Other facts from our historical weather data: Which months have the greatest rainfall in Mweiga? Most rainfall (rainy season) is seen in April and November. Which is the warmest month in Mweiga? February has an average maximum temperature of 25°C (77°F) and is the warmest month of the year. Which is the coldest month in Mweiga? The coldest month is August with an average maximum temperature of 20°C (68°F). Which is the wettest month in Mweiga? November tops the wettest month list with 195mm (7.7 in) of rainfall. Which is the driest month in Mweiga? September is the driest month with 62mm (2.4 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.