Weather: San Sebastián — May
The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.
🌟 Climate Overview
May is an excellent time to visit San Sebastián. Warm weather with highs of 20°C—great for outdoor activities. This is one of the wettest months—waterproof gear is essential. As peak season, expect higher prices and more tourists. At 17°C, the sea is too cold for most swimmers.
Based on weather comfort, crowds, prices, and activity options
20°C
14°C
16days
14.6h
103mm
10.9h/day
80%
Very Humid8.1
Very High17 km/h (gusts 34)
17°C ❄️ Cold
Is May a good time to visit San Sebastián?
The weather is near-perfect with ideal temperatures and minimal rain.
Now
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Air Quality
Travel Context
- CrowdsVery Busy
- Travel Costs Shoulder Rates
Daylight
06:46
21:24
Visiting San Sebastián in May: Pros & Cons
Pros
- Comfortable temperatures for sightseeing
- Abundant sunshine for beach and outdoor fun
- Long daylight hours maximize sightseeing time
- One of the best months to visit
Cons
- Frequent rain may disrupt outdoor activities
- Peak season — expect crowds and higher prices
- Sea too cold for comfortable swimming
- Very high UV — sunscreen and shade essential
Things to Do in May
Recommended for This Weather
San Sebastián Weather by Month
| Month | Avg High | Avg Low | Rain | Sunshine | Humidity | UV Index | Crowds | Condition |
|---|---|---|---|---|---|---|---|---|
| Jan | 13°C | 8°C | 15d (137mm) | 5.8h | 79% Humid | 2.3 Moderate | | Wet |
| Feb | 15°C | 9°C | 12d (92mm) | 7.2h | 77% Humid | 3.6 Moderate | | Good |
| Mar | 15°C | 10°C | 17d (120mm) | 8.6h | 75% Humid | 5.2 High | | Wet |
| Apr | 17°C | 11°C | 14d (99mm) | 9.6h | 77% Humid | 6.9 High | | Wet |
| May Current | 20°C | 14°C | 16d (103mm) | 10.9h | 80% Very Humid | 8.1 Very High | | Excellent |
| Jun | 23°C | 17°C | 17d (131mm) | 10.4h | 83% Very Humid | 8 Very High | | Excellent |
| Jul | 24°C | 18°C | 12d (52mm) | 11.4h | 82% Very Humid | 8.4 Very High | | Excellent |
| Aug | 25°C | 19°C | 13d (98mm) | 10.6h | 82% Very Humid | 7.5 Very High | | Excellent |
| Sep | 23°C | 17°C | 15d (135mm) | 9.3h | 79% Humid | 5.8 High | | Excellent |
| Oct | 21°C | 15°C | 13d (135mm) | 7.6h | 78% Humid | 4.1 Moderate | | Wet |
| Nov | 16°C | 12°C | 15d (173mm) | 6.1h | 80% Very Humid | 2.5 Moderate | | Wet |
| Dec | 14°C | 10°C | 18d (183mm) | 5.4h | 81% Very Humid | 2 Low | | Wet |
San Sebastián
Basque culinary capital, including La Concha beach, La Concha beach promenade and Pintxos bar hopping in Parte Vieja, pintxos bars, and Michelin-starred dining.
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What to Pack for May
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions. A waterproof jacket and shoes are non-negotiable — showers are frequent. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.
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Frequently Asked Questions
Is May a good time to visit San Sebastián?
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Is May peak season in San Sebastián?
More San Sebastián Guides
Best Time to Visit
Coming soon
Things to Do
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Where to Stay
Best neighborhoods and hotel recommendations
Cost & Budget
Daily costs, money-saving tips, and budget breakdown
Itineraries
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Overview
Complete travel guide for San Sebastián: top things to do, itineraries, and typical costs.