Spanish vocabulary · Beginner

Monday in Spanish: Lunes and the Lowercase Days of the Week

Lunes · noun (masculine) · LOO-nehs

Monday in Spanish is lunes, written in lowercase like all Spanish days of the week. It's a masculine noun (el lunes) and stays the same in singular and plural: el lunes for this Monday, los lunes for every Monday. Lunes derives from luna (moon).

Lunes is LOO-nehs, two syllables, stress on LOO. The u is a clean oo sound; the e is short and pure, closer to the e in bed.

El lunes empieza el curso.

The class starts on Monday.

Monday in Spanish: Quick Reference

Below are the most common Spanish words for monday, with pronunciation and regional usage notes.

SpanishEnglishPronunciationRegion / Register
lunesmondayLOO-nehsDefault, widely understood
el lunesmondaythis/next Monday
los lunesmondayevery Monday / on Mondays

How Native Speakers Use Lunes

Real example sentences across three contexts you'll actually run into.

On a specific Monday

Tenemos reunión el lunes.

We have a meeting on Monday.

Use el lunes (no preposition) for on Monday. Spanish doesn't say en lunes.

Every Monday

Los lunes voy al gimnasio.

On Mondays I go to the gym.

Los lunes for habitual or recurring action. Same word lunes serves singular and plural.

Looking ahead

Hasta el lunes que viene.

See you next Monday.

Que viene means coming. El lunes que viene is the natural way to say next Monday.

Avoid These Mistakes When Using Lunes

Capitalizing days of the week

Incorrect: Tengo clase el Lunes.

Correct: Tengo clase el lunes.

Spanish writes days of the week in lowercase, unlike English. Lunes, martes, miércoles, never capitalized except at the start of a sentence.

Adding a preposition like en or on

Incorrect: En lunes tengo cita.

Correct: El lunes tengo cita.

Spanish uses the article el (or los for habitual) without a preposition. Adding en or a is a common English transfer error.

Lock in Monday Vocabulary with the Parrot Method

Why word lists alone don't stick

Memorizing a translation feels productive, but most learners forget 70% of what they studied within 48 hours. Vocabulary needs spaced repetition AND real-world exposure to transfer to long-term memory.

See Lunes used by native speakers

Parrot's short-form videos feature native speakers using lunes in real situations. Context-based exposure beats flashcards, you hear El lunes empieza el curso. while watching someone live the moment, connecting meaning, sound, and rhythm at once.

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Common Questions About Monday in Spanish

How do you say Monday in Spanish?
Monday in Spanish is lunes, written in lowercase. It's masculine: el lunes. Singular and plural look the same: el lunes for this Monday, los lunes for every Monday or on Mondays.
How do you pronounce lunes?
Lunes is LOO-nehs, two short syllables, stress on LOO. The u is a clean oo (like in moon), and the e is short and pure (like the e in bed). Spanish vowels don't glide.
Why is lunes always lowercase?
Spanish writes days of the week, months, and seasons in lowercase, unlike English. The only time you capitalize lunes is at the start of a sentence.
Where does the word lunes come from?
Lunes comes from Latin dies Lunae, meaning day of the moon. The Spanish days of the week are mostly named after planets and Roman gods: lunes (moon), martes (Mars), miércoles (Mercury), jueves (Jupiter), viernes (Venus), sábado (Sabbath), domingo (Lord's day).