Weather in Sevilla in September

A good month. September is a solid month to be in Sevilla. Highs average 33 °C, lows 18.9 °C, and rain falls on 4 days — nothing in the month is working against you.

September ranks 9 of 12 in Sevilla: past the worst of the year but short of March, which is the month to book if the dates are open.

Rain falls on only 4 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 33 °C days and 18.9 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 9 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest September day reached 45.9 °C and the coldest night fell to 12.9 °C, and the wettest single day dropped 56 mm — roughly 233% of the month's rain in one day.

This is the volatile part. September rainfall has ranged from 0 mm to 80 mm across the twenty years measured — a 80 mm spread around an average of 24 mm. The average is real but almost no individual September looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 7.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 51%.

How September sits in the year

The month is on the way down: 5.5 °C cooler than August, with October dropping another 6 °C. The first week and the last are not the same trip.

Daylight in September

12.5 hours of daylight, losing 1.2 hours across the month. That is between Sevilla's extremes of 14.7 and 9.6 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 33 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage. Within September itself the daily swing is 14.2 °C, so mornings and afternoons need different clothes.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

September in Sevilla versus nearby

If Sevilla is one option among several, the nearby comparison is worth making. Málaga is a better bet in September — 7.8 °C cooler, the same number of rain days. Faro is a better bet in September — 7.3 °C cooler, 1 day less rain.

So: September is a compromise. March is 19 points better and is what Sevilla is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Sevilla

See all twelve months in Sevilla, or where else to go in September.