Sea Temperature in Castlerock in June

Complete information on the sea temperature range in the Irish Sea in Castlerock in June. Historical daily data. Climate details for June. Tips on swimming conditions and beach relaxation in Castlerock. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Castlerock in June

9°C

MINIMUN

12°C

AVERAGE

15°C

MAXIMUM

Historical Data of Water Temperature in June in Castlerock

Water Temperature Chart for Irish Sea in Castlerock in June

Sea Temperature Table in Castlerock in June Over the Past Years

Day	2024	2023	2022	Average
Jun 1	10°C	10°C	11°C	10.3°C
Jun 2	11°C	10°C	11°C	10.5°C
Jun 3	11°C	10°C	12°C	10.8°C
Jun 4	11°C	10°C	12°C	11.0°C
Jun 5	11°C	10°C	12°C	11.3°C
Jun 6	11°C	10°C	12°C	11.3°C
Jun 7	12°C	11°C	12°C	11.8°C
Jun 8	12°C	11°C	12°C	11.8°C
Jun 9	11°C	11°C	12°C	11.3°C
Jun 10	12°C	11°C	12°C	11.8°C
Jun 11	12°C	11°C	12°C	11.8°C
Jun 12	12°C	11°C	12°C	11.8°C
Jun 13	12°C	12°C	12°C	11.8°C
Jun 14	12°C	12°C	12°C	11.8°C
Jun 15	12°C	12°C	13°C	12.0°C
Jun 16	13°C	12°C	13°C	12.5°C
Jun 17	12°C	12°C	13°C	12.0°C
Jun 18	12°C	12°C	12°C	11.8°C
Jun 19	12°C	13°C	12°C	12.0°C
Jun 20	12°C	13°C	13°C	12.3°C
Jun 21	12°C	13°C	13°C	12.5°C
Jun 22	12°C	13°C	13°C	12.5°C
Jun 23	12°C	13°C	13°C	12.5°C
Jun 24	12°C	13°C	13°C	12.5°C
Jun 25	12°C	14°C	13°C	12.8°C
Jun 26	12°C	14°C	13°C	12.8°C
Jun 27	12°C	14°C	13°C	12.8°C
Jun 28	12°C	14°C	13°C	12.8°C
Jun 29	12°C	14°C	13°C	12.8°C

Castlerock Climate and Swimming Opportunities in June

17°C

Average Day Air Temperature

10°C

Average Night Air Temperature

72 mm

Precipitation Amount per Month

14 days

Number of Rainy Days

17 hrs

Daylight
per Day

5 hrs

Sunshine
per Day

16 km/h

Average Wind Speed

85%

Average
humidity

Castlerock lies within the Northen Ireland in United Kingdom. The average daytime temperature in Castlerock in June is 17°C (62°F), while the nighttime average is 10°C (49°F). There are typically 14 rainy days during the month, with a total precipitation of 72 mm (2.8 inches). The daylight duration in June in Castlerock is 17 hours, with an average of 5 hours of sunshine per day. The average wind speed in June is 16 km/h (10 mph), and the humidity level is around 85%.

The water temperature in Castlerock in June ranges from 10°C to 12°C (50°F to 54°F). At the beginning of the month, the average temperature is around 11°C (52°F), shifting to 12°C (54°F) by mid-June and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in Castlerock for June is 12°C (54°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in June in Nearby Cities

Frequently Asked Questions About Water Temperatures in June in Castlerock

What is the sea temperature in Castlerock in June?

The water temperature in the Irish Sea in Castlerock in June ranges from 10°C to 12°C (50°F to 54°F).

Is it possible to swim in the Irish Sea in Castlerock in June?

The average sea temperature in Castlerock in June is 12°C (54°F), and the air temperature is 17°C (62°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.