September weather forecastMontillana, Spain

September

Weather in September

September, the first month of the autumn in Montillana, is still a warm month, with an average temperature fluctuating between 16.6°C (61.9°F) and 28.5°C (83.3°F).

Temperature

The onset of September introduces a moderate change in Montillana's weather, with average high-temperatures falling from August's hot 34.4°C (93.9°F) to a warm 28.5°C (83.3°F). An average low-temperature of 16.6°C (61.9°F) is noted during the month of September.

Heat index

In September, the heat index is computed to be 29°C (84.2°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In September, the average relative humidity in Montillana is 46%.

Rainfall

In Montillana, Spain, in September, it is raining for 5.3 days, with typically 17mm (0.67") of accumulated precipitation. In Montillana, during the entire year, the rain falls for 96.7 days and collects up to 293mm (11.54") of precipitation.

Snowfall

April through December are months without snowfall.

Daylight

In Montillana, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 07:45 and sunset at 20:43. On the last day of the month, sunrise is at 08:09 and sunset at 19:59 CEST.

Sunshine

In September, the average sunshine is 9.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Take necessary precautions - Defending against sun damage is advocated. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

In September, in Montillana, the average high-temperature is 28.5°C (83.3°F), and the average low-temperature is 16.6°C (61.9°F). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 29°C (84.2°F).

The average relative humidity in September is 46%.

In September, in Montillana, the rain falls for 5.3 days. Throughout September, 17mm (0.67") of precipitation is accumulated.

In Montillana, snow does not fall in April through December.

The average day length in September in Montillana is 12h and 25min.

In September, on the first day of the month, sunrise is at 07:45 and sunset at 20:43. On the last day of the month, in Montillana, sunrise is at 08:09 and sunset at 19:59 CEST.

In September, the average sunshine duration in Montillana is 9.6h.

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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 snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Montillana, Spain

  • Average high temperature in September: 28.5°C

The warmest month (with the highest average high temperature) is August (34.4°C).
The month with the lowest average high temperature is January (11.3°C).

  • Average low temperature in September: 16.6°C

The month with the highest average low temperature is August (20.5°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).

Average pressure in September
Montillana, Spain

  • Average pressure in September: 1016.8mbar

The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).

Average wind speed in September
Montillana, Spain

  • Average wind speed in September: 6.3km/h

The windiest month (with the highest average wind speed) is March (8.9km/h).
The calmest month (with the lowest average wind speed) is October (6.1km/h).

Average humidity in September
Montillana, Spain

  • Average humidity in September: 46%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is July (33%).

Average rainfall in September
Montillana, Spain

  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is November (48mm).
The driest month (with the least rainfall) is July (2mm).

Average rainfall days in September
Montillana, Spain

  • Average rainfall days in September: 5.3 days

The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is July (2.5 days).

Average snowfall in September
Montillana, Spain

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (4mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in September
Montillana, Spain

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Montillana, 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 June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in September
Montillana, Spain

  • Average sunshine days in September: 22.8 days

The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is March (14.8 days).

Average UV index in September
Montillana, Spain

  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September
Montillana, Spain

  • Average cloud cover in September: 13

The month with the most cloud cover is January (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 6).

Average visibility in September
Montillana, Spain

  • Average visibility in September: 10km

The months with the highest visibility are February, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, March and April (9km).