The best time to go to Lepchajagat is from October to April, when the weather is generally pleasant and the skies are often clear.
During these months, you'll experience mild temperatures, making it ideal for exploring the natural beauty of the area. The air is crisp, and the chances of clear views of the Kanchenjunga mountain range are much higher. This period avoids the monsoon season, which typically runs from June to September and brings heavy rainfall, often obscuring mountain views and making outdoor activities less comfortable.
For those who enjoy cooler temperatures and festive occasions, late October to November is particularly good, as it coincides with some local festivities. Similarly, March and April offer comfortable warmth before the summer heat truly sets in, and the rhododendrons are often in bloom, adding splashes of colour to the landscape.
If your priority is hiking and enjoying the peaceful surroundings without the humidity, then October, November, March, and April are your best bets.