September weather forecast
Costa Calma, Spain

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Costa Calma, Spain, with an average temperature varying between 27°C (80.6°F) and 20°C (68°F).

Temperature

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

Rainfall

Months with rainfall are January through May, September through December. September is the first month it rains. Throughout September, in the average 1 rainfall days, it receives 4mm (0.16") of precipitation. In Costa Calma, Spain, during the entire year, the rain falls for 19 days and collects up to 93mm (3.66") of precipitation.

Sea temperature

The month with the warmest seawater in Costa Calma is September, with an average sea temperature of 23°C (73.4°F).
Note: If cold is not your friend, swimming at 23°C (73.4°F) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.

Daylight

In September, the average length of the day in Costa Calma is 12h and 19min.
On the first day of the month, sunrise is at 07:35 and sunset at 20:17. On the last day of September, in Costa Calma, sunrise is at 07:49 and sunset at 19:43 WEST.

Sunshine

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

UV index

The average daily maximum UV index in September is 9. A UV Index reading of 8 to 10 represents a very high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 9 translates into these guidelines:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Limiting time under the Sun is advisable, especially for individuals who tend to burn. Ensure using sunscreen with a 30 SPF or higher. Attention! UV strength is notably upped by the reflection of sand and water.
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Frequently asked questions

What part of the year is the hottest in Costa Calma?

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

What is the average September temperature in Costa Calma?

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

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 (0.16") 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).

What is the water temperature in September in Costa Calma?

In September, the average sea temperature in Costa Calma is 23°C (73.4°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 23°C (73.4°F).

What is the average length of the day in September in Costa Calma?

In Costa Calma, the average day length in September is 12h and 19min.

When are sunrise and sunset in September in Costa Calma?

On the first day of September in Costa Calma, Spain, sunrise is at 07:35 and sunset at 20:17. On the last day of the month, sunrise is at 07:49 and sunset at 19:43 WEST.

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

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

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

The average daily maximum UV index in September in Costa Calma, Spain, is 9. A UV Index of 8 to 10 symbolizes a very high health threat from exposure to Sun's UV rays.
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Costa Calma, Spain

Average temperature in September - Costa Calma, Spain
  • Average high temperature in September: 27°C

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

  • Average low temperature in September: 20°C

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

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Average rainfall in September
Costa Calma, Spain

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

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

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Average rainfall days in September
Costa Calma, Spain

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

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

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Average sea temperature in September
Costa Calma, Spain

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).
The coldest months (with the lowest average sea temperature) are February and March (18°C).

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

Average daylight in September / Average sunshine in September - Costa Calma, Spain
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in September: 8h

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

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Average UV index in September
Costa Calma, Spain

Average UV index in September - Costa Calma, Spain
  • Average UV index in September: 9

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

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Costa Calma, Spain

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