Monthly weather forecast and Climate
Lisbon, Portugal PT

Warmest month (with highest average high temperature) is August (82.9°F).
Month with lowest average high temperature is January (58.6°F).

Month with highest average low temperature is August (65.5°F).
Coldest month (with lowest average low temperature) is January (46.9°F).

Wettest months (with highest rainfall) are November and December (5").
Driest months (with lowest rainfall) are July and August (0.2").

Months with highest number of rainy days are January, February and December (14 days).
Months with lowest number of rainy days are July and August (2 days).

Best months for swimming (with highest average sea temperature) are August and September (68°F).
Coldest months (with lowest average sea temperature) are January, February and March (59°F).

Months with longest days are June and July (Average daylight: 15).
Months with shortest days are January, November and December (Average daylight: 10).

Months with most sunshine are July and August (Average sunshine: 11).
Months with least sunshine are January, February, November and December (Average sunshine: 5).

Months with highest UV index are June and July (UV index 9).
Months with lowest UV index are January and December (UV index 2).