Lisbon Weather by Month for Cruise Passengers

Lisbon has one of the mildest climates of any European capital: frost essentially never happens, and even the wettest months have plenty of dry days. For a cruise passenger, though, the averages hide what actually shapes a port day: heat on the hills in summer, short afternoons and rain showers in winter, and polished cobbles in every season.

The climate figures below are the official 1991–2020 climate normals published by IPMA, Portugal's national weather service, for the Lisboa/Instituto Geofísico station, which sits in the city centre. Sunset times are approximate for the middle of each month. Everything else is practical advice on what those numbers mean for a few hours ashore.

Lisbon month by month

Spring (March to May): the best all-round months

Highs of 19–23 °C are ideal walking weather for the hills of Alfama and the climb to the castle. Rain is still possible, with about 8 rain days a month in March and April, but showers tend to pass quickly. Daylight is long once the clocks go forward at the end of March, with sunset after 20:00 from April.

The trade-off is company: spring is one of the busiest periods for cruise calls in Lisbon (see the cruise season section below). Carry a light waterproof layer; it will probably stay in your bag.

Summer (June to August): plan around the heat

July and August are almost completely dry, with average highs of 28–29 °C. The average hides the hot days: IPMA counts an average of 8.5 days in July and 10.2 in August with highs of 30 °C or more, and a couple of days each summer month above 35 °C. The city's record, 43.3 °C, was set in August 2018. On those days, climbing from the river to the castle at midday is genuinely draining.

A heat strategy that works on a port day:

• anchorDo the hills first. Get off the ship early and do Alfama and the viewpoints before 11:00; the viewpoints route is almost all downhill if you ride to the top.
• anchorPut indoor sights in the middle of the day: the tile museum, the Oceanário, the cloisters of Jerónimos or a long lunch.
• anchorUse transport for the climbs. A tuk-tuk or taxi up the hill costs less than an afternoon lost to heat exhaustion.
• anchorCarry water and refill it. Cafés will usually sell a bottle for little; the cheapest is a supermarket in the Baixa.
• anchorSun protection: hat and sunscreen. Pale limestone streets reflect the light, so it feels hotter than the thermometer says.

Autumn (September to November): warm, then wet

September is often the sweet spot: highs still around 27 °C, only about 4 rain days, and sunset around 19:45. October keeps warm days (about 23 °C highs) but is the month the rain returns, with 111 mm on average. November is the wettest month of the year (134 mm, about 10 rain days) and the afternoons are short: sunset is around 17:25 once the clocks go back.

In autumn, check the forecast the night before and keep a plan B. Our rainy day guide lists the indoor options closest to the terminal.

Winter (December to February): what changes

Winter in Lisbon is mild rather than cold, with highs around 15 °C and lows around 9 °C, but it is wet and the days are short. Expect about 10 rain days in December and January, and sunset before 18:00.

Opening hours shrink too. The Castelo de São Jorge, for example, closes at 18:00 from November to February (last entry 17:30), against 21:00 from March to October, and it is closed on 1 January and 24, 25 and 31 December. Most national monuments, including Jerónimos Monastery, close on Mondays all year. On a winter call, check the hours of anything you plan to visit, and plan for the light going in the late afternoon.

The upside: fewer people at the viewpoints, shorter queues, and clear winter days can be the crispest light of the year.

What to wear, in any month

• anchorShoes with grip. Lisbon's calçada (limestone cobbles) is polished smooth by foot traffic and is slippery even when dry. After rain it is treacherous, especially downhill. Trainers with a rubber tread are better than sandals or leather soles.
• anchorLayers. A breeze off the river can make a 20 °C day feel cool in the shade, and Alfama's narrow lanes are much cooler than the open squares.
• anchorA compact umbrella or waterproof from October to April. Umbrellas and steep, narrow streets do not mix well in wind; a hooded jacket is often easier.
• anchorA small bag worn in front. Not weather-related, but crowded trams and viewpoints are where pickpockets work. See our money and safety guide.

The Lisbon cruise season: when is it busiest?

Lisbon receives ships all year, and the busiest months for ship calls are not necessarily the hottest. According to the Port of Lisbon (APL), April 2025 saw 55 cruise calls, a record for that month, while the record-breaking August of 2026 had 33 calls and 86,322 passengers. In the first eight months of 2026, the port handled 220 calls and 448,037 passengers.

Across 2025 as a whole, APL counted about 499,000 transit passengers (people on a port call, like most readers of this guide) and a record 206,226 passengers starting or ending their cruise in Lisbon. Of the European passengers, the UK was the largest single market.

What that means on the ground: on days with several ships in port, the Alfama viewpoints, tram 28 and Belém get noticeably busier from mid-morning. Summer adds land-based tourists on top. If your ship is one of several in port, go early, and consider starting at the less obvious end of your plan. Our cruise terminal guide covers how to get moving quickly once you are off the ship.