September weather forecastO Grove, Spain

September

Weather in September

Sea temperature

With an average sea temperature of 18.3°C (64.9°F), September is the month with the warmest seawater in O Grove, Spain.
Note: For the majority of people, swimming in water at 18.3°C (64.9°F) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 08:01 and sunset at 21:09. On the last day of September, in O Grove, sunrise is at 08:32 and sunset at 20:18 CEST.

Frequently asked questions

With an average sea temperature of 18.3°C (64.9°F), September is the month with the warmest seawater.

In O Grove, Spain, in September, the average water temperature is 18.3°C (64.9°F). For swimming, a surface water temperature of 18.3°C (64.9°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 is 12h and 29min.

In September, on the first day of the month, sunrise is at 08:01 and sunset at 21:09. On the last day of the month, sunrise is at 08:32 and sunset at 20:18 CEST.

Average sea temperature in September
O Grove, Spain

  • Average sea temperature in September: 18.3°C

The best month for swimming (with the highest average sea temperature) is September (18.3°C).
The coldest month (with the lowest average sea temperature) is March (13.6°C).

Average daylight in September
O Grove, 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).