Sea Temperature in Roscoff in May

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

10°C

MINIMUN

12.5°C

AVERAGE

15°C

MAXIMUM

Historical Data of Water Temperature in May in Roscoff

Water Temperature Chart for Celtic Sea in Roscoff in May

Sea Temperature Table in Roscoff in May Over the Past Years

Day	2024	2023	2022	Average
May 1	11°C	12°C	13°C	11.8°C
May 2	10°C	12°C	13°C	11.5°C
May 3	11°C	12°C	12°C	11.8°C
May 4	11°C	12°C	13°C	12.0°C
May 5	11°C	13°C	14°C	12.5°C
May 6	12°C	13°C	11°C	12.0°C
May 7	11°C	13°C	14°C	12.3°C
May 8	12°C	13°C	12°C	12.3°C
May 9	11°C	14°C	12°C	12.3°C
May 10	11°C	14°C	12°C	12.3°C
May 11	11°C	13°C	13°C	12.3°C
May 12	11°C	13°C	13°C	12.3°C
May 13	12°C	13°C	14°C	12.8°C
May 14	11°C	13°C	14°C	12.8°C
May 15	11°C	13°C	11°C	11.8°C
May 16	12°C	13°C	14°C	13.0°C
May 17	11°C	13°C	11°C	12.0°C
May 18	12°C	14°C	11°C	12.3°C
May 19	12°C	14°C	13°C	13.0°C
May 20	12°C	14°C	13°C	13.0°C
May 21	12°C	14°C	13°C	13.3°C
May 22	12°C	15°C	13°C	13.5°C
May 23	13°C	14°C	13°C	13.5°C
May 24	12°C	14°C	14°C	13.3°C
May 25	12°C	14°C	14°C	13.3°C
May 26	12°C	14°C	13°C	13.0°C
May 27	12°C	15°C	14°C	13.5°C
May 28	12°C	15°C	13°C	13.3°C
May 29	12°C	15°C	13°C	13.3°C
May 30	13°C	15°C	13°C	13.5°C

Roscoff Climate and Swimming Opportunities in May

18°C

Average Day Air Temperature

9°C

Average Night Air Temperature

61 mm

Precipitation Amount per Month

11 days

Number of Rainy Days

15 hrs

Daylight
per Day

7 hrs

Sunshine
per Day

19 km/h

Average Wind Speed

81%

Average
humidity

Roscoff lies within the Brittany in France. The average daytime temperature in Roscoff in May is 18°C (64°F), while the nighttime average is 9°C (48°F). There are typically 11 rainy days during the month, with a total precipitation of 61 mm (2.4 inches). The daylight duration in May in Roscoff is 15 hours, with an average of 7 hours of sunshine per day. The average wind speed in May is 19 km/h (12 mph), and the humidity level is around 81%.

The water temperature in Roscoff in May ranges from 11°C to 13°C (52°F to 55°F). At the beginning of the month, the average temperature is around 12°C (54°F), shifting to 12°C (54°F) by mid-May and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in Roscoff for May is 13°C (55°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 Roscoff

What is the sea temperature in Roscoff in May?

The water temperature in the Celtic Sea in Roscoff in May ranges from 11°C to 13°C (52°F to 55°F).

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

The average sea temperature in Roscoff in May is 13°C (55°F), and the air temperature is 18°C (64°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.