World Resorts

Portugal

Lisbon Weather

Lisbon 14 Days Forecast

31.08
mon

Day

77°F

S 13 mph

Precip.
1%

Night

64°F

S 14 mph

Precip.
8%

01.09
tue

Day

72°F

S 15 mph

Precip.
12%

Night

64°F

S 11 mph

Precip.
14%

02.09
wed

Day

81°F

S 2 mph

Precip.
1%

Night

73°F

S 4 mph

Precip.
3%

03.09
thu

Day

91°F

W 2 mph

Precip.
1%

Night

81°F

S 3 mph

Precip.
10%

04.09
fri

Day

88°F

SE 7 mph

Precip.
2%

Night

79°F

S 4 mph

Precip.
6%

05.09
sat

Day

90°F

NW 3 mph

Precip.
9%

Night

75°F

NW 7 mph

Precip.
13%

06.09
sun

Day

88°F

SE 4 mph

Precip.
0%

Night

75°F

S 6 mph

Precip.
11%

07.09
mon

Day

88°F

NE 6 mph

Precip.
1%

Night

73°F

S 6 mph

Precip.
9%

08.09
tue

Day

75°F

SE 12 mph

Precip.
12%

Night

66°F

S 11 mph

Precip.
12%

09.09
wed

Day

73°F

S 16 mph

Precip.
4%

Night

64°F

S 12 mph

Precip.
6%

10.09
thu

Day

72°F

SE 14 mph

Precip.
12%

Night

64°F

S 12 mph

Precip.
17%

11.09
fri

Day

73°F

SE 11 mph

Precip.
2%

Night

68°F

E 5 mph

Precip.
10%

12.09
sat

Day

75°F

NE 11 mph

Precip.
13%

Night

66°F

NE 12 mph

Precip.
20%

13.09
sun

Day

72°F

E 13 mph

Precip.
42%

Night

68°F

E 9 mph

Precip.
19%

sea water
temperature

Lisbon

monthly
weather

Lisbon

current
weather

Lisbon

7 days
forecast

Lisbon

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in August of 2026 was 69.9°F. The highest and lowest sea temperatures during the month were 72.1°F and 68.4°F.

Show year:

2025

2024

2023

The average sea water temperature in September of 2025 was 65.9°F. The highest and lowest sea temperatures during the month were 69.3°F and 63.0°F.