The highest day temperature in September 2026 was 82°F. The lowest night temperature was 51°F. The average values for day and night temperatures during September were 64.6°F и 59.7°F respectivly.

The average sea surface temperature in September 2026 for Old Orchard Beach was 62.5°F. The maximum and minimum values were 57.2°F and 66.4°F respectively.

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

Precipitation total in September for Old Orchard Beach is 0.9 in.

The average wind speed in September is 8.1 mph. It makes September one of the most windless months of the year for Old Orchard Beach.

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 Old Orchard Beach in September is 7.1 hours.