The weather in Culebra is consistent, with only minor changes in temperature annually. The average daytime temperature on Culebra Island throughout the year is 84º to 88º Fahrenheit, increasing slightly in the summer. Temperatures at night are approximately 8º to 10ºF lower.
|Monthly Average Temperature in Culebra, Puerto Rico|
Water temperatures vary between 74º to 80ºF, making swimming, snorkeling, surfing, paddleboarding and diving enjoyable year round. August through late October is rainy season, which can bring high winds and heavy rains, however that does not mean there will be rain, just the possibility of it. You can have 3 days of rain followed by 5 days of Sunshine and clear skies, its up to mother nature.