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Averages for Lisbon in May

May brings very pleasant warm temperatures to Lisbon.

The average temperature reaches up to around 22°C (that's about 72°F), and dips now lower than 13°C (about 55°F) in the evenings.

The average monthly rain is only around 39mm and there is about 9 hours of average daily sunshine.

The average sea temperature is about 17°C (about 62°F), so you can head to the nearby beaches to top up your or try your hand at surfing.

The Parque das Naçoes, also known as Lisbon Nations Park, is situated around the River Tagus and houses the Oceanário de Lisboa.

This Oceanarium contains a huge range of sea life as well as a lifesize exhibit of extinct sea creatures.

There are also backstage tours explaining about the conservation work and care of sea animals.

The Planetarium features regular sky shows projected on to the massive domed roof. There are also diagrams and models of the entire solar system.

Tennis enthusiasts can head to the Estoril Open to cheer on some of the world's most famous players as they compete.

The Book Fair (Feira do Livro) is held in Eduardo VII Park and features discussions, readings and presentations, as well as book sales and the chance to meet some prominent authors.