Water temperature in Royan in September
Is it warm enough to swim in Royan in September? Average water temperature in Royan in September is 19.8°C and therefore is not suitable for comfortable swimming. The warmest sea in Royan in September is 23.3°C, and the coldest is 17.1°C. Average high air temperature in Royan in September is 22°C, and average low temperature is 14°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Royan
Changes water temperature in Royan in September 2025, 2024
To get an accurate forecast for the water temperature in Royan for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Royan, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.
You can choose any other years:
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| 1 September | 21.5°C | 21°C | 19°C | 23°C |
| 2 September | 21.1°C | 21°C | 19°C | 22.9°C |
| 3 September | 21.2°C | 21°C | 18.9°C | 22.8°C |
| 4 September | 20.9°C | 20.7°C | 18.9°C | 22.8°C |
| 5 September | 21.3°C | 20.6°C | 18.8°C | 23.2°C |
| 6 September | 20.2°C | 18.7°C | 23.1°C | |
| 7 September | 20.4°C | 18.7°C | 23.1°C | |
| 8 September | 20.2°C | 18.7°C | 22.9°C | |
| 9 September | 20.4°C | 18.7°C | 23.3°C | |
| 10 September | 20.3°C | 18.8°C | 22.9°C | |
| 11 September | 20.3°C | 18.7°C | 23.1°C | |
| 12 September | 19.4°C | 18.7°C | 23°C | |
| 13 September | 19.1°C | 18.6°C | 22.9°C | |
| 14 September | 18.9°C | 18.3°C | 22.9°C | |
| 15 September | 19.2°C | 18.1°C | 22.9°C |
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| 16 September | 18.5°C | 17.9°C | 22.8°C | |
| 17 September | 18.5°C | 17.5°C | 22.8°C | |
| 18 September | 18.4°C | 17.3°C | 22.6°C | |
| 19 September | 18.8°C | 17.3°C | 22.5°C | |
| 20 September | 18.9°C | 17.5°C | 22.5°C | |
| 21 September | 18.7°C | 17.6°C | 22°C | |
| 22 September | 18.6°C | 17.9°C | 21.8°C | |
| 23 September | 18.7°C | 18°C | 21.2°C | |
| 24 September | 18.6°C | 18.1°C | 21.3°C | |
| 25 September | 18.6°C | 18.1°C | 21.4°C | |
| 26 September | 18.3°C | 17.7°C | 21.5°C | |
| 27 September | 18.1°C | 17.8°C | 21.3°C | |
| 28 September | 18°C | 17.4°C | 21.3°C | |
| 29 September | 17.6°C | 17.3°C | 21.4°C | |
| 30 September | 17.8°C | 17.1°C | 21.6°C |
Average water temperature in Royan in September over a decade
| 2015 | 2016 | 2017 | 2018 | 2019 |
| 19.1°C | 20.1°C | 19.4°C | 19.8°C | 19.6°C |
| 2020 | 2021 | 2022 | 2023 | 2024 |
| 21°C | 20.2°C | 21.2°C | 22.2°C | 19.3°C |
Royan sea state in September
Chart comparing the height of waves in Royan in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.
Weather and climate in Royan in September
This data display average monthly climate indicators in Royan in September based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip
- Average HIGH temperature22°C
- Average LOW temperature14°C
- Average rainfall2.2''/56mm
- Average sunshine7.3h
Royan water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
