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.
Frequently asked questions
What is the sea temperature in September in Portbou?
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).
What is the average length of the day in September in Portbou?
The average day length in September in Portbou is 12h and 29min.
What time are sunrise and sunset in September in Portbou?
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 3min
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).
Portbou, Spain
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