Barcelona has a Mediterranean climate, with hot summers and mild winters. It procures plenty of sun most of the year and rainy days are few. There are not many days with extreme temperatures, hot or cold, so the annual average of Barcelona is moderate, typical of a mild Mediterranean climate. The best website to check the weather is the official spanish site.
Check the Barcelona weather for the next week. That website also offers a very accurate forecast per hour for the next day.
To enjoy the atmosphere of Barcelona in summer (temperatures from 25 to 30)
In the summer months the days are hot with temperatures reaching 30 degrees and with a quite high humidity, the sun shines almost every day and the water temperature is ideal for bathing in the sea. These are the months to enjoy the beach, the beach bars along the sea, both day and night as the sea breeze is delightful at this time of year. Also noteworthy is that many hotels open their terraces on the roofs of buildings to enjoy an evening at a restaurant in good company or just to listen to pleasant music outdoors.
For the very warm people, it is advisable to come at another time of the year because the moisture in Barcelona is quite high and for people seeking tranquility and few crowds it is also better to consider another time to visit the city.
Spring is a beautiful time to visit Barcelona (temperatures of 15 ° to 25 °)
It is a very nice season to visit Barcelona, temperatures are good and the city begins to open to the outside, the streets are lined with trees at this time of the year and it is when they begin to bloom and are greener, the people after the lethargy of winter begin to invade the terraces of the bars and beach bars. It is also the season of the first music festivals and the streets start to be very lively.
Perhaps it is usually the time when it rains more in Barcelona, especially in April, but this is only a matter of luck as there have been months of April when it has not fallen even a drop of water. Accommodation prices begin to be more expensive but not as much as in summer.
The weather during autumn in Barcelona (temperatures of 21º to 13º)
The temperatures of the months of September and October are ideal for visiting the city, you can still go to the beach to sunbathe and enjoy mild temperatures without the crowds of people who come in spring and especially in summer, accommodation prices begin to decrease and you can also find more offers in the restaurants.
November is autumn but temperatures are considerably lower than the previous months, around 13 degrees, the good news is that housing prices start to drop considerably.
Outdoor activities start to dwindle and in November the temperatures are already quite cold.
Why not visiting Barcelona in winter? (Temperatures 7º to 13º)
Winter temperatures are mild and there are many sunny days, you may even enjoy the terraces of restaurants and bars, albeit with stoves!! although if the sun goes directly onto the terrace and it is not windy, stoves will not be needed. A sunny winter day is ideal for walking around the beach without encountering many people, but not for swimming. The museums and exhibitions can be visited quietly without wasting time queuing and if you come in Christmas to Barcelona this city is beautiful with its lights and Christmas markets. From early December the streets of Barcelona are decorated with lights in the evenings which brings to Barcelona a special charm. During this time the prices for accommodation are very cheap except for the end of the year.
It is the coldest time of the year and there are days that heaven can be covered, there are less outdoor activities than in other seasons.