Andorra Geography, Climate & Nature

Andorra occupies 468 square kilometres of the eastern Pyrenees, bordered by 56.6 kilometres of France to the north and 63.7 of Spain to the south, and it is mountain almost entirely: the average elevation is 1,996 metres, the highest point Coma Pedrosa at 2,942, and the lowest 840 metres where the Gran Valira leaves for Spain at the Riu Runer confluence. Three narrow valleys in a Y shape dissect the massif -- the Valira del Nord from Ordino and La Massana in the west, the Valira d'Orient from Canillo and Encamp in the east -- and meet at Escaldes-Engordany and Andorra la Vella to form the Gran Valira. The population lives on those valley floors; only 8 per cent of the land is urbanised.

Andorra la Vella, at 1,023 metres, is the highest capital in Europe, with 24,042 people in the city and over 40,000 in the urban area that includes Escaldes. The seven parishes are Canillo, Encamp, Ordino, La Massana, Andorra la Vella, Sant Julià de Lòria and Escaldes-Engordany, the last separated from the capital only in 1978. Pas de la Casa, on the French border at a 2,408-metre pass, is one of the highest points on the European road network.

Landslides and avalanches are the main natural hazards; earthquakes are frequent but below magnitude 2. There are no railways and no airport for fixed-wing aircraft.

Andorra has a high-mountain Mediterranean climate shaped by both Mediterranean and Atlantic circulation: summers are generally mild and winters long and cold, and differences in altitude, relief and valley orientation create many microclimates. Temperatures fall with elevation, and the mean annual temperature is estimated to drop below freezing above about 2,600 metres; the proportion of precipitation falling as snow rises with altitude, and the Pas de la Casa area on the Atlantic side of the divide is especially exposed to moist northerly air. The tourist board gives the average minimum as −2 °C and the average maximum as 24 °C, with frequent snowfall and rain concentrated between May and October.

The hazards are the mountain's: landslides and avalanches, heavy snow that closes the roads over the passes, and weather that changes rapidly even in summer on trails that are not always marked. Altitude sickness is a risk in parts of the country.

Best Destinations by Month has the practical reading.

Andorra's protected network is three areas that together are all Ramsar wetlands totalling 6,870 hectares: the Madriu-Perafita-Claror valley, the country's only World Heritage Site, a glacial landscape of high pastures, cliffs and steep wooded valleys; and the communal natural parks of the Sorteny valley in Ordino and the Comapedrosa valleys in La Massana. The whole parish of Ordino, 8,473 hectares, was designated a UNESCO biosphere reserve in 2020 for its forests of Scots pine, silver fir, sessile oak and mountain pine and its alpine meadows, which support Aurelio's rock lizard and the Pyrenean desman.

The country belongs to the Pyrenees conifer and mixed forest ecoregion, and the sources opened for this page carry no fuller species inventory; none is invented here. What can be said is structural: 92 per cent of a country whose average elevation is 1,996 metres is unbuilt, and most of that is forest and alpine ground.

No species-level survey was consulted beyond the sources named in the data file.

This page says only what its sources say, and on Andorra's wildlife they name two animals: Aurelio's rock lizard, endemic to a few Pyrenean massifs, and the Pyrenean desman, the aquatic mole of the mountain streams, both in the Ordino biosphere reserve. The chamois, marmots and vultures of the Pyrenees are in the country as they are on either side of it, but no sentence opened for this page places them, so they stay out. The Sorteny and Madriu valleys are where a walker would look.

The practical zoology is the advisories': unmarked trails, fast weather, avalanches, and the rule never to go alone.