Santiago de Compostela
Spain
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Santiago de Compostela, Spain

  • Average high temperature in May: 18.6°C

The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (11.2°C).

  • Average low temperature in May: 8.5°C

The month with the highest average low temperature is August (13.3°C).
Coldest months (with the lowest average low temperature) are January and February (4.1°C).

  • Average humidity in May: 76%

The month with the highest relative humidity is November (86%).
Months with the lowest relative humidity are June, July and August (74%).

  • Average rainfall in May: 135mm

The wettest month (with the highest rainfall) is December (261mm).
The driest month (with the lowest rainfall) is July (43mm).

  • Average rainfall days in May: 12.7 days

The month with the highest number of rainy days is December (15.9 days).
The month with the lowest number of rainy days is August (5.5 days).

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (1 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

  • Average daylight in May: 14.7h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in May: 6h

The month with most sunshine is July (Average sunshine: 7.8h).
The month with least sunshine is December (Average sunshine: 2.7h).

  • Average UV index in May: 7

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).

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