The highest day temperature in May 2025 was 94°F. The lowest night temperature was 72°F. The average values for day and night temperatures during May were 90.1°F и 76.8°F respectivly.

The average sea surface temperature in May 2025 for Santiago de Cuba was 87.1°F. The maximum and minimum values were 84.6°F and 89.6°F respectively.

Most of the days in May are cloudy but you can also expect sunny or gloomy days.

Precipitation total in May for Santiago de Cuba is 3.4 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 4.6 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Santiago de Cuba in May is 8.4 hours.