The highest day temperature in September 2026 was 91°F. The lowest night temperature was 61°F. The average values for day and night temperatures during September were 81.3°F и 74.3°F respectivly.

The average sea surface temperature in September 2026 for Polychrono was 82.1°F. The maximum and minimum values were 77.6°F and 85.0°F respectively.

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

Precipitation total in September for Polychrono is 1.2 in.

The average wind speed in September is 7.2 mph.

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 Polychrono in September is 10.3 hours.