May · Spain
Best time to visit Santiago de Compostela in May Weather, crowds & prices
Weather in Santiago de Compostela in May
Average temperature 15°C, 85 mm of rain, about 28 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
8.1/10
Ranked #4 of 12 months
- Avg temp
- 15°C
- Rainfall
- 85 mm
- Humidity
- 80%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Santiago de Compostela scores 8.1/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 15°C, 85 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Santiago de Compostela crowns the Camino with granite cathedral squares, pilgrim rituals, and Galician seafood markets. Best window: late spring through early autumn.
May in Santiago de Compostela: strong conditions, 4th of 12
May averages 15°C (59°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 85 mm, so plan one flexible day in three; you still get about 28 days with 6+ hours of sunshine and 14.5 hours of daylight.
It scores 8.1/10 here, 4th of 12 months, against 9.8/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Figure on mid-season pricing, with crowds are moderate.
Flexible dates? July scores 1.7 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Santiago de Compostela in May?
- In May, Santiago de Compostela averages 15°C, 85 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 8.1/10.
- Is May a good time to visit Santiago de Compostela?
- May earns a 8.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Santiago de Compostela in May?
- Expect about 85 mm of rain in May. Average humidity is 80% and there are about 28 days with 6+ hours of sunshine.
Curated in Santiago de Compostela
Tickets & experiences
Things to do in Santiago de Compostela
Santiago de Compostela, Spain. Live activities and tours from GetYourGuide, matched to this destination.