En resumen (the short version)
- Each Spanish vowel has one sound, wherever it is in a word. Learn five and you can read any Spanish word out loud.
- Keep every vowel short and pure: your mouth shouldn't move while you're saying it.
- A, e and o are "strong" vowels, and i and u are "weak". That tells you when two vowels share a syllable and when they split.
¡Hola aventurero!
Ask a child in Spain to say the vowels and you'll get a, e, i, o, u in one breath. Five letters, five sounds. Y ya está (and that's it).
English has the same five letters but lots more vowel sounds, so your mouth wants to add a few extras when you speak Spanish 😅
That's what this post is about: a e i o u Spanish pronunciation. How to make each sound, how to keep it pure, and what happens when two vowels meet. Five small sounds, and your Spanish gets a lot easier to understand.
Five letters, five sounds
In English, the letter a sounds different in "cat", "car", "cake" and "about". In Spanish, a always sounds like a. The same goes for the other four.
That's very good news. Once you know these five sounds, you can read any Spanish word out loud, even one you've never seen before. Otorrinolaringólogo (ear, nose and throat doctor)? Just say what you see. And murciélago (bat) even has all five vowels in one word.
How to make each vowel
Teacher bit 🤓 Every vowel is a mix of two things: where your tongue is, and what your lips are doing.
| Vowel | Tongue | Lips | Close to the English… | Words to practise |
|---|---|---|---|---|
| a | Low and flat, mouth open | Relaxed | "a" in "father", but shorter | casa, mapa, cama |
| e | In the middle | Slightly spread | "e" in "pet" | mesa, verde, tener |
| i | High and at the front | Spread, like a small smile | "ee" in "see", but shorter | sí, vino, chico |
| o | In the middle, towards the back | Rounded | "o" in "pot", with rounder lips | todo, como, foto |
| u | High and at the back | Very round, pushed forward | "oo" in "food", but shorter | uno, luna, mucho |
Teachers often draw the vowels as a triangle. I and u sit at the top, because your tongue is high. A sits at the bottom, because your mouth is wide open. E and o are halfway down each side. Picture it while you practise, and you'll feel your mouth move around the triangle: i, e, a, o, u.
Keep them short and pure
Here's the big one. Lots of English vowels slide into another sound before they finish. Say "go" slowly and your lips close into a little "oo" at the end. Say "pay" and there's a small "ee" on the end.
Spanish vowels don't do that. Your mouth gets into position, makes the sound and stops. Nothing moves until the vowel's finished.
| Spanish | Meaning | Don't let it become |
|---|---|---|
| yo | I | "yoh-oo" |
| dos | two | "dose" |
| té | tea | "tay" |
| pero | but | "pay-roh" |
| solo | only | "so-low" |
For the last two, listen to a Spanish speaker. Pero is two short, clean sounds, pe-ro, with nothing extra in between.
Hold a vowel for three seconds on one note, like a singer: ooooo. Your lips shouldn't move at all. Then say it short: o. Same mouth, just shorter. Do the same with e, then say dos, té and yo with that same still mouth. A mirror helps: if your lips move at the end, the vowel slid.
There's another English habit that changes vowels: squashing the ones you don't stress into a quick "uh". That one's covered in 5 Spanish pronunciation mistakes English speakers make.
Strong and weak vowels
When two vowels sit side by side, how do you know if they share a syllable? Spanish has a neat rule for this. Split the vowels into two teams:
- Strong: a, e, o
- Weak: i, u
Then it's simple:
| What meets | Examples | Syllables |
|---|---|---|
| A weak and a strong vowel | bien, cuatro, aire, euro | One: bien, cua-tro, ai-re, eu-ro |
| Two weak vowels | ciudad, fui, muy | One: ciu-dad, fui, muy |
| Two strong vowels | leer, poeta, maestro | Two: le-er, po-e-ta, ma-es-tro |
| A weak vowel with a written accent | día, país, frío | Two: dí-a, pa-ís, frí-o |
When vowels share a syllable, you still say both. They just glide quickly into each other: bien is one quick syllable, not "bee-en".
And look at the last row. That's why país needs its accent. Without it, the a and i would glide together, like in aire. The accent makes the i strong, so it gets its own syllable: pa-ís.
Quick extra: at the end of a word, y sounds like i. So muy is just mui, and hoy and estoy end in the same oi glide.
One vowel can change the word
Because Spanish only has five vowels, each one carries a lot of weight. Change one and you can end up with a completely different word:
| Word | Meaning | Word | Meaning |
|---|---|---|---|
| vaso | glass | beso | kiss |
| mano | hand | mono | monkey |
| taza | mug | tiza | chalk |
| dedo | finger | dado | dice |
| pasta | pasta | pista | track / clue |
In Spanish, b and v sound the same, so only the vowels separate vaso and beso. ¿Me pones un vaso de agua? gets you a glass of water. ¿Me pones un beso de agua? gets you a very strange look 🙈
Practise with a children's song
Children in Spain practise their vowels with a traditional song called La mar estaba serena (The sea was calm). You sing the line normally, then again and again, swapping every vowel for the same one each time:
- La mar estaba serena, serena estaba la mar.
- With a: La mar astaba sarana, sarana astaba la mar.
- With e: Le mer estebe serene, serene estebe le mer.
- With i: Li mir istibi sirini, sirini istibi li mir.
- With o: Lo mor ostobo sorono, sorono ostobo lo mor.
- With u: Lu mur ustubu surunu, surunu ustubu lu mur.
It works because you keep one mouth shape for a whole line, so you notice straight away when a vowel starts to slide. And it's silly, which helps 😄 Your e and o lines are the ones to listen to most carefully.
Your vowel plan for this week
Pick the vowel that feels least natural
Read the words in the "How to make the five Spanish vowels" table out loud and choose the vowel that feels strangest. For a lot of English speakers, it's e or o.
Hold it, then say it
Hold that vowel for three seconds without moving your lips, then say three words with it, like todo, como and foto for o.
Sing La mar estaba serena
Once a day, sing La mar estaba serena, serena estaba la mar six times: once normally, then once with each vowel.
Record the vowel pairs
Record yourself saying pairs like vaso and beso, or mano and mono, then listen back. If you can't tell which word you said, that vowel needs a bit more work.
The tricky part is that your ears are trained on English, so a vowel that slides can still sound fine to you. Once your vowels feel steady, the next sound most people want to work on is the Spanish RR.
Recap ✨
- Spanish has five vowels, and each letter always makes the same sound.
- Keep vowels short and pure: your lips and tongue shouldn't move while you say one.
- A, e and o are strong, i and u are weak. A weak and a strong vowel share a syllable (bien), two strong vowels split (le-er), and an accent splits a weak vowel off (dí-a).
- Changing one vowel can change the word: vaso (glass) and beso (kiss).
- Practise by holding each vowel like a singer, and by singing La mar estaba serena with all five vowels.
If you'd like me to listen to your vowels and tell you which one to work on first, book a 1:1 session with me. We'll go through the vowel pairs together until you can hear the difference yourself ☕
Now I'm curious 👀 Which vowel feels hardest for you? And can you sing the i version of La mar estaba serena without laughing? Cuéntame in the comments!
¡Un abrazo!
Lucía ☕
Lucía · Linguist, translator, Spanish teacher and author of the Visual Spanish Grammar Book.
Come and learn Spanish with me and other aventureros like yourself at skool.com/learnspanish 🎉