The highest day temperature in June 2026 was 91°F. The lowest night temperature was 58°F. The average values for day and night temperatures during June were 77.3°F и 69.1°F respectivly.

The average sea surface temperature in June 2026 for Bethany Beach was 70.2°F. The maximum and minimum values were 63.8°F and 74.4°F respectively.

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

Precipitation total in June for Bethany Beach is 0.9 in. It makes june one of the least rainy months of the year.

The average wind speed in June is 10.2 mph. It makes June 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 June is 9.4 hours.