Bethany Beach Weather Forecast
Todays weather and what to expect for the next 3 days, along with average monthly temperatures for Bethany Beach, DE.
Average Monthly Temperatures

The air temperature in Bethany Beach, Delaware peaks in late July, while January through early March is known for its cold and windy temps.
Average Water Temperatures

The average ocean temperature in Bethany Beach. Temperatures gradually rise from spring to summer and fall from late summer to winter, with the warmest swimming months being July and August.
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Summer Temperatures in Bethany Beach
Bethany Beach is the perfect vacation spot, boasting beautiful weather in spring, summer, and fall. During the summer months, you can expect warm and humid days, making it an ideal time for beach fun. With average daily temperatures ranging from the low to mid-80s°, it’s a fantastic getaway. Daily highs average in the low to mid-80s° and rarely exceed 90°.
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Spring Temperatures in Bethany Beach
Spring in Bethany Beach, Delaware, features a significant warming trend from March to May, transitioning from chilly to mild, comfortable weather by the end of the season. Temperatures gradually increase throughout the spring months. Expect daily temperatures to climb into the mid-60s°F during the day, with nighttime lows settling around the mid-40s°F. As we move into May, we’ll see temperatures warm up significantly, reaching into the mid-70s°F by day and dropping to the low to mid-50s°F at night, giving us a taste of summer.
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Fall Temperatures in Bethany Beach
In September, you can expect warm and pleasant conditions, with average highs hovering around 75° and lows in the 60s°. The ocean remains warm in September, making it perfect for swimming. The average high temperature gradually declines from the mid-70s in September to around the mid-50s by late November, while the nighttime lows start to drop significantly.







