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.
Updated: Jul 26, 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
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).





