How to Say "sun" in Spanish
The Spanish word for “sun” is “sol” — A1 level. This is a very common word in everyday Spanish.

Examples
El sol brilla mucho hoy.
The sun is shining a lot today.
Vamos a la playa a tomar el sol.
Let's go to the beach to sunbathe.
Necesito gafas de sol porque la luz es muy fuerte.
I need sunglasses because the light is very strong.
Always Use 'el'
Just like in English we say 'the sun', in Spanish you almost always need to say 'el sol'. It's rare to see 'sol' by itself. For example, 'El sol es una estrella' (The sun is a star).
Sun vs. Heat
Mistake: “To say 'It's very hot,' a learner might say: 'Hace mucho sol.'”
Correction: The best way is: 'Hace mucho calor.' While 'Hace sol' means 'It's sunny,' the word for the feeling of heat is 'calor'. Use 'calor' for temperature and 'sol' for the sun itself or its light.
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