May Weather in San Sebastian

Last updated: March 2, 2024

The weather in San Sebastian, Spain, during May is characterized by an average temperature of 14°C (58°F). Highs can soar to 24°C (76°F), while lows may dip to 7°C (45°F). Typically, the humidity level in San Sebastian throughout May hovers around 80%.

7°C (45°F)

Minimum temperature

14°C (58°F)

Average temperature

24°C (76°F)

Maximum temperature

80%

Humidity

Precipitation and Sunshine hours

In May, San Sebastian averages 120 mm (4.7 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 14 hours 41 minutes of daylight, with the sun shining for approximately 11 hours 55 minutes each day. Additionally, there is a 29% probability of sunny days during this period.

120 mm (4.7 inches)

Precipitation

17 rainy days

Rainy days

11 hours 55 minutes

Sunshine hours

29%

Chance of sun

UV Index

In May, the UV Index in San Sebastian reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 2 3 5 7 9 9 9 7 5 3 2
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare San Sebastian's Climate with Cities Worldwide