Nº 1
Madrid
Ideal in September
- 27° / 15° high / low
- 0.9 h rain/day
- 12.4 h daylight
27° highs with 6 rain days: inside the ideal window (18–29 °C highs, ≤13 rain days, ≤90 mm).
Things to do in Madrid in September →Spain in September
4 covered cities, one measured yardstick: average highs, rain days and daylight from multi-year records. 2 of 4 sit in the ideal band in September. Every card links to that city's own September guide.
Nº 2
Segovia
Ideal in September
- 22° / 11° high / low
- 0.5 h rain/day
- 12.4 h daylight
22° highs with 7 rain days: inside the ideal window (18–29 °C highs, ≤13 rain days, ≤90 mm).
Things to do in Segovia in September →
Nº 3
Seville
Good in September
- 31° / 19° high / low
- 0.5 h rain/day
- 12.4 h daylight
31° highs with 3 rain days: comfortable, just outside the ideal window.
Things to do in Seville in September →
Nº 4
Barcelona
Good in September
- 26° / 18° high / low
- 1.1 h rain/day
- 12.4 h daylight
26° highs with 10 rain days: comfortable, just outside the ideal window.
Things to do in Barcelona in September →Spain's holidays in September 2026
- 8 Sept Day of Asturias (Día de Asturias)
- 8 Sept Day of Extremadura (Día de Extremadura)
- 11 Sept National Day of Catalonia (Diada Nacional de Catalunya)
- 15 Sept Feast of Our Lady of Bien Aparecida (Festividad de la Bien Aparecida)
Quick answers
Where is it ideal to travel in September?
2 of the 4 cities we measure sit in the ideal band in September; Madrid, Segovia, Seville lead the ranking.
Which city is coolest in September?
Segovia, with average highs of 22 °C in our measured record.
Which city is driest in September?
Seville, averaging 3 rain days across the month.