Measurements:
°C
°F
CURRENT WEATHER
01:41
Lisbon
70°F
N 9 mph
Feels like: 70°F
Precip: 21%
World Resorts Portugal Lisbon Weather

7 Day Weather Forecast

09.29
tue
DAY
74°F
N 16 mph
precip
10%
NIGHT
70°F
N 12 mph
precip
91%
09.30
wed
DAY
70°F
S 6 mph
precip
17%
NIGHT
64°F
S 7 mph
precip
10%
10.01
thu
DAY
74°F
S 11 mph
precip
10%
NIGHT
62°F
S 11 mph
precip
13%
10.02
fri
DAY
74°F
S 4 mph
precip
12%
NIGHT
68°F
S 2 mph
precip
17%
10.03
sat
DAY
76°F
NE 4 mph
precip
1%
NIGHT
68°F
SE 3 mph
precip
18%
10.04
sun
DAY
80°F
N 2 mph
precip
3%
NIGHT
70°F
SE 6 mph
precip
8%
10.05
mon
DAY
74°F
SE 11 mph
precip
10%
NIGHT
64°F
S 13 mph
precip
6%

Lisbon Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Lisbon was 20.2°F. The maximum and minimum values were 19.2°F and 21.5°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 85.2 °F
July 84.2 °F
September 82.2 °F
Warmest sea temperature:
August 69.2 °F
July 68.9 °F
September 68.6 °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