The Alto Tajo month by month
The Alto Tajo in May: wild orchids, peonies and peak greenery
May is perhaps the most complete month in the Alto Tajo: ideal temperatures for walking, rivers still carrying good flows, wild orchids and peonies blooming across clearings and parameras, and birds in full nesting activity. Days are long and the landscape reaches its deepest green.
- Wild orchids
- Wild peonies
- Nesting birds
- Long hiking routes
- Long days
- Avg. max (°C)
- 20 °C
- Avg. min (°C)
- 7 °C
- Rainfall (mm)
- 53 mm
- Frost days
- 1
Average of 110 atlas villages (ERA5, 2015–2024). The coldest in may is Masegosa (6 °C average minimum) and the mildest, Trillo (23 °C average maximum).
Flora
Wild peonies blossom in pine clearings, alongside dozens of wild orchid species across limestone meadows and forest margins. The high parameras burst into blossom with thyme and gorse.
Wildlife
Peak breeding season: vulture chicks can already be spotted in nests, and the cliff faces bustle with activity. A great month to spot roe deer at dawn along meadow margins.
Water
Rivers maintain generous flows and travertine tufa barriers actively build new mineral terraces.
Practical tips
The finest month for long hikes and Geopark trails. Carry sun protection: at this altitude solar radiation is intense even when ambient temperatures are mild.
The night sky in may
The Milky Way emerges before midnight from the east, with the galactic core in Sagittarius clearly visible in the small hours. Early in the month, look for the Eta Aquariids.
Traces of time in this season
The season changes how you see these places. Their stories belong to other scales of time: from the formation of the landscape to the work and lives of those who inhabited it.

Hundido de Armallones: the rock collapse that dammed the Tagus
Armallones, Ocentejo
Chequilla
Guadalajara · 7 places
Laguna de Taravilla: an 11,000-year-old natural tufa dam
TaravillaContinue reading: Before us.
To visit: Choose one hiking outing, not all three destinations in a single day. Check seasonal restrictions for bird nesting.
Check the conditions on each guide or start with the getting started guide.
Preguntas frecuentes
Which is the best month to visit the Alto Tajo?
May and June combine pleasant temperatures, flowing rivers, wild blossoms, and long daylight. October is the other great season, known for the deer rut, wild mushrooms, and autumn foliage.
Are there wild orchids in the Alto Tajo?
Yes. The limestone soils host numerous wild orchid species, which flower mainly between May and June. Admire and photograph them without picking: many are strictly protected.