Planning for the weather is a good way to make your trip to Dete relaxing and enjoyable, especially when you’re splurging. The hottest months are usually October and September, with an average temperature of 25°C, while the coldest months are July and June, with an average of 18°C. The rainiest months in Dete are January, December, February and March, with each month seeing an average of 213 mm of rainfall.