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Sea Temperature in Castlerock in July
Complete information on the sea temperature range in the Irish Sea in Castlerock in July. Historical daily data. Climate details for July. 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 July
11°C
MINIMUN
13.5°C
AVERAGE
16°C
MAXIMUM
Historical Data of Water Temperature in July in Castlerock
Water Temperature Chart for Irish Sea in Castlerock in July
Sea Temperature Table in Castlerock in July Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Jul 1 | 12°C | 12°C | 12°C | 12.0°C |
| Jul 2 | 13°C | 12°C | 13°C | 12.5°C |
| Jul 3 | 12°C | 12°C | 13°C | 12.3°C |
| Jul 4 | 13°C | 12°C | 12°C | 12.3°C |
| Jul 5 | 13°C | 12°C | 12°C | 12.3°C |
| Jul 6 | 13°C | 12°C | 13°C | 12.5°C |
| Jul 7 | 13°C | 13°C | 13°C | 12.8°C |
| Jul 8 | 12°C | 13°C | 13°C | 12.5°C |
| Jul 9 | 13°C | 13°C | 13°C | 12.8°C |
| Jul 10 | 13°C | 13°C | 13°C | 13.0°C |
| Jul 11 | 14°C | 13°C | 13°C | 13.3°C |
| Jul 12 | 14°C | 13°C | 13°C | 13.3°C |
| Jul 13 | 14°C | 14°C | 14°C | 13.5°C |
| Jul 14 | 14°C | 14°C | 14°C | 13.8°C |
| Jul 15 | 14°C | 14°C | 14°C | 13.8°C |
| Jul 16 | 13°C | 14°C | 14°C | 13.5°C |
| Jul 17 | 14°C | 14°C | 14°C | 13.8°C |
| Jul 18 | 13°C | 14°C | 13°C | 13.3°C |
| Jul 19 | 14°C | 15°C | 13°C | 13.8°C |
| Jul 20 | 13°C | 15°C | 14°C | 13.8°C |
| Jul 21 | 14°C | 15°C | 14°C | 14.0°C |
| Jul 22 | 14°C | 15°C | 14°C | 14.0°C |
| Jul 23 | 15°C | 15°C | 14°C | 14.3°C |
| Jul 24 | 15°C | 15°C | 14°C | 14.3°C |
| Jul 25 | 14°C | 16°C | 14°C | 14.3°C |
| Jul 26 | 14°C | 16°C | 14°C | 14.3°C |
| Jul 27 | 14°C | 16°C | 14°C | 14.3°C |
| Jul 28 | 14°C | 16°C | 14°C | 14.3°C |
| Jul 29 | 14°C | 16°C | 14°C | 14.3°C |
| Jul 30 | 14°C | 16°C | 14°C | 14.3°C |
Castlerock Climate and Swimming Opportunities in July
18°C
Average Day Air Temperature
11°C
Average Night Air Temperature
82 mm
Precipitation Amount per Month
16 days
Number of Rainy Days
17 hrs
Daylight
per Day
4 hrs
Sunshine
per Day
16 km/h
Average Wind Speed
87%
Average
humidity
Castlerock lies within the Northen Ireland in United Kingdom. The average daytime temperature in Castlerock in July is 18°C (65°F), while the nighttime average is 11°C (53°F). There are typically 16 rainy days during the month, with a total precipitation of 82 mm (3.2 inches). The daylight duration in July in Castlerock is 17 hours, with an average of 4 hours of sunshine per day. The average wind speed in July is 16 km/h (10 mph), and the humidity level is around 87%.
The water temperature in Castlerock in July ranges from 12°C to 14°C (54°F to 57°F). At the beginning of the month, the average temperature is around 12°C (54°F), shifting to 13°C (55°F) by mid-July and reaching 14°C (57°F) in the last ten days. Overall, the average sea temperature in Castlerock for July is 13°C (55°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.
Sea Temperature in July in Nearby Cities
Frequently Asked Questions About Water Temperatures in July in Castlerock
What is the sea temperature in Castlerock in July?
The water temperature in the Irish Sea in Castlerock in July ranges from 12°C to 14°C (54°F to 57°F).
Is it possible to swim in the Irish Sea in Castlerock in July?
The average sea temperature in Castlerock in July is 13°C (55°F), and the air temperature is 18°C (65°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.