Average sea water temperature in September:
+74.6°F
| Minimum sea water temperature in September: | 81.9°F |
| Maximum sea water temperature in September: | 68.9°F |
Daily sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 75.2°F. The highest and lowest sea temperatures during the month were 77.4°F and 71.4°F.
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| Serravalle |
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| Serravalle |
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Monthly sea water temperature in Serravalle, °F
Which San Marino resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Acquaviva | 75.2°F | 75.5°F |
| Borgo Maggiore | 75.2°F | 75.5°F |
| Chiesanuova | 75.2°F | 75.5°F |
| Serravalle | 75.2°F | 75.5°F |
| San Marino | 75.1°F | 75.6°F |
| Domagnano | 75.1°F | 75.6°F |
| Mentegiardino | 75.1°F | 75.6°F |
| Faetano | 75.1°F | 75.6°F |
| Fiorentino | 75.1°F | 75.6°F |
Best time for vacation in Serravalle
Serravalle on a weather map
Places in San Marino:
Name
°F
24 Hours Forecast
Serravalle
Local time: 19:28
July 21, tuesday
2100

72°F
SE
2 mph
2 mph
July 22, wednesday
0000

70°F
E
6 mph
6 mph
0300

70°F
SE
7 mph
7 mph
0600

72°F
SE
7 mph
7 mph
0900

73°F
S
9 mph
9 mph
1200

75°F
W
10 mph
10 mph
1500

77°F
SW
11 mph
11 mph
1800

77°F
SW
7 mph
7 mph

























