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Sea Temperature in San Sebastian in May
Complete information on the sea temperature range in the Bay of Biscay in San Sebastian in May. Historical daily data. Climate details for May. Tips on swimming conditions and beach relaxation in San Sebastian. 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 San Sebastian in May
13°C
MINIMUN
16.5°C
AVERAGE
20°C
MAXIMUM
Historical Data of Water Temperature in May in San Sebastian
Water Temperature Chart for Bay of Biscay in San Sebastian in May
Sea Temperature Table in San Sebastian in May Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| May 1 | 15°C | 17°C | 14°C | 15.0°C |
| May 2 | 14°C | 17°C | 14°C | 14.8°C |
| May 3 | 15°C | 17°C | 14°C | 15.0°C |
| May 4 | 15°C | 17°C | 14°C | 15.0°C |
| May 5 | 15°C | 17°C | 14°C | 15.0°C |
| May 6 | 15°C | 18°C | 14°C | 15.5°C |
| May 7 | 16°C | 18°C | 14°C | 15.5°C |
| May 8 | 15°C | 18°C | 15°C | 15.5°C |
| May 9 | 16°C | 17°C | 15°C | 15.8°C |
| May 10 | 16°C | 18°C | 15°C | 16.0°C |
| May 11 | 16°C | 18°C | 15°C | 16.0°C |
| May 12 | 15°C | 18°C | 15°C | 15.8°C |
| May 13 | 15°C | 18°C | 15°C | 16.0°C |
| May 14 | 15°C | 17°C | 16°C | 16.0°C |
| May 15 | 15°C | 17°C | 16°C | 16.0°C |
| May 16 | 15°C | 17°C | 17°C | 16.3°C |
| May 17 | 15°C | 17°C | 17°C | 16.3°C |
| May 18 | 15°C | 18°C | 17°C | 16.5°C |
| May 19 | 15°C | 18°C | 16°C | 16.3°C |
| May 20 | 16°C | 18°C | 16°C | 16.8°C |
| May 21 | 16°C | 18°C | 16°C | 16.8°C |
| May 22 | 15°C | 18°C | 16°C | 16.5°C |
| May 23 | 16°C | 19°C | 16°C | 16.8°C |
| May 24 | 16°C | 19°C | 16°C | 16.8°C |
| May 25 | 15°C | 18°C | 16°C | 16.3°C |
| May 26 | 15°C | 18°C | 16°C | 16.3°C |
| May 27 | 16°C | 19°C | 16°C | 17.0°C |
| May 28 | 16°C | 19°C | 16°C | 17.0°C |
| May 29 | 17°C | 19°C | 16°C | 17.0°C |
| May 30 | 16°C | 20°C | 16°C | 17.3°C |
San Sebastian Climate and Swimming Opportunities in May
19°C
Average Day Air Temperature
12°C
Average Night Air Temperature
96 mm
Precipitation Amount per Month
13 days
Number of Rainy Days
14 hrs
Daylight
per Day
6 hrs
Sunshine
per Day
14 km/h
Average Wind Speed
76%
Average
humidity
San Sebastian lies within the Basque Country in Spain. The average daytime temperature in San Sebastian in May is 19°C (66°F), while the nighttime average is 12°C (54°F). There are typically 13 rainy days during the month, with a total precipitation of 96 mm (3.8 inches). The daylight duration in May in San Sebastian is 14 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 76%.
The water temperature in San Sebastian in May ranges from 14°C to 17°C (57°F to 63°F). At the beginning of the month, the average temperature is around 15°C (59°F), shifting to 16°C (61°F) by mid-May and reaching 17°C (63°F) in the last ten days. Overall, the average sea temperature in San Sebastian for May is 16°C (61°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 San Sebastian
What is the sea temperature in San Sebastian in May?
The water temperature in the Bay of Biscay in San Sebastian in May ranges from 14°C to 17°C (57°F to 63°F).
Is it possible to swim in the Bay of Biscay in San Sebastian in May?
The average sea temperature in San Sebastian in May is 16°C (61°F), and the air temperature is 19°C (66°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.