SpainThe weather in September in Barcelona
It's warm in September in Barcelona with an average temperature of 27°C. Temperatures this month range from a low of 25°C to a high of 29°C. At night, you can expect temperatures between 17°C and 22°C.
Looking for great weather? September is a good time to be in Barcelona. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Barcelona, Spain. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 33°C in 2016, Barcelona reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 19°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 26°C.
Water temperature
The water temperature at Barcelona is 27°C this month. Nice and warm for a swim.
Rainfall amount
In September, there is an average of 77 mm of precipitation, spread over 11 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in September for Barcelona
Click on any day in September to get detailed info about the usual weather on that day in Barcelona. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Barcelona | New York | |
|---|---|---|
| Average temperature | 27°C | 27°C |
| Max. temperature | 29°C | 31°C |
| Min. temperature | 17°C | -5°C |
| Total precipitation | 77 mm | 57 mm |
| Rainy days | 11 days | 9 days |
Start of September
The month of September starts in Barcelona with hot temps, averaging around 28°C during the day and nights around 21°C.
Mid September
By mid-September, daytime temps stay steady at around 28°C, with nights around 20°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Barcelona is around 26°C, while nighttime temps are about 18°C. A shower might pop up, but overall, the weather will be dry and sunny.
Find affordable trips to Barcelona
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Barcelona for all months and discover the best travel time
Curious about the weather in other parts of Spain? Check out the climate and weather for spots like Ibiza, Majorca, Tenerife, or explore other destinations in Spain.
Temperature charts
These charts show the average temperatures in September in Barcelona, Spain. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Barcelona
Temperature in September in Barcelona over the years
Precipitation charts
These charts show the average amount of precipitation in September in Barcelona, Spain. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Barcelona
Total precipitation in September in Barcelona over the years
Daily UV index in September in Barcelona
This chart shows the average daily UV index in September in Barcelona, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Barcelona
Have you been to Barcelona in September?
Share your weather experience in September in Barcelona.
Average weather in Barcelona by month
Click on a month below to see detailed weather info for Barcelona. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.