September weather forecastHuelva, Spain
September
Weather in September
As the end of summer approaches, September in Huelva witnesses a gradual decrease in maximum temperatures from 31.3°C (88.3°F) to 27.7°C (81.9°F). This period signals the onset of the fall season, with the weather becoming more refreshing and manageable. The change in season does not bring a substantial decrease in daylight or sunshine hours, guaranteeing plenty of sun exposure for beach lovers. With relative humidity also dropping, tourists enjoy the open-air cafes and markets. The sea temperature begins to recede, but it still maintains the warmth of summer for water activities.Temperature
September in Huelva brings a slight decrease in temperature, down from a hot 31.3°C (88.3°F) in August to a warm 27.7°C (81.9°F). Huelva encounters a steady low-temperature average of 19.1°C (66.4°F) throughout the month of September.Heat index
In September, the heat index is appraised at 29°C (84.2°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
In Huelva, the average relative humidity in September is 60%.Rainfall
In Huelva, during September, the rain falls for 3.9 days and regularly aggregates up to 6mm (0.24") of precipitation. Throughout the year, in Huelva, there are 74.4 rainfall days, and 251mm (9.88") of precipitation is accumulated.Sea temperature
In Huelva, the average seawater temperature in September is 21.7°C (71.1°F).Note: Most people do not enjoy swimming in water that is 21.7°C (71.1°F). Breathing becomes increasingly challenging as the water temperature dips under 21°C (69.8°F).
Daylight
In Huelva, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 07:58 and sunset at 20:56. On the last day of September, sunrise is at 08:22 and sunset at 20:12 CEST.
Sunshine
The average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the UV index of 6 transforms into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! Reflections from sand and water can intensify the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Huelva, 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
Huelva, 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
Huelva, 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
Huelva, 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
Huelva, 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
Huelva, 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 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: 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
Huelva, 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
Huelva, 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
Huelva, 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
Huelva, 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).








