Average sea water temperature in September:
+75.0°F
| Minimum sea water temperature in September: | 81.5°F |
| Maximum sea water temperature in September: | 67.1°F |
Daily sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 75.7°F. The highest and lowest sea temperatures during the month were 77.4°F and 73.2°F.
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| Fontvielle |
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14 days
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Monthly sea water temperature in Fontvielle, °F
Which Monaco resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Monaco | 75.7°F | 75.9°F |
| Monte Carlo | 75.7°F | 75.9°F |
| La Condamine | 75.7°F | 75.9°F |
| Fontvielle | 75.7°F | 75.9°F |
Best time for vacation in Fontvielle
Fontvielle on a weather map
24 Hours Forecast
Fontvielle
Local time: 02:53
December 19, friday
0300

55°F
S
9 mph
9 mph
0600

57°F
S
5 mph
5 mph
0900

57°F
S
3 mph
3 mph
1200

55°F
W
1 mph
1 mph
1500

55°F
W
1 mph
1 mph
1800

54°F
W
3 mph
3 mph
2100

55°F
SW
4 mph
4 mph
December 20, saturday
0000

57°F
SW
1 mph
1 mph

























