17.05
sun
sun
Day
63°F
S 12 mph
Precip.
80%
80%
Night
63°F
S 15 mph
Precip.
0%
0%
18.05
mon
mon
Day
63°F
S 11 mph
Precip.
0%
0%
Night
63°F
S 11 mph
Precip.
0%
0%
19.05
tue
tue
Day
63°F
SW 9 mph
Precip.
0%
0%
Night
64°F
SW 10 mph
Precip.
0%
0%
20.05
wed
wed
Day
64°F
SW 7 mph
Precip.
0%
0%
Night
64°F
S 7 mph
Precip.
0%
0%
21.05
thu
thu
Day
64°F
S 8 mph
Precip.
0%
0%
Night
64°F
S 9 mph
Precip.
0%
0%
22.05
fri
fri
Day
64°F
S 11 mph
Precip.
0%
0%
Night
66°F
S 12 mph
Precip.
0%
0%
23.05
sat
sat
Day
64°F
NE 15 mph
Precip.
20%
20%
Night
64°F
S 16 mph
Precip.
0%
0%
sea water
temperature
temperature
| Porto Santo Island |
monthly
weather
weather
| Porto Santo Island |
current
weather
weather
| Porto Santo Island |
14 days
forecast
forecast
| Porto Santo Island |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 65.1°F. The highest and lowest sea temperatures during the month were 65.7°F and 64.6°F.
Air temperature in Porto Santo Island, °F
Precipitation total in Porto Santo Island, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Porto Santo Island
Porto Santo Island on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Porto Santo Island
Local time: 04:55
May 17, sunday
0600
63°F
S
17 mph
17 mph
0900
63°F
S
15 mph
15 mph
1200
63°F
S
12 mph
12 mph
1500
63°F
S
11 mph
11 mph
1800
63°F
S
15 mph
15 mph
2100
63°F
S
16 mph
16 mph
May 18, monday
0000
63°F
S
15 mph
15 mph
0300
63°F
S
14 mph
14 mph
