September
Weather in September
Sea temperature
September is the month with the warmest seawater in Monte Estoril, Portugal, with an average sea temperature of 19.9°C (67.8°F).Note: For most people, swimming in water at 19.9°C (67.8°F) is not a pleasurable experience. Breathing control gets harder as the water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In September, the average length of the day in Monte Estoril is 12h and 26min.On the first day of the month, sunrise is at 07:07 and sunset at 20:07. On the last day of September, sunrise is at 07:33 and sunset at 19:21 WEST.
Updated: Feb 2, 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
When is the sea warmest in Monte Estoril?
The month with the warmest seawater in Monte Estoril is September, with an average sea temperature of 19.9°C (67.8°F).
What is the sea temperature in September in Monte Estoril?
In Monte Estoril, in September, the average water temperature is 19.9°C (67.8°F). Swimming in 19.9°C (67.8°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
What is the average length of the day in September in Monte Estoril?
In September, the average day length in Monte Estoril, Portugal, is 12h and 26min.
What time are sunrise and sunset in September in Monte Estoril?
In September, on the first day of the month, sunrise is at 07:07 and sunset at 20:07. On the last day of the month, in Monte Estoril, Portugal, sunrise is at 07:33 and sunset at 19:21 WEST.
Average sea temperature in September
Monte Estoril, Portugal
- Average sea temperature in September: 19.9°C
The best month for swimming (with the highest average sea temperature) is September (19.9°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).
Average daylight in September
Monte Estoril, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
