Tassili n'Ajjer through the year
The hiking season at Tassili n'Ajjer runs November to March. At about 1,144.3 metres, mean monthly temperature ranges from 13 in January to 33 in June.
Algeria · Sahara Massifs
Best time to hike Tassili n'Ajjer
Selected representative ERA5-Land grid cell at about 1,144 m; not a claim about every route across the region.
Plan with real conditions
Compare the hiking year
Start with these months
The existing model's best months. Compare the conditions below before choosing a route.
Swipe sideways to compare all conditions →
| Month | Hiking-hour temperature | Wet days per month | Days with modelled snow | Daylight | Season guide |
|---|---|---|---|---|---|
| January → | 13.1°C | ≈ 0.6 | 0% | 10 h 48 min | Best month |
| February → | 16.0°C | ≈ 0.6 | 0% | 11 h 18 min | Best month |
| March → | 21.0°C | ≈ 0.7 | 0% | 12 h 00 min | View month |
| April | 26.6°C | ≈ 0.4 | 0% | 12 h 48 min | No recommendation |
| May | 30.6°C | ≈ 1.2 | 0% | 13 h 24 min | No recommendation |
| June | 33.4°C | ≈ 1.3 | 0% | 13 h 42 min | No recommendation |
| July | 33.2°C | ≈ <0.1 | 0% | 13 h 36 min | No recommendation |
| August | 32.7°C | ≈ 0.5 | 0% | 13 h 00 min | No recommendation |
| September | 31.1°C | ≈ 1.2 | 0% | 12 h 18 min | No recommendation |
| October | 26.2°C | ≈ 1.6 | 0% | 11 h 36 min | No recommendation |
| November → | 20.1°C | ≈ 0.3 | 0% | 10 h 54 min | View month |
| December → | 14.8°C | ≈ 0.4 | 0% | 10 h 36 min | Best month |
What these numbers describe
Historical climate at one selected model cell. Higher routes, sheltered valleys and exposed ridges can differ substantially.
Model elevation: 1,144 m · Historical period: 1991–2025
Trail wind is not available here. This model does not resolve exposed ridges or gusts; check a local mountain forecast.
How to read these figures
Selected cell: 25.5, 9.0
Temperature sampling window (local time, limited to daylight): 08:00–18:00.
A wet day has at least 1 mm of total precipitation (including snow water equivalent). It may rain for only part of the day.
A snow day meets either model threshold: 10% snow cover or 2 cm snow depth.
Turn the climate into a trip
Choose a specific route and check its distance, ascent, difficulty, current access and forecast. These are not supplied by the climate model.
Elevation view
One reproducible reference point
The monthly value represents the selected representative ERA5-Land grid cell. It deliberately does not pretend to describe every route across the region.
25.5, 9.0 · 1,144 m
representative1,094–1,195 m100% weight
Months we do not recommend
7 months do not clear the gate
The record for these months is complete. They carry no hiking score because at least one critical component is at or below 20, and we would rather say so here than publish a weak recommendation.
- April26.6°C1% wet daysheat below the floor
- May30.6°C4% wet daysheat below the floor
- June33.4°C4% wet daystemperature, heat below the floor
- July33.2°C0% wet daystemperature, heat below the floor
- August32.7°C2% wet daystemperature, heat below the floor
- September31.1°C4% wet daysheat below the floor
- October26.2°C5% wet daysheat below the floor
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More around Tassili n'Ajjer
Hiking areas
Why most of the year is missing
In June the hiking-window temperature reaches 33 degrees. We withhold the rest of the year because sustained heat makes a walk a question of time of day and water, rather than of season.
Conditions in February
The strongest scored month is February: about 16 degrees in the hiking window, rain on 2 percent of days, and 11 hours of daylight.
What these figures cover
Every figure comes from one selected ERA5-Land model grid cell at 25.50, 9.00, 1,144.3 metres, averaged over 1991 to 2025. It describes that point rather than every route in the region, and it is not a forecast. Wind is coarse 10 metre grid wind, not a statement about exposed paths or gusts.
Quick answers
Questions about Tassili n'Ajjer
- When should you hike Tassili n'Ajjer?
- 5 of twelve months clear our criteria, and February scores highest.
- Why are some months not recommended?
- In 7 months at least one critical component falls below the threshold, most often heatStress.
- What do these figures describe?
- One selected ERA5-Land model grid cell at 1144.3 metres, averaged over 1991 to 2025. It is not a forecast and not a statement about individual trails.
Tours and activities around Tassili n'Ajjer
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