Gilston temperature ranges from 20-28 degree Celsius at an average for about 7 months a year. The town faces a transition from winter to summer mainly with a short span of Rainy Season.
Maximum rainfall in Gilston occurs in February and May with precipitation going up to 150 millimeter.
The months of May to September bring about winter in the locality, with the temperature falling down to 10 degree Celsius for most of the duration.
Although it is pleasant round the year, September to November right before the onset of occasional December rainfall is considered as the best time to visit Gilston. During this time, the days are pleasant, but the nights get slightly chilly.