Other facts from our historical weather data: Does Nicoya have a dry season? Yes, the months of January, February and March are very dry. Which is the hottest month in Nicoya? 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 Nicoya? The coolest month is December with an average maximum temperature of 31°C (88°F). Which is the wettest month in Nicoya? October tops the wettest month list with 418mm (16.5 in) of rainfall. Which is the driest month in Nicoya? January is the driest month with 11mm (0.4 in) of precipitation. Which is the sunniest month in Nicoya? March is the sunniest month with an average of 305 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.