Assateague Island — Water Temperature in July

Water Temperature Range

21°C

minimum

25°C

average

28°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	23°C	23°C	23°C	23°C
JUL 2	23°C	23°C	23°C	23°C
JUL 3	23°C	23°C	22°C	23°C
JUL 4	24°C	24°C	24°C	23°C
JUL 5	23°C	23°C	23°C	23°C
JUL 6	24°C	24°C	24°C	24°C
JUL 7	24°C	24°C	24°C	24°C
JUL 8	24°C	24°C	23°C	24°C
JUL 9	23°C	23°C	22°C	24°C
JUL 10	24°C	24°C	23°C	24°C
JUL 11	24°C	24°C	23°C	24°C
JUL 12	24°C	24°C	23°C	25°C
JUL 13	24°C	24°C	23°C	25°C
JUL 14	25°C	25°C	24°C	25°C
JUL 15	25°C	25°C	24°C	25°C
JUL 16	24°C	24°C	23°C	25°C
JUL 17	25°C	25°C	25°C	25°C
JUL 18	25°C	25°C	24°C	26°C
JUL 19	26°C	26°C	25°C	26°C
JUL 20	25°C	25°C	24°C	26°C
JUL 21	25°C	25°C	24°C	26°C
JUL 22	25°C	25°C	24°C	26°C
JUL 23	26°C	26°C	25°C	26°C
JUL 24	26°C	26°C	24°C	27°C
JUL 25	26°C	26°C	25°C	27°C
JUL 26	25°C	25°C	23°C	27°C
JUL 27	25°C	25°C	23°C	27°C
JUL 28	26°C	26°C	24°C	27°C
JUL 29	26°C	26°C	24°C	27°C
JUL 30	26°C	26°C	24°C	28°C
JUL 31	27°C	27°C	25°C	28°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 feels truly comfortable and relaxing. The warm water won’t cool you down, so you can stay in for a long time without getting chilled.