The highest day temperature in September 2023 was 92°F. The lowest night temperature was 82°F. The average values for day and night temperatures during September were 89.8°F и 82.7°F respectivly.

The average sea surface temperature in September 2023 for Barcelona was 87.6°F. The maximum and minimum values were 87.0°F and 88.2°F respectively.

Most of the days in September are cloudy but you can also expect sunny or gloomy days.

Precipitation total in September for Barcelona is 1.5 in. It makes september one of the most rainy months of the year.

The average wind speed in September is 5.3 mph. It makes September the most windless month of the year for Barcelona.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Barcelona in September is 7.0 hours.