If you're looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Tawau: The hottest months are usually April and May, with an average temperature of 27°C, while the coldest months are February and July, with an average of 26°C. The snowiest months in Tawau are May, April, January and February, with each month seeing an average of 64 cm of snowfall.