Zumaia
Spain
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Zumaia, Spain

Sea temperature

In September, the average sea temperature in Zumaia, Spain, is 20.8°C (69.4°F).
Note: For swimming, a surface water temperature of 20.8°C (69.4°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).

Daylight

In September, the average length of the day is 12.5h.

How cold is the water in September in Zumaia?

In Zumaia, Spain, in September, the average water temperature is 20.8°C (69.4°F). Swimming in 20.8°C (69.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Zumaia have in September?

In Zumaia, the average length of the day in September is 12.5h.
Average sea temperature in September - Zumaia, Spain
  • Average sea temperature in September: 20.8°C

The best month for swimming (with the highest average sea temperature) is August (21.3°C).
The coldest month (with the lowest average sea temperature) is February (12.4°C).

Average daylight in September - Zumaia, Spain
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).