | moderate |
| February Weather | -5°C (23°F) | 54 mm (2.1 inches) | 81% | moderate |
| March Weather | 3°C (38°F) | 73 mm (2.9 inches) | 81% | high |
| April Weather | 9°C (48°F) | 83 mm (3.3 inches) | 82% | very high |
| May Weather | 16°C (62°F) | 163 mm (6.4 inches) | 78% | very high |
| June Weather | 23°C (73°F) | 141 mm (5.6 inches) | 81% | extreme |
| July Weather | 24°C (76°F) | 88 mm (3.5 inches) | 79% | very high |
| August Weather | 22°C (72°F) | 70 mm (2.7 inches) | 77% | very high |
| September Weather | 19°C (67°F) | 124 mm (4.9 inches) | 78% | very high |
| October Weather | 11°C (52°F) | 142 mm (5.6 inches) | 78% | high |
| November Weather | 3°C (38°F) | 46 mm (1.8 inches) | 87% | moderate |
| December Weather | -1°C (30°F) | 42 mm (1.6 inches) | 84% | moderate |