According to shoppingpicks, in the month of January, Sao Tome and Principe experiences mild weather with average temperatures ranging from 24-26°C. Rainfall is quite frequent throughout this month and some thunderstorms may occur in some areas. February brings a slight increase in temperature to around 26-28°C and rainfall remains predominant throughout most parts of the country. March sees a further increase in temperatures to around 28-30°C and light rain showers become more frequent throughout much of Sao Tome and Principe. April brings even warmer weather with average temperatures ranging from 30-32°C but scattered thunderstorms may still occur in some areas. May is the warmest month in Sao Tome and Principe with average temperatures ranging from 32-34°C and light rain showers becoming more frequent throughout much of the country. June brings a slight decrease in temperature with average temperatures ranging from 30-32°C but wet weather remains predominant throughout much of Sao Tome and Principe. July sees a further decrease in temperature to around 28-30°C as rainfall becomes less frequent during this time of year. August marks the start of drier weather with average temperatures ranging from 24-26°C and minimal rainfall for most parts of the country. September brings cooler temperatures with an average range between 22-24°C but little precipitation throughout most areas. October sees a further decrease in temperature to around 20-22°C and light showers begin to become more frequent again across much of Sao Tome and Principe. November marks a slight increase in temperature to around 22-24°C and light rain showers remain predominant across much of the country. December brings warmer weather with an average range between 24-26°C and light rain showers continuing throughout much of Sao Tome and Principe during this time of year. Check businesscarriers for São Tomé and Príncipe Economics and Business.