Other facts from our historical weather data: When is the rainy season in Tây Ninh? Rainy season in Tây Ninh occurs in the months of May, June, July, August, September and October. Does Tây Ninh have a dry season? Yes, the months of January and February are very dry. Which is the hottest month in Tây Ninh? April has an average maximum temperature of 36°C (97°F) and is the hottest month of the year. Which is the coolest month in Tây Ninh? The coolest month is January with an average maximum temperature of 33°C (91°F). Which is the wettest month in Tây Ninh? September tops the wettest month list with 314mm (12.4 in) of rainfall. Which is the driest month in Tây Ninh? February is the driest month with 11mm (0.4 in) of precipitation. Which is the sunniest month in Tây Ninh? March is the sunniest month with an average of 278 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.