Harstad Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from moderate to very cold in Harstad. Average daytime temperatures reach a moderate 17°C (63°F) in July. In February, the coolest month of the year, temperatures drop to a very cold -1°C (30°F).

At night, temperatures range from around 10°C (50°F) in July to -7°C (19°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Harstad has a relatively rain/snowy climate with high precipitation levels, averaging 1326 mm (52 in) of rain/snowfall annually. Despite minor fluctuations, Harstad enjoys fairly consistent precipitation throughout the year. In September, you can expect around 134 mm (5.3 in) of precipitation, while in April, Harstad receives about 88 mm (3.5 in). For more details, please visit our Harstad Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Harstad can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 8.3 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 0.0 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Harstad.

The city experiences its highest humidity in August, reaching 81%. In April, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year