Other facts from our historical weather data: Which is the warmest month in Saint Nicolas? July has an average maximum temperature of 17°C (63°F) and is the warmest month of the year. Which is the coldest month in Saint Nicolas? The coldest month is January with an average maximum temperature of -5°C (23°F). Which is the wettest month in Saint Nicolas? November tops the wettest month list with 132mm (5.2 in) of rainfall. Which is the driest month in Saint Nicolas? March is the driest month with 100mm (3.9 in) of precipitation. Which is the sunniest month in Saint Nicolas? July 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.