What’s the weather like in Barcelona in September?
September falls within summer in Barcelona, which means temperatures are high and there’s consistent sunshine on a daily basis. Since the weather begins to cool down in September, it’s a very enjoyable time to visit for less humidity and a cooler climate.
Barcelona weather in September is very warm and sunny with minimal rainfall. The city enjoys a Mediterranean climate from its location in the Costa Brava region on the northeast coast of Spain. Conflicting winds are a regular occurrence because the city is perched on a slightly elevated plateau. This makes weather fluctuations quite common and difficult to predict. However, you’re likely to have plenty of warm sunshine throughout the month with rain being more common towards October.
Temperatures range from 17°C to 26°C with at least nine to 11 hours of warm sunshine per day. This is slightly less than last month, but you’ll still have plenty of time to explore the city and enjoy your time in Barcelona. Rain is more likely towards the end of the month with 40mm of rainfall spread across nine days. Humidity is comfortable and rarely drops below 57%. Winds travel at around 7mph but are known to reach speeds of up to 14mph on windy days. The sea is warm at 24°C, which is great for swimming or taking part in water sports.