Summer
The summer season remains calm and pleasant during the summer season. This is the best time to visit the state as the temperature is between 5-25 degrees; summer lasts from April until June.
Monsoon
Monsoon begins in July in Sikkim; the rainfall is moderate and heavy sometimes. The temperature at this time is from 4 to 15 degrees Celsius. The state is prone to landslides in this season, although the greenery flourishes well.
Winter
Winter begins in October and lasts till March. The weather is extremely cold and the temperature might drop to -5 degrees. However, this place offers a heavenly respite for snow lovers during winter.
By Air
The only airport in Sikkim is the Pakyoung Airport. No international flights land at this airport. Besides you can also land on the Bagdogra airport and take a cab from there to reach Sikkim.
By Road
Sikkim is easily accessible by car or bus from Siliguri. The fare is fixed, and it takes nearly 3-4 hrs to reach the state.
By Train
The nearest railway junction to the state is NJP in Siliguri, as there is no direct railway station linked to the state. You can hire a cab from there to reach Sikkim.