Best time to visit Lisbon

July is the best month in Lisbon, scoring 98 out of 100, with January the weakest at 63. The 35-point spread means timing is worth planning around without being decisive. The good window runs June to September — 4 months within ten points of the best.

August is the warmest month at 23 °C and January the coolest at 14.4 °C — a 8.6 °C spread across the year. It never reaches 30 °C in an average year, which takes heat off the list of reasons to avoid any particular month.

There is a real wet season here. October to November carry the rain — up to 13 wet days in a month — while June to August drop as low as 1. That 12-day gap is the biggest single difference between a good month and a bad one in Lisbon, and it moves further than the temperature does.

The sea peaks at just 20.7 °C, which is wetsuit territory even at its warmest — a coast to look at rather than swim in. Daylight runs from 9.5 hours in winter to 14.9 in summer, enough to notice on a sightseeing itinerary.

The three strongest months are July, August, June. The one to think twice about is January. Each month below has its own page with rainfall reliability, extremes, daylight, sea temperature and crowd levels.

Lisbon month by month