Barcelona weather in September
Long-run climate averages for Barcelona, Spain in September, plus what the forecast models say for the days ahead.
In September, Barcelona averages 27°C by day and 19°C at night. It is the wettest month of the year here.
September in Barcelona averages a daytime high of 27°C and an overnight low of 19°C, which reads as warm for this part of the world. It is among the three warmest months of the year here. It is also the wettest month, so build rain into any plan. Across the whole year Barcelona sees roughly 566 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Barcelona forecast with every model compared and how much they currently agree.
Barcelona weather by month
what to expect in Barcelona through the year, 1991-2020 normals, Barcelona Airport (WMO)Here is Barcelona's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Barcelona by season.
Common questions
How warm is Barcelona in September?
Is September a good time to visit Barcelona?
Does it rain a lot in Barcelona in September?
Climate averages: 1991-2020 normals, Barcelona Airport (WMO). Model accuracy re-scored over a rolling 30 days. Page updated .