Seabrook — Water Temperature in August

Water Temperature Range

11°C

minimum

14°C

average

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

August: Climate and Swimming Opportunities

Average Night Air Temperature

10°C

Average Day Air Temperature

25°C

Precipitation Amount per Month

24 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

11 km/h

Average Humidity

73%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.