Sea Temperature in Penarth in May

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

9°C

MINIMUN

12°C

AVERAGE

15°C

MAXIMUM

Historical Data of Water Temperature in May in Penarth

Water Temperature Chart for Celtic Sea in Penarth in May

Sea Temperature Table in Penarth in May Over the Past Years

Day	2024	2023	2022	Average
May 1	10°C	10°C	11°C	10.5°C
May 2	10°C	11°C	11°C	10.8°C
May 3	10°C	10°C	10°C	10.0°C
May 4	10°C	11°C	10°C	10.5°C
May 5	10°C	11°C	12°C	10.8°C
May 6	10°C	11°C	10°C	10.5°C
May 7	10°C	11°C	12°C	11.0°C
May 8	10°C	11°C	12°C	11.0°C
May 9	10°C	11°C	11°C	10.8°C
May 10	11°C	11°C	10°C	11.0°C
May 11	11°C	11°C	10°C	11.0°C
May 12	11°C	11°C	10°C	11.0°C
May 13	11°C	11°C	13°C	11.8°C
May 14	11°C	11°C	12°C	11.5°C
May 15	11°C	11°C	10°C	11.0°C
May 16	11°C	11°C	13°C	11.8°C
May 17	11°C	12°C	12°C	12.0°C
May 18	12°C	12°C	12°C	12.3°C
May 19	12°C	12°C	11°C	11.8°C
May 20	12°C	12°C	12°C	12.3°C
May 21	11°C	12°C	12°C	12.0°C
May 22	12°C	12°C	12°C	12.3°C
May 23	12°C	12°C	12°C	12.5°C
May 24	11°C	12°C	12°C	12.0°C
May 25	12°C	12°C	13°C	12.5°C
May 26	12°C	12°C	13°C	12.5°C
May 27	12°C	12°C	11°C	12.0°C
May 28	12°C	13°C	13°C	12.8°C
May 29	13°C	13°C	13°C	13.0°C
May 30	13°C	13°C	12°C	12.8°C

Penarth Climate and Swimming Opportunities in May

15°C

Average Day Air Temperature

8°C

Average Night Air Temperature

66 mm

Precipitation Amount per Month

12 days

Number of Rainy Days

15 hrs

Daylight
per Day

6 hrs

Sunshine
per Day

14 km/h

Average Wind Speed

82%

Average
humidity

Penarth lies within the Wales in United Kingdom. The average daytime temperature in Penarth in May is 15°C (59°F), while the nighttime average is 8°C (47°F). There are typically 12 rainy days during the month, with a total precipitation of 66 mm (2.6 inches). The daylight duration in May in Penarth is 15 hours, with an average of 6 hours of sunshine per day. The average wind speed in May is 14 km/h (9 mph), and the humidity level is around 82%.

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

Sea Temperature in May in Nearby Cities

Frequently Asked Questions About Water Temperatures in May in Penarth

What is the sea temperature in Penarth in May?

The water temperature in the Celtic Sea in Penarth in May ranges from 10°C to 13°C (50°F to 55°F).

Is it possible to swim in the Celtic Sea in Penarth in May?

The average sea temperature in Penarth in May is 12°C (54°F), and the air temperature is 15°C (59°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.