La Seyne sur Mer Weather: September
 |
Average Day Temperature: | 78.9°F |
|
Average Night Temperature: | 70.1°F |
|
Sea Water Temperature: | 75.3°F |
|
Number of Sunny Days: | 23 days |
| Sunshine Hours: | 11.8 - 13.2 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.5 in | |
| detailed information | ||
forecast
| La Seyne sur Mer |
Temperature
| La Seyne sur Mer |
Air Temperature in September, °F
The highest day temperature in September 2025 was 83°F. The lowest night temperature was 57°F. The average values for day and night temperatures during September were 76.1°F и 68.0°F respectivly.
La Seyne sur Mer Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for La Seyne sur Mer was 73.4°F. The maximum and minimum values were 68.6°F and 76.0°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for La Seyne sur Mer is 1.5 in.
The average wind speed in September is 10.9 mph. It makes September one of the most windless months of the year for La Seyne sur Mer.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for La Seyne sur Mer in September is 10.3 hours.
La Seyne sur Mer on the Weather Map
| Annecy |  |
+24 |
| Antibes |  |
+46 |
| Biarritz |  |
+52 |
| Bordeaux | |
+50 |
| Cannes | |
+44 |
| Chamonix | |
+8 |
| Corsica | |
+42 |
| Etretat |  |
+40 |
| Marseilles | |
+50 |
| Menton | |
+50 |
| Montpellier | |
+48 |
| Nice | |
+46 |
| Paris | |
+42 |
| Saint-Tropez | |
+48 |
| Toulouse | |
+48 |
| 0300 |  |
50°F | SE 21 mph |
| 0600 |  |
50°F | E 19 mph |
| 0900 |  |
50°F | E 17 mph |
| 1200 | |
54°F | E 16 mph |
| 1500 | |
56°F | E 11 mph |
| 1800 |  |
54°F | N 6 mph |
| 2100 |  |
54°F | NW 12 mph |
| 0000 |  |
56°F | N 15 mph |