Festival Weather Odds

Festival and marathon weather in Portugal

6 festivals and races in Portugal with at least 10 dated editions since 1991, with the weather of every past edition from ERA5 (1991–2025).

Data updated: 2 November 2026 · Sources, licences and data

Calculated 3 November 2026 · weather: ERA5 1991–2025 · edition dates checked 2 November 2026

Music festivals

EventCountryUsual datesRain on ≥ 1 dayDay ≥ 30 °CEditions
Vilar de Mouros FestivalPortugalPortugal9–11 August41%0%17

Marathons and half marathons

EventCountryUsual datesAvg at 9:00Rain in race hoursEditions
Lisbon Half MarathonPortugalPortugal17 March13 °C15%33
Lisbon MarathonPortugalPortugal26 November15 °C21%34
Porto Half MarathonPortugalPortugal18 September18 °C22%18
Porto MarathonPortugalPortugal3 November13 °C19%21
Portugal Half MarathonPortugalPortugal4 October19 °C8%25

Climate, not a forecast: these are statistics of past weather, not a forecast for the next edition.

How we calculate