Harstad Weather in September

Thinking of visiting Harstad in September? Expect moderate temperatures reaching 12°C (54°F) during the day, dropping to 6°C (43°F) at night, and be prepared for the wettest month of the year.

Rainfall in Harstad in September

It's the month with the heaviest rainfall, so an umbrella is a must to navigate the wet weather. Based on our climate data of the past 30 years, about 22 days of rain are anticipated, with 134 mm (5.3 in) on average. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Harstad in September

Daytime highs in Harstad in September reach 12°C (54°F), with nights around 6°C (43°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Harstad in September

The area experiences limited sunny days, amounting to roughly 92 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Harstad. Our weather planner can help you explore destinations with more pleasant weather conditions.