September weather forecastNiebla, Spain

September

Weather in September

The first month of the autumn, September, is still a warm month in Niebla, Spain, with temperature in the range of an average low of 19.1°C (66.4°F) and an average high of 27.7°C (81.9°F).

Temperature

The onset of September entails a subtle temperature shift, as the average high-temperature eases from a tropical 31.3°C (88.3°F) in August to a moderately hot 27.7°C (81.9°F). Niebla experiences an average temperature drop to a comfortable 19.1°C (66.4°F) during September nights.

Heat index

During September, the heat index is estimated at 29°C (84.2°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

In September, the average relative humidity in Niebla is 60%.

Rainfall

In Niebla, during September, the rain falls for 3.9 days and regularly aggregates up to 6mm (0.24") of precipitation. Throughout the year, in Niebla, there are 74.4 rainfall days, and 251mm (9.88") of precipitation is accumulated.

Daylight

In Niebla, the average length of the day in September is 12h and 25min.
On the first day of September in Niebla, sunrise is at 07:57 and sunset at 20:55. On the last day of the month, sunrise is at 08:21 and sunset at 20:11 CEST.

Sunshine

In Niebla, the average sunshine in September is 9.6h.

UV index

In Niebla, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

The average high-temperature, in September, in Niebla, is 27.7°C (81.9°F), while the average low-temperature is 19.1°C (66.4°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 29°C (84.2°F).

In September, the average relative humidity is 60%.

In Niebla, in September, it is raining for 3.9 days, with typically 6mm (0.24") of accumulated precipitation.

In Niebla, Spain, the average day length in September is 12h and 25min.

In September, on the first day of the month, sunrise is at 07:57 and sunset at 20:55. On the last day of the month, sunrise is at 08:21 and sunset at 20:11 CEST.

In September, the average sunshine duration is 9.6h.

The average daily maximum UV index in September in Niebla is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Niebla, Spain

  • Average high temperature in September: 27.7°C

The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (15.2°C).

  • Average low temperature in September: 19.1°C

The month with the highest average low temperature is August (20.8°C).
The coldest months (with the lowest average low temperature) are January and February (8.8°C).

Average pressure in September
Niebla, Spain

  • Average pressure in September: 1016.1mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is August (1015mbar).

Average wind speed in September
Niebla, Spain

  • Average wind speed in September: 10.9km/h

The windiest month (with the highest average wind speed) is March (15km/h).
The calmest month (with the lowest average wind speed) is September (10.9km/h).

Average humidity in September
Niebla, Spain

  • Average humidity in September: 60%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (52%).

Average rainfall in September
Niebla, Spain

  • Average rainfall in September: 6mm

The wettest month (with the highest rainfall) is November (46mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in September
Niebla, Spain

  • Average rainfall days in September: 3.9 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (1.2 days).

Average daylight in September /
Average sunshine in September
Niebla, Spain

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 8h and 6min).

Average sunshine days in September
Niebla, Spain

  • Average sunshine days in September: 24.6 days

The month with the most sunshine days is July (28.8 days).
The month with the least sunshine days is April (18.8 days).

Average UV index in September
Niebla, Spain

  • Average UV index in September: 6

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

Average cloud cover in September
Niebla, Spain

  • Average cloud cover in September: 14

The month with the most cloud cover is January (Cloud cover 30).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in September
Niebla, Spain

  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).