When you see this sentence, you are probably going to think "What a weird sentence!!" I agree, and in this blog, I will tell you what this sentence means, and I will tell you a little bit about the weather (mostly about the rain) in Sevilla.
The sentence 'the rain in Spain stays mainly in the plain' was conceived, because people were irritated by the people speaking with a Cockney accent (Cockney is a neighbourhood in London, England). People who did not have that accent or another accent were kind of irritated by the accent and that is why they came up with the sentence. The rain in Spain stays mainly in the plain. If you say this sentence repeatedly, many times, they say your accent will go away. Watch this video to see what it looked like if someone could finally pronounce the sentence in the right way!
In the video you'll hear a song from a musical which was made in 1956. The song is a turning point in the plotline of this musical. Finally, the woman in the video could say the entire sentence without making a fault. The other two guys were so happy that they started to sing along with her to the song.
In Sevilla it almost never rains, only in the northern mountains of Spain. In Sevilla everything changed when last March (2018) it was raining every day for five weeks straight. The rain just did not stop, and this weather is not typical for Sevilla in Spain. Usually it does not rain at all, maybe one day every two months. Normally everyone says that March until May is the best time to visit Sevilla, but this year, they might have been wrong.
However, the Sevillians also came up with their own version of 'the rain in Spain stays mainly in the plain'. 'La lluvia en Sevilla es una maravilla', which literally means that the rain in Seville is wonderful. Many people see Seville in sunny weather, but not many can say they have seen Sevilla in the rain. So don't feel bad if you're visiting a rainy Sevilla; you're actually getting a glimpse of this hot and dry city in a unique state!