Sea Temperature in Castlerock in October

Complete information on the sea temperature range in the Irish Sea in Castlerock in October. Historical daily data. Climate details for October. 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 October

11°C

MINIMUN

13°C

AVERAGE

15°C

MAXIMUM

Historical Data of Water Temperature in October in Castlerock

Water Temperature Chart for Irish Sea in Castlerock in October

Sea Temperature Table in Castlerock in October Over the Past Years

Day	2024	2023	2022	Average
Oct 1	14°C	13°C	14°C	13.8°C
Oct 2	15°C	13°C	14°C	14.0°C
Oct 3	14°C	15°C	14°C	14.0°C
Oct 4	14°C	13°C	14°C	13.5°C
Oct 5	14°C	12°C	13°C	13.0°C
Oct 6	15°C	13°C	13°C	13.5°C
Oct 7	14°C	15°C	13°C	13.8°C
Oct 8	14°C	12°C	13°C	13.0°C
Oct 9	14°C	13°C	13°C	13.3°C
Oct 10	14°C	13°C	13°C	13.3°C
Oct 11	14°C	12°C	13°C	13.3°C
Oct 12	14°C	12°C	13°C	13.3°C
Oct 13	14°C	15°C	13°C	13.8°C
Oct 14	13°C	15°C	13°C	13.5°C
Oct 15	14°C	14°C	13°C	13.5°C
Oct 16	14°C	12°C	13°C	13.0°C
Oct 17	14°C	13°C	13°C	13.3°C
Oct 18	14°C	14°C	13°C	13.5°C
Oct 19	14°C	13°C	13°C	13.3°C
Oct 20	14°C	14°C	13°C	13.5°C
Oct 21	14°C	13°C	13°C	13.3°C
Oct 22	14°C	12°C	13°C	13.0°C
Oct 23	13°C	13°C	13°C	13.0°C
Oct 24	14°C	15°C	13°C	13.8°C
Oct 25	13°C	15°C	13°C	13.5°C
Oct 26	13°C	13°C	13°C	13.0°C
Oct 27	14°C	12°C	13°C	13.0°C
Oct 28	14°C	14°C	13°C	13.3°C
Oct 29	14°C	15°C	13°C	13.5°C
Oct 30	14°C	14°C	13°C	13.3°C

Castlerock Climate and Swimming Opportunities in October

13°C

Average Day Air Temperature

8°C

Average Night Air Temperature

130 mm

Precipitation Amount per Month

18 days

Number of Rainy Days

10 hrs

Daylight
per Day

2 hrs

Sunshine
per Day

21 km/h

Average Wind Speed

90%

Average
humidity

Castlerock lies within the Northen Ireland in United Kingdom. The average daytime temperature in Castlerock in October is 13°C (56°F), while the nighttime average is 8°C (46°F). There are typically 18 rainy days during the month, with a total precipitation of 130 mm (5.1 inches). The daylight duration in October in Castlerock is 10 hours, with an average of 2 hours of sunshine per day. The average wind speed in October is 21 km/h (13 mph), and the humidity level is around 90%.

The water temperature in Castlerock in October ranges from 13°C to 14°C (55°F to 57°F). At the beginning of the month, the average temperature is around 14°C (57°F), shifting to 13°C (55°F) by mid-October and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in Castlerock for October is 13°C (55°F). The water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.

Sea Temperature in October in Nearby Cities

Frequently Asked Questions About Water Temperatures in October in Castlerock

What is the sea temperature in Castlerock in October?

The water temperature in the Irish Sea in Castlerock in October ranges from 13°C to 14°C (55°F to 57°F).

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

The average sea temperature in Castlerock in October is 13°C (55°F), and the air temperature is 13°C (56°F), so the water is cool, but many swimmers can tolerate it, especially with the sun out. Acclimatization is helpful.