Bethany Beach — Water Temperature in July

Water Temperature Range

19°C

minimum

23°C

average

26°C

maximum

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Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2025	2024	2023	2022
JUL 1	22°C	22°C	23°C	21°C
JUL 2	22°C	23°C	24°C	21°C
JUL 3	22°C	23°C	23°C	21°C
JUL 4	22°C	23°C	23°C	21°C
JUL 5	23°C	23°C	23°C	22°C
JUL 6	23°C	24°C	24°C	22°C
JUL 7	23°C	24°C	23°C	22°C
JUL 8	23°C	24°C	23°C	22°C
JUL 9	23°C	24°C	22°C	22°C
JUL 10	23°C	24°C	22°C	22°C
JUL 11	23°C	24°C	23°C	23°C
JUL 12	23°C	23°C	23°C	23°C
JUL 13	23°C	24°C	22°C	23°C
JUL 14	23°C	24°C	22°C	23°C
JUL 15	23°C	23°C	24°C	23°C
JUL 16	24°C	25°C	24°C	23°C
JUL 17	24°C	24°C	24°C	24°C
JUL 18	24°C	24°C	24°C	24°C
JUL 19	24°C	24°C	24°C	24°C
JUL 20	24°C	24°C	24°C	24°C
JUL 21	24°C	24°C	24°C	24°C
JUL 22	24°C	24°C	24°C	24°C
JUL 23	25°C	24°C	24°C	25°C
JUL 24	24°C	24°C	24°C	25°C
JUL 25	24°C	23°C	23°C	25°C
JUL 26	24°C	23°C	23°C	25°C
JUL 27	24°C	23°C	22°C	25°C
JUL 28	24°C	23°C	23°C	25°C
JUL 29	24°C	24°C	24°C	26°C
JUL 30	24°C	24°C	23°C	26°C
JUL 31	25°C	24°C	24°C	26°C

July: Climate and Swimming Opportunities

Average Night Air Temperature

20°C

Average Day Air Temperature

29°C

Precipitation Amount per Month

95 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

13 km/h

Average Humidity

75%

At such water and air temperatures, swimming is pleasant and refreshing rather than hot. After you get in, it feels comfortable, and you’ll warm up quickly when you come out.