21.09
mon
mon
Day
77°F
S 4 mph
Precip.
11%
11%
Night
68°F
W 5 mph
Precip.
23%
23%
22.09
tue
tue
Day
70°F
SW 10 mph
Precip.
6%
6%
Night
63°F
NW 4 mph
Precip.
6%
6%
23.09
wed
wed
Day
72°F
NW 12 mph
Precip.
1%
1%
Night
61°F
N 4 mph
Precip.
4%
4%
24.09
thu
thu
Day
70°F
W 6 mph
Precip.
11%
11%
Night
63°F
N 4 mph
Precip.
19%
19%
25.09
fri
fri
Day
63°F
SW 19 mph
Precip.
34%
34%
Night
59°F
SW 5 mph
Precip.
72%
72%
26.09
sat
sat
Day
63°F
N 8 mph
Precip.
18%
18%
Night
59°F
NE 4 mph
Precip.
9%
9%
27.09
sun
sun
Day
70°F
E 4 mph
Precip.
4%
4%
Night
63°F
NE 4 mph
Precip.
10%
10%
sea water
temperature
temperature
| Serravalle |
monthly
weather
weather
| Serravalle |
current
weather
weather
| Serravalle |
14 days
forecast
forecast
| Serravalle |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 79.4°F. The highest and lowest sea temperatures during the month were 82.0°F and 75.6°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 66.6°F. The highest and lowest sea temperatures during the month were 71.2°F and 64.0°F.
Air temperature in Serravalle, °F
Precipitation total in Serravalle, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Serravalle
Serravalle on a weather map
Places in San Marino:
Name
°F
24 Hours Forecast
Serravalle
Local time: 10:17
September 21, monday
1200
77°F
S
4 mph
4 mph
1500
79°F
SW
6 mph
6 mph
1800
75°F
W
4 mph
4 mph
2100
70°F
NW
3 mph
3 mph
September 22, tuesday
0000
68°F
W
5 mph
5 mph
0300
66°F
W
4 mph
4 mph
0600
64°F
S
2 mph
2 mph
0900
68°F
SW
6 mph
6 mph
