The weather in Annapurna Circuit varies according to altitude, ranging from 800 m to 5416 m. The northern Annapurna region is one of Nepal’s major rain shadow zones, receiving only 10% of the monsoon rainfall. As a result, most treks in the Annapurna region, including the well-known Annapurna Circuit Trek, are accessible all year.
Annapurna Circuit Weather by Seasons and Months
Spring
Nepal experiences spring in March, April, and May. It has moderate temperatures and calm weather, making it the second-best season for trekking in Nepal.
March
- Average Temperature Range: 20°C to 26°C in lower regions, -10°C in higher regions
- The atmosphere starts getting warmer as the winter gradually leaves.
- High-altitude places like Thorung La Pass have below-freezing temperatures even in March.
- There is a lower likelihood of rain and snowfall.
April
- Average Daytime Temperature: 20°C in lower areas, and 8°C to -4°C in higher areas
- The nights are still frigid.
- The skies are clear, and the mountain views are spectacular.
May
- Average Temperature Range: 18°C to 20°C in lower regions and 14°C to 0°C in upper regions
- The nights are a little colder, with an average temperature of 5°C.
- It is the hottest month in spring.
- A weird haze may be seen over the mountains from low altitudes. Nevertheless, this is not the case at higher elevations.
Summer Monsoon
The summer monsoon season in Nepal lasts from June to August. When it rains, the temperature lowers, yet when the skies are clear and sunny, the temperature rises significantly. As a result, forecasting the weather during Annapurna Circuit Trek is difficult because it can change radically in a single day. Thunderstorms and hail are also possible. The southern sections, such as Pokhara, receive a lot of rain. However, the northern slopes of the Annapurna massif are in the rain shadow area and hence receive extremely little rainfall.
June
- Average Temperature Range: 16°C to 30°C in the lower regions, and around -4°C in the higher regions
- In early June, there is little rain. More rain falls from mid-June onward.
July
- Average Temperature Range: 6°C to 18°C
- July has the most rainfall of any month. Yet, this does not imply that it rains every day.
- It’s a little colder than in June because of the humidity.
August
- Average Temperature Range: 19°C to 23°C
- The monsoon will last through the first week of August.
- From the second week on, the weather becomes clear and sunny.
Autumn
It offers the best weather of all seasons. Because the monsoon has recently swept away the dust in the air, visibility is clear with the least haze. There are clear blue skies during the day, and the stars are visible at night. The weather in Annapurna Circuit is usually clear, sunny, and pleasant during fall.
September
- Temperatures range from 15°C to 20°C during the day and from 5°C to 8°C at night.
- September has two distinct weather patterns.
- Early September still has some monsoon impacts, with occasional rainfalls and the sky not always clear.
- Beginning in mid-September, the weather becomes more stable, with very low chances of rain and snowfall.
October
- Average Temperature Range: 20°C to 25°C during the day, whereas 10°C to 15°C at night
- The weather in the Annapurna region is often consistent and pleasant in October. As a result, it is the best season for trekking in the Annapurna region.
November
- Average Temperature Range: 12°C to 17°C during the day, dropping to -5°C at night
- Winter begins in late November, with few snowfalls in high-altitude areas.
Winter
During the winter, the lower region has an average daily temperature of 7°C to 12°C. Also, during the day, the sky is generally clear. The higher region of Annapurna Circuit, on the other hand, has bitter cold weather. Temperatures range from -10°C to -20°C. Heavy snowfalls and snow blizzards occur in the mid-winter.
December
- Average Temperature Range: 5°C to 10°C during the day and 0°C to -5°C at night.
- The beginning of December is mildly cold.
- Winter arrives in full force in mid-December, with snowfalls and harsh winds.
- The days are sunny and pleasant in the lower region, with clear blue skies.
January
- Average Daytime Temperature: 1°C to -10°C in higher regions and 5°C to 10°C in lower regions
- It is the coldest month of the year.
- During the day, though, the sky is clear, providing breathtaking views of the mountains.
February
- Average Temperature Range: 4°C to -5°C
- The weather in early February is winterlike, but by mid-February it is spring like.
- After the second week, the lower regions become significantly warmer.
- The upper regions, on the other hand, are frigid all month.
