The highest day temperature in September 2025 was 90°F. The lowest night temperature was 76°F. The average values for day and night temperatures during September were 87.3°F и 79.0°F respectivly.

The average sea surface temperature in September 2025 for Cahuita was 88.5°F. The maximum and minimum values were 87.6°F and 89.4°F respectively.

Most of the days in September are gloomy but you can also expect sunny days.

Precipitation total in September for Cahuita is 3.4 in.

The average wind speed in September is 4.4 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 Cahuita in September is 4.4 hours.