The highest day temperature in October 2025 was 79°F. The lowest night temperature was 47°F. The average values for day and night temperatures during October were 66.5°F и 60.0°F respectivly.

The average sea surface temperature in October 2025 for Bethany Beach was 67.7°F. The maximum and minimum values were 61.0°F and 74.8°F respectively.

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

Precipitation total in October for Bethany Beach is 1.0 in.

The average wind speed in October is 11.7 mph. It makes October one of the most windless months of the year for Bethany 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 Bethany Beach in October is 7.1 hours.