Bethany Beach — Water Temperature in October

Water Temperature Range

14°C

minimum

19°C

average

23°C

maximum

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

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

October: Climate and Swimming Opportunities

Average Night Air Temperature

9°C

Average Day Air Temperature

20°C

Precipitation Amount per Month

88 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

7 hrs

Average Wind Speed

15 km/h

Average Humidity

75%

At such water and air temperatures, swimming feels cool and invigorating. It’s comfortable for a quick dip, and you’ll feel fine as long as you warm up soon after.