September weather forecastArana, Spain

September

Weather in September

September, the first month of the autumn in Arana, is also an agreeable month, with an average temperature ranging between min 15.7°C (60.3°F) and max 21.6°C (70.9°F).

Temperature

The arrival of September is marked by an average high-temperature of an agreeable 21.6°C (70.9°F), bearing a close resemblance to August. The mean low-temperature during September nights is a mild 15.7°C (60.3°F).

Humidity

In Arana, Spain, the average relative humidity in September is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 14 days and accumulates 31mm (1.22") of precipitation.

Snowfall

In Arana, Spain, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 30min.
On the first day of the month, sunrise is at 07:35 and sunset at 20:45. On the last day of September, sunrise is at 08:07 and sunset at 19:53 CEST.

Sunshine

In Arana, the average sunshine in September is 8.3h.

UV index

May through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

In September, the average high-temperature and low-temperature in Arana are 21.6°C (70.9°F) and 15.7°C (60.3°F) respectively.

In Arana, the average relative humidity in September is 75%.

September is the month with the least rainfall. Rain falls for 14 days and accumulates 31mm (1.22") of precipitation.

In Arana, during September, the rain falls for 14 days and regularly aggregates up to 31mm (1.22") of precipitation.

April through November are months without snowfall.

In September, the average day length is 12h and 30min.

On the first day of September, sunrise is at 07:35 and sunset at 20:45. On the last day of the month, sunrise is at 08:07 and sunset at 19:53 CEST.

In Arana, the average sunshine duration in September is 8.3h.

The months with the highest UV index are May through September, with an average maximum UV index of 5.

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Arana, Spain

  • Average high temperature in September: 21.6°C

The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (10.8°C).

  • Average low temperature in September: 15.7°C

The month with the highest average low temperature is August (16.9°C).
The coldest month (with the lowest average low temperature) is February (6.5°C).

Average pressure in September
Arana, Spain

  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).

Average wind speed in September
Arana, Spain

  • Average wind speed in September: 10.8km/h

The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).

Average humidity in September
Arana, Spain

  • Average humidity in September: 75%

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Arana, Spain

  • Average rainfall in September: 31mm

The wettest month (with the highest rainfall) is November (103mm).
The driest month (with the least rainfall) is September (31mm).

Average rainfall days in September
Arana, Spain

  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is January (18.6 days).
The month with the least rainy days is October (12.7 days).

Average snowfall in September
Arana, Spain

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Arana, Spain

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Arana, Spain

  • Average daylight in September: 12h and 30min

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 0min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).

Average sunshine days in September
Arana, Spain

  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is May (8.8 days).

Average UV index in September
Arana, Spain

  • Average UV index in September: 5

The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).

Average cloud cover in September
Arana, Spain

  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are September and October (Cloud cover 34).

Average visibility in September
Arana, Spain

  • Average visibility in September: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).