19.05
tue
tue
Day
68°F
SE 4 mph
Precip.
0%
0%
Night
61°F
S 6 mph
Precip.
0%
0%
20.05
wed
wed
Day
75°F
SW 6 mph
Precip.
0%
0%
Night
68°F
S 4 mph
Precip.
0%
0%
21.05
thu
thu
Day
77°F
NE 1 mph
Precip.
0%
0%
Night
73°F
SW 5 mph
Precip.
0%
0%
22.05
fri
fri
Day
81°F
NW 4 mph
Precip.
0%
0%
Night
72°F
SE 2 mph
Precip.
0%
0%
23.05
sat
sat
Day
79°F
SE 3 mph
Precip.
0%
0%
Night
70°F
NW 7 mph
Precip.
0%
0%
24.05
sun
sun
Day
77°F
N 4 mph
Precip.
0%
0%
Night
70°F
NW 6 mph
Precip.
0%
0%
25.05
mon
mon
Day
79°F
NE 2 mph
Precip.
0%
0%
Night
72°F
S 6 mph
Precip.
0%
0%
26.05
tue
tue
Day
81°F
E 2 mph
Precip.
0%
0%
Night
72°F
SW 6 mph
Precip.
0%
0%
27.05
wed
wed
Day
82°F
SW 6 mph
Precip.
0%
0%
Night
72°F
E 6 mph
Precip.
0%
0%
28.05
thu
thu
Day
81°F
NE 2 mph
Precip.
0%
0%
Night
72°F
SW 3 mph
Precip.
0%
0%
29.05
fri
fri
Day
81°F
NW 3 mph
Precip.
0%
0%
Night
68°F
S 7 mph
Precip.
0%
0%
30.05
sat
sat
Day
77°F
SE 10 mph
Precip.
0%
0%
Night
63°F
S 7 mph
Precip.
0%
0%
31.05
sun
sun
Day
72°F
SE 12 mph
Precip.
0%
0%
Night
61°F
SE 13 mph
Precip.
0%
0%
01.06
mon
mon
Day
68°F
SE 8 mph
Precip.
0%
0%
Night
63°F
SE 11 mph
Precip.
0%
0%
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 63.1°F. The highest and lowest sea temperatures during the month were 63.7°F and 62.2°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 67.7°F. The highest and lowest sea temperatures during the month were 71.6°F and 65.7°F.
Air temperature in Lisbon, °F
Precipitation total in Lisbon, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Lisbon
Lisbon on a weather map
Places in Portugal:
Name
°F
24 Hours Forecast
Lisbon
Local time: 05:18
May 19, tuesday
0600
55°F
SE
2 mph
2 mph
0900
61°F
SE
1 mph
1 mph
1200
68°F
SE
4 mph
4 mph
1500
72°F
SE
10 mph
10 mph
1800
68°F
SE
12 mph
12 mph
2100
63°F
SE
9 mph
9 mph
May 20, wednesday
0000
61°F
S
6 mph
6 mph
0300
59°F
S
6 mph
6 mph
