The highest day temperature in September 2023 was 86°F. The lowest night temperature was 81°F. The average values for day and night temperatures during September were 83.4°F и 83.1°F respectivly.

The average sea surface temperature in September 2023 for Sao Nicolau was 85.4°F. The maximum and minimum values were 84.4°F and 87.2°F respectively.

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in September for Sao Nicolau is 1.8 in. It makes september the most rainy month of the year.

The average wind speed in September is 12.4 mph. It makes September one of the most windless months of the year for Sao Nicolau.

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 Sao Nicolau in September is 6.4 hours.