San Sebastián Weather in May

San Sebastián in May sees pleasant temperatures, with highs around 18°C (64°F) and overnight lows of 12°C (54°F). Rainfall is fairly high at around 116 mm (4.6 in) on average, so pack waterproofs just in case.

Rainfall in San Sebastián in May

Past climate data indicates that roughly 17 days will see rain, totalling around 116 mm (4.6 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in San Sebastián in May

In May, expect pleasant temperatures in San Sebastián, with highs of 18°C (64°F) and lows of 12°C (54°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in San Sebastián in May

With about 182 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for San Sebastián.