The highest day temperature in September 2026 was 84°F. The lowest night temperature was 80°F. The average values for day and night temperatures during September were 83.1°F и 81.6°F respectivly.

The average sea surface temperature in September 2026 for Olinda was 85.0°F. The maximum and minimum values were 84.2°F and 85.8°F respectively.

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

Precipitation total in September for Olinda is 0.9 in. It makes september one of the least rainy months of the year.

The average wind speed in September is 11.2 mph. It makes September the most windy month of the year for Olinda.

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 Olinda in September is 4.6 hours.