Planning for the weather is a good way to make your trip to Gili Air relaxing and enjoyable, especially when you're splurging. The hottest months are usually October and November with an average temp of 81°F, while the coldest months are August and July with an average of 78°F. The rainiest months in Gili Air are December, January, February, and March, with each month seeing an average of 12 inches of rainfall.