Other facts from our historical weather data: Which is the warmest month in Newport-On-Tay? July has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Newport-On-Tay? The coldest month is January with an average maximum temperature of 8°C (46°F). Which is the wettest month in Newport-On-Tay? October tops the wettest month list with 94mm (3.7 in) of rainfall. Which is the driest month in Newport-On-Tay? April is the driest month with 62mm (2.4 in) of precipitation. Which is the sunniest month in Newport-On-Tay? May is the sunniest month with an average of 193 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.