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Asturias in September: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Asturias in September will be like? Take a look at our weather guide for Asturias, based on historical data.
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September

Weather in Asturias in September 2025

OK Weather
Mild
🌧️
Rainy
If you plan to visit Asturias in September, the weather is typically alright, with an average high temperature of +21°C during the day and approximately 3 sunny days. Expect some rainy, though, as there are typically 17 rainy days in the month and around 79 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+21°C
Avg. max. temperature
+7°C
Min.
+33°C
Max.
79 mm
Total precipitation
83%
Avg. humidity
2 m/s
Avg. wind
3 ☀️
Sunny Days
10 ⛅️
Cloudy
17 🌦
Rainy
Our opinion: Asturias has OK weather in September.

Average temperature in Asturias in September

Here are the expected maximum, average and minimum temperatures in Asturias for September based on the historical data.
Last Year
Historical Data

Going from a maximum of +30°C during the day to a minimum of +12°C during the night, the temperature in September averages around +24°C.

The average maximum temperature goes up 33% by the end of the month, compared with the beginning of the month, from +24°C to +30°C.

Is Asturias warm or cold in September?

Asturias is typically mild in September.

Maximum temperatures go down compared to the previous month from +23°C to +21°C. The minimum temperature also goes down from +16°C to +14°C.

Pack a light jacket as it will be warm in the day and cool in the evenings.

September is one of the warmest months in Asturias, here is the comparison with other months:

Climate in Asturias in September

Asturias weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+23°C+21°C+19°C
Min. temperature
+10°C+7°C+3°C
Max. temperature
+32°C+33°C+32°C
Rainfall
70 mm79 mm121 mm
Wind
1 m/s2 m/s2 m/s
Humidity
84%83%82%
Air pressure
1017 HPa1017 HPa1015 HPa
Sunny days
333
Cloudy days
10109
Rainy days
181719
Snowy days
000

September weather is still as ok as in August. It’s getting colder in September. From +23°C in the day, the average maximum temperature lowers to +21°C. Prepare for more rain. Average rainfall goes from 70 mm to 79 mm. It feels drier, as humidity decreases from 84% to 83%. Winds are stronger in comparison to August, going up from 1 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 3 sunny days during the month.

October brings much the same weather, it remains ok.

Wind

Wind speed in Asturias in September based on historical data.
Last Year
Historical Data

The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Asturias is gradually increasing during September, going from 1 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Asturias based on historical data.
Last Year
Historical Data
Typically, there is a 57% chance of rain on an average day in September, with total rainfall of approximately 134 mm. The maximum amount of rainfall per day is around 34 mm, which is moderate rain. September is a pretty wet month with over 17 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Asturias wettest month is November, where a typical day has a 63% chance of precipitation and 143 mm of rainfall per day. July, on the other hand, is the driest month with a mere 58% chance of precipitation and 68 mm of rainfall per day.

How was the weather last September in Asturias?

This is the weather in Asturias in September 2023:
1 September
☁️
+24°C
2 September
🌧️
+20°C
3 September
☁️
+25°C
4 September
☁️
+27°C
5 September
☀️
+29°C
6 September
☀️
+29°C
7 September
☁️
+28°C
8 September
☁️
+28°C
9 September
☁️
+24°C
10 September
☁️
+25°C
11 September
☁️
+22°C
12 September
🌧️
+22°C
13 September
☁️
+21°C
14 September
☁️
+23°C
15 September
☁️
+26°C
16 September
🌧️
+25°C
17 September
☁️
+24°C
18 September
☁️
+23°C
19 September
☁️
+22°C
20 September
☁️
+25°C
21 September
🌧️
+20°C
22 September
🌧️
+19°C
23 September
☀️
+21°C
24 September
☀️
+26°C
25 September
☀️
+23°C
26 September
☁️
+23°C
27 September
☁️
+25°C
28 September
☀️
+28°C
29 September
☁️
+22°C
30 September
☀️
+30°C
In September 2023 Asturias had 7 sunny days, 18 cloudy days, and 5 rainy days. The average maximum temperature was +24°C, with an absolute maximum of +30°C and a minimum of +19°C. The average humidity was 83%, with a maximum of 100% and a minimum of 46%. The average wind speed was 1 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change over Years

This is how Asturias climate have been changing during last 43 years period.

The climate in Asturias in September has not changed much over the last 43 years.

The average temperature was the lowest in 1986 (+16°C) and the highest in 2023 (+19°C). The driest year was 2011 with only 862 mm of rainfall, and the wettest year was 2019 with 1726 mm.

FAQ

Frequently asked questions about the weather in Asturias in September:

Is September a good time to visit Asturias?

It’s always a good time to visit Asturias, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Asturias in September?

September has mild temperatures in Asturias. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Asturias rainy in September?

Asturias is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Asturias in September?

Usually, it’s not very sunny in Asturias in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Spain

Check out the weather for other cities in Spain.

Monthly weather in Asturias

Source of the data

For this page, we’ve looked at the typical weather in Asturias, 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.