Sea Temperature in Porthmadog in July

Complete information on the sea temperature range in the Celtic Sea in Porthmadog in July. Historical daily data. Climate details for July. Tips on swimming conditions and beach relaxation in Porthmadog. 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 Porthmadog in July

13°C

MINIMUN

16°C

AVERAGE

19°C

MAXIMUM

Historical Data of Water Temperature in July in Porthmadog

Water Temperature Chart for Celtic Sea in Porthmadog in July

Sea Temperature Table in Porthmadog in July Over the Past Years

Day	2024	2023	2022	Average
Jul 1	15°C	14°C	13°C	14.3°C
Jul 2	16°C	14°C	13°C	14.8°C
Jul 3	15°C	15°C	13°C	14.8°C
Jul 4	15°C	15°C	14°C	14.8°C
Jul 5	15°C	15°C	14°C	14.8°C
Jul 6	15°C	15°C	14°C	14.8°C
Jul 7	16°C	15°C	14°C	15.0°C
Jul 8	16°C	14°C	15°C	15.0°C
Jul 9	16°C	15°C	15°C	15.3°C
Jul 10	15°C	15°C	15°C	15.0°C
Jul 11	16°C	15°C	15°C	15.3°C
Jul 12	16°C	15°C	15°C	15.3°C
Jul 13	15°C	15°C	14°C	14.8°C
Jul 14	16°C	15°C	14°C	15.3°C
Jul 15	16°C	15°C	14°C	15.0°C
Jul 16	16°C	15°C	14°C	15.0°C
Jul 17	18°C	15°C	15°C	15.8°C
Jul 18	18°C	16°C	14°C	15.8°C
Jul 19	18°C	15°C	14°C	15.5°C
Jul 20	18°C	15°C	14°C	15.8°C
Jul 21	18°C	16°C	14°C	16.0°C
Jul 22	18°C	16°C	14°C	16.0°C
Jul 23	18°C	16°C	14°C	15.8°C
Jul 24	17°C	16°C	14°C	15.8°C
Jul 25	18°C	16°C	15°C	16.3°C
Jul 26	17°C	16°C	15°C	16.0°C
Jul 27	17°C	16°C	15°C	16.0°C
Jul 28	17°C	16°C	15°C	16.0°C
Jul 29	18°C	16°C	14°C	16.0°C
Jul 30	17°C	16°C	14°C	15.8°C

Porthmadog Climate and Swimming Opportunities in July

20°C

Average Day Air Temperature

13°C

Average Night Air Temperature

70 mm

Precipitation Amount per Month

12 days

Number of Rainy Days

16 hrs

Daylight
per Day

5 hrs

Sunshine
per Day

15 km/h

Average Wind Speed

84%

Average
humidity

Porthmadog lies within the Wales in United Kingdom. The average daytime temperature in Porthmadog in July is 20°C (67°F), while the nighttime average is 13°C (55°F). There are typically 12 rainy days during the month, with a total precipitation of 70 mm (2.8 inches). The daylight duration in July in Porthmadog is 16 hours, with an average of 5 hours of sunshine per day. The average wind speed in July is 15 km/h (9 mph), and the humidity level is around 84%.

The water temperature in Porthmadog in July ranges from 14°C to 16°C (57°F to 61°F). At the beginning of the month, the average temperature is around 15°C (59°F), shifting to 15°C (59°F) by mid-July and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Porthmadog for July is 15°C (59°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 Porthmadog

What is the sea temperature in Porthmadog in July?

The water temperature in the Celtic Sea in Porthmadog in July ranges from 14°C to 16°C (57°F to 61°F).

Is it possible to swim in the Celtic Sea in Porthmadog in July?

The average sea temperature in Porthmadog in July is 15°C (59°F), and the air temperature is 20°C (67°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.