Last updated: March 2, 2024
The weather in Harstad, Norway, during September is characterized by an average temperature of 9°C (48°F). Highs can soar to 18°C (65°F), while lows may dip to 1°C (34°F). Typically, the humidity level in Harstad throughout September hovers around 88%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Harstad averages 130 mm (5.1 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 13 hours 10 minutes of daylight, with the sun shining for approximately 9 hours 39 minutes each day. Additionally, there is a 20% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Harstad reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 30 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 1 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||