Other facts from our historical weather data: Which is the warmest month in Straumsnes? July has an average maximum temperature of 16°C (61°F) and is the warmest month of the year. Which is the coldest month in Straumsnes? The coldest month is February with an average maximum temperature of 3°C (37°F). Which is the wettest month in Straumsnes? October tops the wettest month list with 140mm (5.5 in) of rainfall. Which is the driest month in Straumsnes? June is the driest month with 69mm (2.7 in) of precipitation. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.