September weather forecast
Santiago de Compostela, Spain

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Weather in September

September, the first month of the autumn in Santiago de Compostela, is also a moderately hot month, with an average temperature ranging between min 12°C (53.6°F) and max 23°C (73.4°F).

Temperature

September's arrival registers an average high-temperature of a still warm 23°C (73.4°F), closely aligning with the temperature of the previous month. Santiago de Compostela, in September, witnesses an average low-temperature of 12°C (53.6°F).

Humidity

In Santiago de Compostela, the average relative humidity in September is 79%.

Rainfall

In Santiago de Compostela, during September, the rain falls for 9.9 days and regularly aggregates up to 23mm (0.91") of precipitation. In Santiago de Compostela, during the entire year, the rain falls for 176.6 days and collects up to 790mm (31.1") of precipitation.

Snowfall

March through October are months without snowfall in Santiago de Compostela.

Daylight

The average length of the day in September in Santiago de Compostela is 12h and 29min.
On the first day of the month, sunrise is at 07:59 and sunset at 21:08. On the last day of September, sunrise is at 08:30 and sunset at 20:17 CEST.

Sunshine

In September, the average sunshine in Santiago de Compostela is 8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, a regular UV index of 4 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What are the temperatures in Santiago de Compostela in September?

The high-temperature during September is 23°C (73.4°F) and the low-temperature is 12°C (53.6°F).

What is the average humidity in September in Santiago de Compostela?

In Santiago de Compostela, Spain, the average relative humidity in September is 79%.

How much does it rain in Santiago de Compostela in September?

In Santiago de Compostela, Spain, in September, during 9.9 rainfall days, 23mm (0.91") of precipitation is typically accumulated.

When it does not snow in Santiago de Compostela?

In Santiago de Compostela, snow does not fall in March through October.

What is the average length of the day in September in Santiago de Compostela?

In September, the average day length in Santiago de Compostela is 12h and 29min.

What time are sunrise and sunset in September in Santiago de Compostela?

On the first day of September in Santiago de Compostela, sunrise is at 07:59 and sunset at 21:08. On the last day of the month, sunrise is at 08:30 and sunset at 20:17 CEST.

How long on average sun shines in September in Santiago de Compostela?

In September, the average sunshine duration is 8h.

How high is the UV index in September in Santiago de Compostela?

In Santiago de Compostela, Spain, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Santiago de Compostela, Spain

Average temperature in September - Santiago de Compostela, Spain
  • Average high temperature in September: 23°C

The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (10.6°C).

  • Average low temperature in September: 12°C

The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (3.8°C).

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Average pressure in September
Santiago de Compostela, Spain

Average pressure in September - Santiago de Compostela, Spain
  • Average pressure in September: 1018.1mbar

The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

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Average wind speed in September
Santiago de Compostela, Spain

Average wind speed in September - Santiago de Compostela, Spain
  • Average wind speed in September: 8.2km/h

The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.2km/h).

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Average humidity in September
Santiago de Compostela, Spain

Average humidity in September - Santiago de Compostela, Spain
  • Average humidity in September: 79%

The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (78%).

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Average rainfall in September
Santiago de Compostela, Spain

Average rainfall in September - Santiago de Compostela, Spain
  • Average rainfall in September: 23mm

The wettest month (with the highest rainfall) is November (126mm).
The driest month (with the least rainfall) is July (21mm).

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Average rainfall days in September
Santiago de Compostela, Spain

Average rainfall days in September - Santiago de Compostela, Spain
  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is November (19.2 days).
The month with the least rainy days is August (9.8 days).

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Average snowfall in September
Santiago de Compostela, Spain

Average snowfall in September - Santiago de Compostela, Spain
  • Average snowfall in September: 0mm

The months with the highest snowfall are January and December (3mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).

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Average snowfall days in September
Santiago de Compostela, Spain

Average snowfall days in September - Santiago de Compostela, Spain
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Santiago de Compostela, Spain

Average daylight in September / Average sunshine in September - Santiago de Compostela, Spain
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is June (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in September
Santiago de Compostela, Spain

Average sunshine days in September - Santiago de Compostela, Spain
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is August (17.1 days).
The month with the least sunshine days is November (8.3 days).

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Average UV index in September
Santiago de Compostela, Spain

Average UV index in September - Santiago de Compostela, Spain
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Santiago de Compostela, Spain

Average cloud cover in September - Santiago de Compostela, Spain
  • Average cloud cover in September: 45

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is September (Cloud cover 45).

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Average visibility in September
Santiago de Compostela, Spain

Average visibility in September - Santiago de Compostela, Spain
  • Average visibility in September: 7km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (7km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (7km).

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Santiago de Compostela, Spain

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