Alicante
Spain
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Alicante, Spain

A far scenic view of the Serra Grossa o San Julian mountain in Alicante, Spain, centrally placed in the city, with a beautiful waterfront
A far scenic view of the Serra Grossa o San Julian mountain in Alicante, Spain, centrally placed in the city, with a beautiful waterfront
The first month of the autumn, September, is still a warm month in Alicante, Spain, with temperature in the range of an average low of 19°C (66.2°F) and an average high of 28.5°C (83.3°F).
An excellent water temperature of 25°C (77°F) and only 3.3 rainfall days, with 40mm (1.6") of accumulated rainfall, makes September a prime for swimming and other water activities.

Temperature

In Alicante, the average high-temperature is almost the same as in August - a moderately hot 28.5°C (83.3°F). In Alicante, the average low-temperature is 19°C (66.2°F).

Heat index

The average heat index in September is evaluated at a hot 31.5°C (88.7°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, pregnancy, clothing). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity is 69%.

Rainfall

In September, the rain falls for 3.3 days. Throughout September, 40mm (1.6") of precipitation is accumulated. Throughout the year, there are 35.1 rainfall days, and 277mm (10.9") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature is 25°C (77°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day is 12.4h.

Sunshine

In September, the average sunshine in Alicante is 8.1h.

UV index

In Alicante, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Alicante?

The average high-temperature, in September, is 28.5°C (83.3°F), while the average low-temperature is 19°C (66.2°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), that combines both air temperature and relative humidity, is estimated at 31.5°C (88.7°F).

What is the average humidity in September in Alicante?

In September, the average relative humidity in Alicante is 69%.

How many days does it rain in September in Alicante?

In September, in Alicante, the rain falls for 3.3 days. Throughout September, 40mm (1.6") of precipitation is accumulated.

How warm is the water in September in Alicante?

In Alicante, Spain, the average seawater temperature in September is 25°C (77°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Alicante have in September?

In Alicante, Spain, the average length of the day in September is 12.4h.

How many hours of sunshine does Alicante have in September?

The average sunshine in September in Alicante, Spain, is 8.1h.

What is the UV index reading in September in Alicante?

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Alicante, Spain
  • Average high temperature in September: 28.5°C

The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (17°C).

  • Average low temperature in September: 19°C

The month with the highest average low temperature is August (21.5°C).
The coldest month (with the lowest average low temperature) is January (6.5°C).

Average humidity in September - Alicante, Spain
  • Average humidity in September: 69%

The month with the highest relative humidity is October (70%).
Months with the lowest relative humidity are April and June (63%).

Average rainfall in September - Alicante, Spain
  • Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is October (46mm).
The driest month (with the lowest rainfall) is July (4mm).

Average rainfall days in September - Alicante, Spain
  • Average rainfall days in September: 3.3 days

The month with the highest number of rainy days is October (4.1 days).
The month with the lowest number of rainy days is July (0.7 days).

Average sea temperature in September - Alicante, Spain
  • Average sea temperature in September: 25°C

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (14.1°C).

Average daylight in September / Average sunshine in September - Alicante, 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: 8.1h

The month with most sunshine is July (Average sunshine: 11.1h).
The month with least sunshine is December (Average sunshine: 5.3h).

Average UV index in September - Alicante, 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).