How to Say "damp spot" in Spanish
The Spanish word for “damp spot” is “humedad” — B1 level.
English → SpanishB1
nounB1
a stain on a wall or ceiling

Examples
Ha salido una humedad en el techo del baño.
A damp spot has appeared on the bathroom ceiling.
Este apartamento tiene muchos problemas de humedad.
This apartment has many dampness problems.
Tenemos que arreglar las humedades antes de pintar.
We have to fix the damp spots before painting.
Countable vs. Uncountable
When referring to the general concept of moisture, it is uncountable. However, when referring to specific stains on a wall, it becomes countable (e.g., 'tengo tres humedades').
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