This study investigated the impact of humidity and temperature on the spread of COVID-19 (SARS-CoV-2) by statistically comparing modelled pandemic dynamics (daily infection and recovery cases) with daily temperature and humidity of three climate zones (Mainland China, South America and Africa) from January to August 2020 . We modelled the pandemic growth using a simple logistic function to derive information of the viral infection and describe the growth of infected and recovered cases . The results indicate that the infected and recovered cases of the first wave were controlled in China and managed in both South America and Africa . There is a negative correlation between both humidity (r = - 0.21; p = 0.27) and temperature (r = -0.22; p = 0.24) with spread of the virus . Though this study did not fully encompass socio-cultural factors, we recognise that local government responses, general health policies, population density and transportation could also affect the spread of the virus . The pandemic can be managed better in the second wave if stricter safety protocols are implemented . We urge various units to collaborate strongly and call on countries to adhere to stronger safety protocols in the second wave.