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The Thorong La pass sign at 5,416 m on the Annapurna Circuit

Annapurna Circuit guide

Annapurna Circuit weather by month

Month-by-month average day and night temperatures at Besisahar, Manang, Thorong Phedi and Muktinath, and what each season means on the circuit.

Besisahar (760 m)

MonthAvg highAvg low
January+17 °C+9 °C
February+19 °C+11 °C
March+23 °C+12 °C
April+26 °C+15 °C
May+26 °C+19 °C
June+27 °C+22 °C
July+27 °C+23 °C
August+27 °C+23 °C
September+26 °C+22 °C
October+25 °C+18 °C
November+21 °C+14 °C
December+18 °C+11 °C

Manang (3,540 m)

MonthAvg highAvg low
January+2 °C−6 °C
February+3 °C−5 °C
March+5 °C−3 °C
April+10 °C+1 °C
May+12 °C+5 °C
June+17 °C+10 °C
July+18 °C+13 °C
August+18 °C+13 °C
September+16 °C+10 °C
October+12 °C+4 °C
November+9 °C0 °C
December+5 °C−3 °C

Thorong Phedi (4,450 m)

MonthAvg highAvg low
January−6 °C−16 °C
February−5 °C−15 °C
March−3 °C−13 °C
April+2 °C−9 °C
May+5 °C−4 °C
June+9 °C+2 °C
July+11 °C+5 °C
August+10 °C+5 °C
September+8 °C+2 °C
October+4 °C−4 °C
November+1 °C−9 °C
December−3 °C−13 °C

Muktinath (3,760 m)

MonthAvg highAvg low
January−1 °C−12 °C
February0 °C−12 °C
March+2 °C−10 °C
April+6 °C−5 °C
May+10 °C0 °C
June+14 °C+6 °C
July+14 °C+8 °C
August+14 °C+8 °C
September+12 °C+5 °C
October+9 °C−1 °C
November+6 °C−5 °C
December+2 °C−9 °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. The circuit crosses very different climates: warm and wet at Besisahar, and much drier beyond Manang, in the rain shadow of the Annapurnas.

The seasons

  • Spring (March to May): warming days, flowers on the lower trail, and Thorong La usually open. Haze builds towards May.
  • Monsoon (June to September): heavy rain and landslide risk lower down. The upper valleys around Manang and Mustang stay drier.
  • Autumn (late September to November): the clearest skies and the most popular time to cross Thorong La.
  • Winter (December to February): very cold at the top, and snow can close the pass for days. Lodges near the pass may close.