Arona
Spain
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Arona, Spain

The first month of the autumn, September, is also a moderately hot month in Arona, Spain, with average temperature varying between 25°C (77°F) and 18°C (64.4°F).

Temperature

In Arona, the average high-temperature in September is almost the same as in August - a still warm 25°C (77°F). The average low-temperature, in September, is 18°C (64.4°F).

Rainfall

In Arona, Spain, it is raining for 2 days, with typically 13mm (0.5") of accumulated precipitation. In Arona, Spain, during the entire year, the rain falls for 44 days and collects up to 412mm (16.2") of precipitation.

Sea temperature

Months with the warmest seawater in Arona, Spain, are August through October, with an average sea temperature of 23°C (73.4°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23°C (73.4°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

In Arona, the average length of the day is 12.3h.

Sunshine

The average sunshine in September is 8h.

UV index

In Arona, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high threat to health from the exposure to the Sun's UV radiation for the average person.
In September, the average maximum UV index of 9 translate into the following recommendations:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Arona?

In Arona, in September, the average high-temperature is 25°C (77°F), and the average low-temperature is 18°C (64.4°F).

How many days does it rain in September in Arona?

In Arona, Spain, during September, the rain falls for 2 days and regularly aggregates up to 13mm (0.5") of precipitation.

What are the months with the warmest sea water in Arona?

Months with the warmest seawater are August through October, with an average sea temperature of 23°C (73.4°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23°C (73.4°F) water.

How warm is the water in September in Arona?

In Arona, in September, the average water temperature is 23°C (73.4°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23°C (73.4°F) water.

What is the average length of the day in September in Arona?

In Arona, the average length of the day in September is 12.3h.

How long on average sun shines in September in Arona?

In Arona, the average sunshine in September is 8h.

What is the UV index reading in September in Arona?

The average daily maximum UV index in September in Arona, Spain, is 9. A UV Index estimate of 8 to 10 represents a very high health risk from unprotected exposure to the UV radiation.
Average temperature in September - Arona, Spain
  • Average high temperature in September: 25°C

The warmest month (with the highest average high temperature) is August (26°C).
Months with the lowest average high temperature are January and February (18°C).

  • Average low temperature in September: 18°C

The month with the highest average low temperature is August (19°C).
Coldest months (with the lowest average low temperature) are January and February (12°C).

Average rainfall in September - Arona, Spain
  • Average rainfall in September: 13mm

The wettest month (with the highest rainfall) is December (75mm).
The driest month (with the lowest rainfall) is July (1mm).

Average rainfall days in September - Arona, Spain
  • Average rainfall days in September: 2 days

Months with the highest number of rainy days are November and December (6 days).
Months with the lowest number of rainy days are July and August (1 days).

Average sea temperature in September - Arona, Spain
  • Average sea temperature in September: 23°C

Best months for swimming (with the highest average sea temperature) are August, September and October (23°C).
Coldest months (with the lowest average sea temperature) are January, February, March and April (19°C).

Average daylight in September / Average sunshine in September - Arona, Spain
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.9h).
The month with shortest days is December (Average daylight: 10.4h).

  • Average sunshine in September: 8h

The month with most sunshine is July (Average sunshine: 10h).
Months with least sunshine are January, November and December (Average sunshine: 6).

Average UV index in September - Arona, Spain
  • Average UV index in September: 9

Months with the highest UV index are June, July and August (UV index 11).
Months with the lowest UV index are January and December (UV index 4).