Other facts from our historical weather data: Which months have the greatest rainfall in Chettippattu? Most rainfall (rainy season) is seen in October and November. Does Chettippattu have a dry season? Yes, the months of January, February and March are very dry. Which is the hottest month in Chettippattu? May has an average maximum temperature of 39°C (102°F) and is the hottest month of the year. Which is the coolest month in Chettippattu? The coolest month is January with an average maximum temperature of 30°C (86°F). Which is the wettest month in Chettippattu? October tops the wettest month list with 194mm (7.6 in) of rainfall. Which is the driest month in Chettippattu? February is the driest month with 9mm (0.4 in) of precipitation. Which is the sunniest month in Chettippattu? May is the sunniest month with an average of 301 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.