Monthly climate guide
Santiago de Compostela weather in May
Expect mild weather in Santiago de Compostela in May: afternoons reach about 19°C (66°F), while nights drop to around 10°C (50°F). Around 70 mm of rain falls over the month (some rain), and skies are often cloudy. Daytime highs are 3°C warmer than April and 2°C cooler than June.
What stands out in May
- Santiago de Compostela is usually about 3°C warmer than Cee, 50 km away, in May.
- In Santiago de Compostela, May is late spring.
Avg high
19°C
66°F
Avg low
10°C
50°F
Rainfall
70 mm
some rain
Humidity
81%
relative
Sky
55%
cloud · often cloudy
Santiago de Compostela weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 12°C / 53°F | 6°C / 43°F | 169 mm | 90% | 67% |
| February | 12°C / 54°F | 6°C / 42°F | 118 mm | 88% | 68% |
| March | 14°C / 57°F | 7°C / 44°F | 134 mm | 85% | 60% |
| April | 16°C / 61°F | 8°C / 46°F | 113 mm | 83% | 62% |
| May | 19°C / 66°F | 10°C / 50°F | 70 mm | 81% | 55% |
| June | 21°C / 70°F | 12°C / 53°F | 50 mm | 79% | 53% |
| July | 24°C / 76°F | 14°C / 58°F | 23 mm | 75% | 40% |
| August | 25°C / 77°F | 14°C / 58°F | 44 mm | 74% | 43% |
| September | 24°C / 75°F | 14°C / 57°F | 46 mm | 74% | 47% |
| October | 20°C / 68°F | 12°C / 53°F | 128 mm | 80% | 57% |
| November | 14°C / 58°F | 9°C / 48°F | 169 mm | 88% | 69% |
| December | 13°C / 55°F | 7°C / 45°F | 169 mm | 90% | 70% |
What to pack for May
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May a good time to visit Santiago de Compostela?
Compare the months in the chart above to find your ideal window.
Best time to visit Santiago de Compostela →Other Spain cities in May
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Santiago de Compostela weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/spain/santiago-de-compostela/may
<a href="https://weathercompare.eu/weather/spain/santiago-de-compostela/may">Santiago de Compostela weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/spain/santiago-de-compostela" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Santiago de Compostela weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/spain/santiago-de-compostela/may">Santiago de Compostela weather in May</a> – WeatherCompare</p>
Santiago de Compostela in May: quick answers
Is May a good time to visit Santiago de Compostela?
May is a reasonable time for Santiago de Compostela: highs around 19°C and about 70 mm of rain, though not one of the three best months.
How warm is Santiago de Compostela in May?
Average highs are about 19°C (66°F) and average lows about 10°C (50°F), based on 10 years of daily data.
Does it rain a lot in Santiago de Compostela in May?
Santiago de Compostela typically gets around 70 mm of rain in May — some rain.
Figures are long-term averages for the area around Santiago de Compostela (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.