October in Irun averages a daily high of 21.7°C with nights around 13°C. Expect roughly 11.9 wet days totalling 134.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Irun is May–October.
Based on SAN SEBASTIAN FUENTERRABIA, SP (2.4km), 1995–2024. 21 years of October data.