Hay nubes.
Ay NOO-bes
There are clouds.
Simple
Está parcialmente nublado con momentos de sol.
Es-TAH par-syal-MEN-teh noo-BLAH-doh kon mo-MEN-tos de sol
It is partly cloudy with moments of sun.
Natural description
Hay nubes y claros, el sol se asoma de vez en cuando.
Ay NOO-bes ee KLAH-ros, el sol seh ah-SO-ma de ves en KWAN-doh
There are clouds and clearings, the sun peeks out now and then.
claros = sunny breaks; asomarse = to peek/appear
More Spanish Weather Phrases