The highest day temperature in September 2023 was 87°F. The lowest night temperature was 68°F. The average values for day and night temperatures during September were 81.3°F и 75.5°F respectivly.

The average sea surface temperature in September 2023 for Barcelona was 80.1°F. The maximum and minimum values were 77.0°F and 82.8°F respectively.

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

Precipitation total in September for Barcelona is 2.2 in. It makes september the most rainy month of the year.

The average wind speed in September is 7.0 mph. This value is relatively stable throughout the year.

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 9.4 hours.