Other facts from our historical weather data: Which months have the greatest rainfall in Dalaas? Most rainfall (rainy season) is seen in May, June, July, August and September. When is winter in Dalaas? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Dalaas? July has an average maximum temperature of 18°C (64°F) and is the warmest month of the year. Which is the coldest month in Dalaas? The coldest month is January with an average maximum temperature of -2°C (28°F). Which is the wettest month in Dalaas? June tops the wettest month list with 216mm (8.5 in) of rainfall. Which is the driest month in Dalaas? October is the driest month with 119mm (4.7 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.