The climate of Longyearbyen in September is humid. An average of 69 mm precipitation is recorded over 16 days. The situation is wetter than the previous month: in August, an average of 59 mm is recorded over 15 days.
Temperatures are very cold in Longyearbyen in September: it is necessary to dress warmly. The average maximum temperature reaches 2°C, while the minimum falls to about -1°C. The month's average temperature is 1°C. These normals should be compared with the records recorded in Longyearbyen in September: 9°C as a maximum in 2017 and -14°C as a minimum in 2014. Plan for about 16 days with temperatures below 0°, which is 53% of the month.
In September, the days last on average 14:24 in Longyearbyen. The sun rises around 04:38 and sets around 19:02.
With very unfavorable weather, the month of September is generally not recommended for traveling to Longyearbyen in Norway.
Some activities remain possible even if conditions are not optimal: Northern or Southern Lights, Cultural visits and heritage, Animal observation, Nature and landscapes, Gastronomy and Boat trip and cruise.
By contrast, these activities are not recommended or are ill-suited in Longyearbyen in September: Winter sports and snow.
