August on the GR 20 is typically hot at low elevations and much cooler on the high ridge. Days are often sunny or mainly
clear, but afternoon cloud build-ups can trigger scattered showers and localized downpours. Daytime temperatures range
from around 13–28°C in the mountains to 30–35°C near sea level; nights vary from 6–12°C at altitude to 19–27°C lower
down. Rainfall is unevenly distributed: many days are dry, yet isolated days can bring 10–27 mm to specific segments.
Humidity and haze sometimes increase in settled spells, while clearer air follows showery bursts.
Turn this on and you'll get a rolling 7-day forecast update for your route each day while you're on the Camino - based on the newest data, so you can plan the week ahead.
You'll be asked to sign in to save this alert.
Starting near sea level, Calenzana is hot and often sunny, with highs 24–35°C and warm nights 19–27°C, interrupted only by isolated light drizzle. Climbing to Ortu and Carozzu, temperatures often reach 20–26°C by day and 9–19°C at night, with variable cloud and occasional showers; Carozzu can see rain totals up to 6 mm and brief warmer spikes around 31–33°C. Approaching Asco Stagnu, skies alternate between clear and partly cloudy, with highs 17–31°C and brief light to moderate showers up to 4 mm.
Over the high northern crest past Tighettu and Ciottulu di i Mori, days are cool with highs 13–26°C and nights 6–16°C, and unsettled spells bring drizzle and occasional moderate rain up to 6 mm. Around Manganu, conditions warm slightly with highs 19–28°C; many days are clear, though convective showers can drop around 6 mm on wetter days. The pattern remains changeable but with long dry stretches between passing showers.
At Petra Piana and Onda, expect similar mountain temperatures, with Petra Piana seeing showers up to 6 mm and Onda occasionally spiking near 10 mm amid sunny breaks. Dropping toward Vizzavone, warmth returns on some days with highs 22–33°C and nights 15–20°C, yet a few days can turn very wet with totals near 16 mm. Many days remain dry with clear or partly cloudy skies.
From Capanelle to the Prati area, days are generally mild to warm with highs 18–28°C and cool nights 7–19°C. Skies vary between clear and overcast, and most days stay dry, though brief drizzle or showers occur, generally under 5 mm.
Continuing over Usciolu to Matalza, temperatures sit around 20–26°C by day with nights 9–22°C, and rainfall risk increases. Usciolu can see up to 8 mm on a wet day, while Matalza occasionally takes a heavy downpour around 26 mm amid otherwise dry spells.
Around Asinau and I Paliri, expect mixed sun and cloud with occasional showers; Asinau often has light totals around 3 mm, but I Paliri can be hit by a localized storm near 27 mm. Toward Conca the weather turns hotter and drier with highs 26–32°C, warm nights 16–24°C, and only spotty drizzle on some days.
If you find this site useful, please consider supporting it.
Would you like me to add a new feature to the app? Or did you notice that something isn't working the way it should? Please Let me know!