The highest day temperature in September 2025 was 90°F. The lowest night temperature was 73°F. The average values for day and night temperatures during September were 85.0°F и 77.8°F respectivly.

The average sea surface temperature in September 2025 for Pissouri was 83.1°F. The maximum and minimum values were 81.2°F and 84.6°F respectively.

Almost all days in September are sunny. There is very low probability of clouds or gloomy days.

Precipitation total in September for Pissouri is 0.1 in. It makes september one of the least rainy months of the year.

The average wind speed in September is 8.3 mph. It makes September one of the most windless months of the year for Pissouri.

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 Pissouri in September is 11.6 hours.