Annapurna Base Camp with Poon Hill weather by month

Ghorepani (2,860 m)

Month	Avg high	Avg low
January	+5 °C	−5 °C
February	+6 °C	−4 °C
March	+10 °C	−3 °C
April	+13 °C	+1 °C
May	+14 °C	+5 °C
June	+16 °C	+9 °C
July	+16 °C	+12 °C
August	+16 °C	+11 °C
September	+15 °C	+10 °C
October	+13 °C	+5 °C
November	+10 °C	+1 °C
December	+7 °C	−2 °C

Deurali (3,230 m)

Month	Avg high	Avg low
January	+2 °C	−8 °C
February	+3 °C	−7 °C
March	+6 °C	−5 °C
April	+10 °C	−2 °C
May	+11 °C	+2 °C
June	+13 °C	+7 °C
July	+14 °C	+9 °C
August	+14 °C	+9 °C
September	+13 °C	+8 °C
October	+10 °C	+2 °C
November	+7 °C	−2 °C
December	+4 °C	−5 °C

Annapurna Base Camp (4,130 m)

Month	Avg high	Avg low
January	−2 °C	−10 °C
February	−1 °C	−10 °C
March	+1 °C	−8 °C
April	+5 °C	−4 °C
May	+7 °C	0 °C
June	+11 °C	+5 °C
July	+12 °C	+7 °C
August	+12 °C	+7 °C
September	+10 °C	+5 °C
October	+6 °C	0 °C
November	+3 °C	−4 °C
December	+1 °C	−7 °C

Modelled 10-year averages (ERA5 / ERA5-Land via Open-Meteo), checked against the Pyramid research station in the Khumbu, 2016-2025 (within about 1–2 °C of the station's measurements). Temperatures only: the model's rainfall is too coarse to trust in rain-shadow valleys such as Manang, so we leave it out. Mountain valleys and ridges vary more than these grid-model averages show.

How to read these numbers

The tables show 10-year averages from a weather model, adjusted for each place’s elevation. This trek spans a big range: from warm villages below 2,000 m to Annapurna Base Camp at 4,130 m, where nights are well below freezing for much of the year.

The seasons

Spring (March to May): rhododendrons in bloom between Ghorepani and Tadapani. Afternoon cloud is common, so the clearest views are early in the day.
Monsoon (June to September): rain, leeches and cloud. The views from Poon Hill and the Sanctuary are often hidden.
Autumn (October to November): the clearest skies, and the busiest season on both trails.
Winter (December to February): cold and quiet. After heavy snow, the section between Deurali and Machapuchare Base Camp can be exposed to avalanches, and guides check conditions before crossing.