Weather in Santiago de Compostela in May 2025
Average weather
Average temperature in Santiago de Compostela in May
Going from a maximum of +27°C during the day to a minimum of +9°C during the night, the temperature in May averages around +20°C.
The average maximum temperature goes down 11% by the end of the month, compared with the beginning of the month, from +23°C to +21°C.
Is Santiago de Compostela warm or cold in May?
Santiago de Compostela is typically mild in May.
Maximum temperatures go up compared to the previous month from +16°C to +19°C. The minimum temperature also goes up from +8°C to +10°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Santiago de Compostela:
Climate in Santiago de Compostela in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +16°C | +19°C | +22°C | ||||
| Min. temperature | ||||||
| -1°C | +2°C | +5°C | ||||
| Max. temperature | ||||||
| +31°C | +34°C | +36°C | ||||
| Rainfall | ||||||
| 125 mm | 103 mm | 56 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 78% | 78% | 78% | ||||
| Air pressure | ||||||
| 1015 HPa | 1016 HPa | 1017 HPa | ||||
| Sunny days | ||||||
| 7 | 6 | 8 | ||||
| Cloudy days | ||||||
| 6 | 8 | 10 | ||||
| Rainy days | ||||||
| 16 | 16 | 11 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +16°C to +19°C during the day. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 125 mm to 103 mm. Humidity levels don’t change as the month goes on, averaging around 78%. The average wind speed doesn’t change much during May, staying around 2 m/s. The days becoming less sunny, going from 7 sunny days in April to 6 in May.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Santiago de Compostela is gradually increasing during May, going from 1 m/s to 1 m/s over the course of the month.
Rain
How was the weather last May in Santiago de Compostela?
Climate Change over Years
The climate in Santiago de Compostela in May has not changed much over the last 43 years.
The average temperature was the lowest in 1986 (+17°C) and the highest in 2017 (+19°C). The driest year was 2004 with only 848 mm of rainfall, and the wettest year was 2023 with 2201 mm.
FAQ
Is May a good time to visit Santiago de Compostela?
Can you sunbathe in Santiago de Compostela in May?
Is Santiago de Compostela rainy in May?
Is it sunny in Santiago de Compostela in May?
Other cities in Spain
Monthly weather in Santiago de Compostela
Source of the data
For this page, we’ve looked at the typical weather in Santiago de Compostela, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.