Altea
Spain
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Altea, Spain

The first month of the autumn, September, is also a moderately hot month in Altea, Spain, with average temperature fluctuating between 17°C (62.6°F) and 28°C (82.4°F).

Temperature

In Altea, the average high-temperature in September is almost the same as in August - a warm 28°C (82.4°F). In September, the average low-temperature is 17°C (62.6°F).

Rainfall

In Altea, Spain, it is raining for 6 days, with typically 42mm (1.7") of accumulated precipitation. Throughout the year, there are 105 rainfall days, and 435mm (17.1") of precipitation is accumulated.

Sea temperature

In Altea, the average seawater temperature is 24.9°C (76.8°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.9°C (76.8°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)

Daylight

The average length of the day in Altea is 12.4h.

Sunshine

The average sunshine in September is 8h.

UV index

In September, the average daily maximum UV index in Altea is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Altea?

In Altea, in September, the average high-temperature is 28°C (82.4°F), and the average low-temperature is 17°C (62.6°F).

How many days does it rain in September in Altea?

In September, in Altea, the rain falls for 6 days. Throughout September, 42mm (1.7") of precipitation is accumulated.

How warm is the water in September in Altea?

In Altea, Spain, the average seawater temperature in September is 24.9°C (76.8°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.9°C (76.8°F) water.

How many hours of daylight does Altea have in September?

The average length of the day in September in Altea, Spain, is 12.4h.

How many hours of sunshine does Altea have in September?

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

What is the UV index intensity in September in Altea?

In September, the average daily maximum UV index in Altea is 7. A UV Index of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.
Average temperature in September - Altea, Spain
  • Average high temperature in September: 28°C

The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (15°C).

  • Average low temperature in September: 17°C

The month with the highest average low temperature is August (20°C).
Coldest months (with the lowest average low temperature) are January and February (6°C).

Average rainfall in September - Altea, Spain
  • Average rainfall in September: 42mm

The wettest month (with the highest rainfall) is October (76mm).
The driest month (with the lowest rainfall) is July (10mm).

Average rainfall days in September - Altea, Spain
  • Average rainfall days in September: 6 days

The month with the highest number of rainy days is January (13 days).
The month with the lowest number of rainy days is July (3 days).

Average sea temperature in September - Altea, Spain
  • Average sea temperature in September: 24.9°C

The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest month (with the lowest average sea temperature) is February (14°C).

Average daylight in September / Average sunshine in September - Altea, Spain
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 8h

The month with most sunshine is July (Average sunshine: 11h).
The month with least sunshine is December (Average sunshine: 5h).

Average UV index in September - Altea, Spain
  • Average UV index in September: 7

Months with the highest UV index are June, July and August (UV index 9).
Months with the lowest UV index are January and December (UV index 2).