Forest Camp (2,440 m)
| Month | Avg high | Avg low |
|---|---|---|
| January | +8 °C | −2 °C |
| February | +9 °C | −1 °C |
| March | +12 °C | +1 °C |
| April | +16 °C | +4 °C |
| May | +17 °C | +8 °C |
| June | +19 °C | +13 °C |
| July | +19 °C | +15 °C |
| August | +19 °C | +15 °C |
| September | +18 °C | +13 °C |
| October | +16 °C | +8 °C |
| November | +13 °C | +5 °C |
| December | +10 °C | +2 °C |
High Camp (3,540 m)
| Month | Avg high | Avg low |
|---|---|---|
| January | +2 °C | −7 °C |
| February | +2 °C | −6 °C |
| March | +5 °C | −5 °C |
| April | +9 °C | −1 °C |
| May | +11 °C | +3 °C |
| June | +14 °C | +8 °C |
| July | +15 °C | +11 °C |
| August | +15 °C | +10 °C |
| September | +14 °C | +8 °C |
| October | +10 °C | +3 °C |
| November | +7 °C | 0 °C |
| December | +5 °C | −3 °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 camp’s elevation. On an open ridge like Mardi Himal, wind and cloud matter as much as temperature: the view from High Camp and the Upper Viewpoint is the reason to go, so clear skies are what you’re planning for.
The seasons
- Spring (March to May): rhododendron and oak forest in bloom below Low Camp. Afternoon cloud often builds over the ridge, so start early.
- Monsoon (June to September): rain, leeches in the forest and cloud that usually hides the peaks.
- Autumn (October to November): the clearest skies and the most reliable mountain views.
- Winter (December to February): cold nights at High Camp, and snow can make the ridge above High Camp hard going.
