Other facts from our historical weather data: When is winter in Hudiksvall? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Hudiksvall? July has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Hudiksvall? The coldest month is February with an average maximum temperature of 0°C (32°F). Which is the wettest month in Hudiksvall? August tops the wettest month list with 80mm (3.1 in) of rainfall. Which is the driest month in Hudiksvall? March is the driest month with 38mm (1.5 in) of precipitation. Which is the sunniest month in Hudiksvall? June is the sunniest month with an average of 288 hours of sunshine. 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.