Other facts from our historical weather data: When is the rainy season in Niebla? Rainy season in Niebla occurs in the months of April, May, June, July, August and September. Which is the warmest month in Niebla? February has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Niebla? The coldest month is July with an average maximum temperature of 11°C (52°F). Which is the wettest month in Niebla? June tops the wettest month list with 405mm (15.9 in) of rainfall. Which is the driest month in Niebla? January is the driest month with 50mm (2 in) of precipitation. Which is the sunniest month in Niebla? January is the sunniest month with an average of 286 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.