Autumn (September - November)
This season is considered the best time for trekking in Nepal since it offers superb weather conditions and excellent mountain views. Temperatures are moderate, and skies are generally clear, making it the best time to take on trekking trips. Occasional short storms may dump snow at high altitudes.
Winter (December - February)
This season is noted for occasional snowfall only at higher elevations, making it suitable for trekking at lower height, normally below 3500m. Snow-capped mountains are still visible during this time.
Spring (March - May)
This is the other best time for any trekking routes in Nepal. This season offers different varieties of wild flowers, especially the rhododendrons, making the hillside above 3000m a hunting paradise during this time of the year. It is mildly warm at lower elevations, but at higher elevation over 4000m; the temperature is rather moderate.
Summer/Monsoon (June - August)
Summer months continue up to mid-September making travel wet and warm. This time is a blessing for the botanists or photographers as the higher valleys and meadows blossom with flowers and lush vegetation, making this the perfect time to capture Nepal in all its beauty. It’s recommended to carry insect repellent when trekking during these months.