Huelva
Spain
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Huelva, Spain

September, the first month of the autumn, in Huelva, is still a warm month, with average temperature fluctuating between 29.4°C (84.9°F) and 17.3°C (63.1°F).

Temperature

In September, the average high-temperature slightly decreases, from a tropical 32.4°C (90.3°F) in August, to a warm 29.4°C (84.9°F). The average low-temperature, in September, is 17.3°C (63.1°F).

Heat index

In September, the average heat index is calculated to a hot 31.9°C (89.4°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, pregnancy, wind), and activity. 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 particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In September, the average relative humidity is 61%.

Rainfall

In Huelva, in September, during 2 rainfall days, 26mm (1") of precipitation is typically accumulated. In Huelva, during the entire year, the rain falls for 50 days and collects up to 523mm (20.6") of precipitation.

Sea temperature

In September, the average sea temperature is 21.7°C (71.1°F).
Note: Swimming in 21.7°C (71.1°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In Huelva, the average length of the day is 12.4h.

Sunshine

The average sunshine in September is 8.9h.

UV index

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays 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 Huelva?

The average high-temperature, in September, in Huelva, Spain, is 29.4°C (84.9°F), while the average low-temperature is 17.3°C (63.1°F). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines air temperature and relative humidity, is appraised at 31.9°C (89.4°F).

What is the average humidity in September in Huelva?

The average relative humidity in September in Huelva, Spain, is 61%.

How many days does it rain in September in Huelva?

In September, in Huelva, Spain, the rain falls for 2 days. Throughout September, 26mm (1") of precipitation is accumulated.

How cold is the water in September in Huelva?

In Huelva, Spain, the average seawater temperature in September is 21.7°C (71.1°F). For most, swimming in 21.7°C (71.1°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

What is the average length of the day in September in Huelva?

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

How many hours of sunshine does Huelva have in September?

The average sunshine in September in Huelva is 8.9h.

What is the UV index intensity in September in Huelva?

In September, the average daily maximum UV index in Huelva is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in September - Huelva, Spain
  • Average high temperature in September: 29.4°C

The warmest month (with the highest average high temperature) is July (32.7°C).
The month with the lowest average high temperature is January (16.2°C).

  • Average low temperature in September: 17.3°C

The month with the highest average low temperature is August (19.1°C).
The coldest month (with the lowest average low temperature) is January (5.9°C).

Average humidity in September - Huelva, Spain
  • Average humidity in September: 61%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (51%).

Average rainfall in September - Huelva, Spain
  • Average rainfall in September: 26mm

The wettest month (with the highest rainfall) is December (99mm).
The driest month (with the lowest rainfall) is July (3mm).

Average rainfall days in September - Huelva, Spain
  • Average rainfall days in September: 2 days

The month with the highest number of rainy days is December (8 days).
Months with the lowest number of rainy days are July and August (0 days).

Average sea temperature in September - Huelva, Spain
  • Average sea temperature in September: 21.7°C

The best month for swimming (with the highest average sea temperature) is August (22.8°C).
The coldest month (with the lowest average sea temperature) is March (15.9°C).

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

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 8.9h

The month with most sunshine is July (Average sunshine: 11.8h).
The month with least sunshine is December (Average sunshine: 4.9h).

Average UV index in September - Huelva, 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).