Ballycastle — Water Temperature in June

Water Temperature Range

9°C

minimum

12°C

average

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

June: Climate and Swimming Opportunities

Average Night Air Temperature

10°C

Average Day Air Temperature

17°C

Precipitation Amount per Month

72 mm

Number of Rainy Days

Daylight per Day

17 hrs

Sunshine per Day

5 hrs

Average Wind Speed

16 km/h

Average Humidity

85%

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.