Measurements:
°C
°F
CURRENT WEATHER
17:30
Lisbon
82°F
E 7 mph
Feels like: 84°F
Precip: 3%
World Resorts Portugal Lisbon Weather

7 Day Weather Forecast

08.19
wed
DAY
82°F
NE 7 mph
precip
2%
NIGHT
72°F
SE 4 mph
precip
7%
08.20
thu
DAY
82°F
E 3 mph
precip
14%
NIGHT
70°F
S 14 mph
precip
10%
08.21
fri
DAY
78°F
SE 14 mph
precip
2%
NIGHT
66°F
S 11 mph
precip
17%
08.22
sat
DAY
76°F
SE 15 mph
precip
2%
NIGHT
66°F
S 15 mph
precip
17%
08.23
sun
DAY
76°F
SE 12 mph
precip
12%
NIGHT
66°F
SE 18 mph
precip
8%
08.24
mon
DAY
74°F
SE 17 mph
precip
2%
NIGHT
66°F
SE 9 mph
precip
15%
08.25
tue
DAY
74°F
E 9 mph
precip
4%
NIGHT
70°F
NE 7 mph
precip
29%

Lisbon Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Lisbon was 21.2°F. The maximum and minimum values were 20.4°F and 22.1°F respectively.

Lisbon on the Weather Map

Best Time to Visit Lisbon
The most sunny months:
August 28 days
July 26 days
September 23 days
The most warm months:
August 85.4 °F
July 84.2 °F
September 81.7 °F
Warmest sea temperature:
August 69.0 °F
July 68.9 °F
September 68.5 °F
The most cold months:
January 59.4 °F
February 60.8 °F
December 61.6 °F
The most rainy months:
March 4 days
November 4 days
April 4 days
The most windy months:
July 10 mph
June 10 mph
August 10 mph
more details