September weather forecastUlldecona, Spain
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Ulldecona, Spain, with an average temperature ranging between min 20.4°C (68.7°F) and max 25.2°C (77.4°F).Temperature
Ulldecona observes an average high-temperature of a still warm 25.2°C (77.4°F) in September, barely different from 27.9°C (82.2°F) in August. A mild drop to an average of 20.4°C (68.7°F) marks the nights in Ulldecona during September.Humidity
The average relative humidity in September in Ulldecona is 67%.Rainfall
In Ulldecona, in September, it is raining for 9.6 days, with typically 29mm (1.14") of accumulated precipitation. Throughout the year, in Ulldecona, there are 96.3 rainfall days, and 284mm (11.18") of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in Ulldecona.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 07:25 and sunset at 20:30. On the last day of the month, sunrise is at 07:54 and sunset at 19:41 CEST.
Sunshine
In Ulldecona, the average sunshine in September is 9.3h.UV index
In Ulldecona, Spain, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ulldecona, Spain
- Average high temperature in September: 25.2°C
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is January (13.3°C).
- Average low temperature in September: 20.4°C
The month with the highest average low temperature is August (22.6°C).
The coldest month (with the lowest average low temperature) is February (7.8°C).
Average pressure in September
Ulldecona, Spain
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in September
Ulldecona, Spain
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is January (18.9km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).
Average humidity in September
Ulldecona, Spain
- Average humidity in September: 67%
The months with the highest relative humidity are April, August, October and December (68%).
The months with the lowest relative humidity are February, March, May, June and November (66%).
Average rainfall in September
Ulldecona, Spain
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is October (45mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Ulldecona, Spain
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is April (11.9 days).
The month with the least rainy days is December (5.6 days).
Average snowfall in September
Ulldecona, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is February (6mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Ulldecona, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Ulldecona, Spain
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 18min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in September
Ulldecona, Spain
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is December (24 days).
The month with the least sunshine days is April (15.5 days).
Average UV index in September
Ulldecona, Spain
- Average UV index in September: 6
The month with the highest UV index is June (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
Ulldecona, Spain
- Average cloud cover in September: 19
The month with the most cloud cover is April (Cloud cover 27).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in September
Ulldecona, 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).





