For trekking to Annapurna Base Camp April - May (Spring) and October - November (Autumn) which are considered to be pre-monsoon and before winter respectively.
Autumn:
The weather is slightly warm during the day and cold at night depending on the elevation. The sky remains clear all day long with incredible views of the Annapurna range. There is also less chance of rain during this season and you will love to get clear consecutive days that are perfect for hiking.
Temperature: 12 to 20 degrees Celsius on average in the daytime. During the night it drops to negative 3-4 Degree Celsius on average.
Winter:
The sky remains clear and there is little to no chance of rain offering spectacular views of the snow-covered peaks. In the higher elevations extremely cold during the winter due to snow. The trails are covered with snow and passes may be blocked due to the heavy snow.
Temperature: Ranges 0- 5 degrees during day time on average. And it comes down to minus 10-15 degrees Celsius by night.
Spring:
The climate is similar to autumn, warm during days and cold during morning and night. Moderate temperatures, mild wind, and low precipitation superb for trekking conditions. The lush, colorful rhododendron forest can be seen on the trail.
Temperature: The average temperature around this season is between 16 and 22 degrees Celsius per day. And it drops to minus 2-3 degrees Celsius by night.
Summer:
In Nepal, the monsoon and summer season converge.Similarly, the monsoon brings leeches and landslides onto the trails, making things difficult for many hikers. Nevertheless, when the rain stops and the sky clears, the atmosphere becomes truly phenomenal and splendid. And not to mention the views from the mountain after the rain is just mind-boggling. During this season, the surrounding vegetation is lush green and attractive in a dustless environment.
Temperature: The temperature around this time ranges from 20-25 degrees Celsius during the day and drops to negative 1-2 degrees Celsius around night time
