Costa Calma
Spain
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Costa Calma, Spain

The first month of the autumn, September, is still a warm month in Costa Calma, Spain, with average temperature fluctuating between 20°C (68°F) and 27°C (80.6°F).

Temperature

July through September, with an average high-temperature of 27°C (80.6°F), are the warmest months.

Rainfall

Months with rainfall in Costa Calma are January through May, September through December.

Sea temperature

The month with the warmest seawater in Costa Calma is September, 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

The average length of the day in Costa Calma, Spain, is 12.3h.

Sunshine

The average sunshine in September is 8h.

UV index

In Costa Calma, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high health risk from unsafe exposure to the UV radiation for the ordinary person.
The average daily UV index of 9 transform into the following instructions:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 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. 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 strength of the UV rays is significantly increased by the reflection of the water and sand.

What are the warmest months in Costa Calma?

July through September, with an average high-temperature of 27°C (80.6°F), are warmest months in Costa Calma.

What is the temperature in September in Costa Calma?

In Costa Calma, in September, the average high-temperature is 27°C (80.6°F), and the average low-temperature is 20°C (68°F).

When does it start raining in Costa Calma?

September is the first month it rains in Costa Calma, Spain. Throughout September, in the average 1 rainfall days, it receives 4mm (0.2") of precipitation.

What month is the sea warmest in Costa Calma?

The month with the warmest seawater in Costa Calma is September, 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.

What is the sea temperature in September in Costa Calma?

In Costa Calma, in September, the average water temperature is 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.

How many hours of daylight does Costa Calma have in September?

In Costa Calma, Spain, the average length of the day in September is 12.3h.

How long on average sun shines in September in Costa Calma?

In Costa Calma, the average sunshine in September is 8h.

How high is the UV index in September in Costa Calma?

In September, the average daily maximum UV index is 9. A UV Index of 8 to 10 symbolizes a very high hazard to health from the exposure to the Sun's UV rays.
Average temperature in September - Costa Calma, Spain
  • Average high temperature in September: 27°C

Warmest months (with the highest average high temperature) are July, August and September (27°C).
Months with the lowest average high temperature are January, February and December (20°C).

  • Average low temperature in September: 20°C

Months with the highest average low temperature are July, August and September (20°C).
Coldest months (with the lowest average low temperature) are January and February (13°C).

Average rainfall in September - Costa Calma, Spain
  • Average rainfall in September: 4mm

The wettest month (with the highest rainfall) is February (19mm).
Driest months (with the lowest rainfall) are June, July and August (0mm).

Average rainfall days in September - Costa Calma, Spain
  • Average rainfall days in September: 1 days

Months with the highest number of rainy days are January, February, November and December (3 days).
Months with the lowest number of rainy days are June, July and August (0 days).

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

The best month for swimming (with the highest average sea temperature) is September (23°C).
Coldest months (with the lowest average sea temperature) are February and March (18°C).

Average daylight in September / Average sunshine in September - Costa Calma, 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

Months with most sunshine are May, June, July and August (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 6h).

Average UV index in September - Costa Calma, 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).