This is the 1098th most frequent Catalan word.
càlid
Warm.
Here, 'càlid' is metaphorically describing the warm-hearted and friendly reception by the people.
Vaig rebre una càlida benvinguda al poble.
I received a warm welcome in the village.
In this instance, 'càlid' is used to describe the temperature of the water, which was pleasantly warm.
L'aigua de la platja era càlida a la tarda.
The water at the beach was warm in the afternoon.
In this sentence, 'càlid' is used as an adjective to describe a weather condition, indicating that it is warm or hot.