The mean temperature in Santander, Cantabria is somewhat warm at 18.6 °C (65.48 °F).
Afternoons can be warm with average high temperatures reaching 21 °C (69.8 °F).
Overnight temperatures are generally mild with an average low of 15 °C (59 °F).
The mean diurnal temperature variation/ range in September is 6 °C (10.8 °F).
The weather in September is hardly arid with rain every now and then. Circa 92.6mm (3.6in) of liquid tumbles across an average of 14 days.
In September the blue above Santander, Cantabria is slightly fair with an average of a mediocre 5:01 of dazzling solar radiation per day.
The shortest day is 11:42 long and the longest day is 13:10 long with an average length of 12:27.
There are approximately 7:14 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
It is sunny approximately 41% of daylight hours and cloudy 59% of daylight hours.
Castilla y Leon has a mediterranean climate with dry warm summers and mild winters. The area within 40 km of this station is covered by croplands(88%), grasslands (8%), and shrublands (3%).
The month of September is characterized by rapidly falling daily high temperatures, with daily highs decreasing from 25°C to 20°C over the course of the month, exceeding 29°C or dropping below 15°Conly one day in ten.
Over the course of September, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:22 hours, implying an average day-over-day decrease of2.7 minutes.
The shortest day of the month is September 30 with 11:46 hours of daylight; the longest day isSeptember 1 with 13:09 hours of daylight.
Due to Madrid’s high altitude of 650 metres, it experiences quite different temperatures in the summer and the winter. The most pleasant warm weather falls between May and mid July when average temperatures are between 20 and 32 degrees Celsius (68°F – 90°F).
Towards the end of July, and throughout August, it can get hot with temperatures sometimes reaching 40 degrees Celsius (100°F). Night-time temperatures remain around 18 degrees Celsius (64°F). However, the climate in Madrid is low in humidity, therefore making the high temperatures easier to tolerate.
September is a pleasant month, with temperatures back down to around 25 degrees Celsius (77°F). October is also still fairly warm with an average daytime temperature of 20 degrees Celsius (68°F) and is still a pleasant time to visit.
The weather in Madrid is predominantly dry, but that doesn’t mean that rain can be ruled out. Especially in the winter months. Do bear in mind that these temperatures are averages, and the weather may fluctuate from the normal