Other facts from our historical weather data: Which months have the greatest rainfall in Hamkoll? Most rainfall (rainy season) is seen in January, October, November and December. When is winter in Hamkoll? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Hamkoll? July has an average maximum temperature of 19°C (66°F) and is the warmest month of the year. Which is the coldest month in Hamkoll? The coldest month is February with an average maximum temperature of 1°C (34°F). Which is the wettest month in Hamkoll? January tops the wettest month list with 172mm (6.8 in) of rainfall. Which is the driest month in Hamkoll? April is the driest month with 91mm (3.6 in) of precipitation. Which is the sunniest month in Hamkoll? June is the sunniest month with an average of 275 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.