September weather forecastPortbou, Spain
September
Weather in September
Sea temperature
In Portbou, Spain, in September, the average water temperature is 21.5°C (70.7°F).Note: Swimming becomes less enjoyable for most at a surface water temperature of 21.5°C (70.7°F). As the temperature decreases below 21°C (69.8°F), breathing becomes increasingly difficult.
Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 07:13 and sunset at 20:21. On the last day of the month, sunrise is at 07:43 and sunset at 19:30 CEST.
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Portbou, Spain, the average seawater temperature in September is 21.5°C (70.7°F). For swimming, a surface water temperature of 21.5°C (70.7°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
The average day length in September in Portbou is 12h and 29min.
In September, on the first day of the month, sunrise is at 07:13 and sunset at 20:21. On the last day of the month, sunrise is at 07:43 and sunset at 19:30 CEST.
Average sea temperature in September
Portbou, Spain
- Average sea temperature in September: 21.5°C
The best month for swimming (with the highest average sea temperature) is August (21.9°C).
The coldest month (with the lowest average sea temperature) is February (12.8°C).
Average daylight in September
Portbou, Spain
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
