this makes it the largest town in Helgeland and the second largest (after. The.51-square-kilometre (3,090-acre) town has a population (2013) of 18,358. Average precipitation is 1400 mm/year. Meyer started a trade center, on licence from the royal authority. There are usually two to three warm periods during the summer, when the average temperature is between 20 and 26 C (68 and 79 F) at daytime. Have a drink or a snack in our brightly decorated and comfy lobby bar.