September weather forecastPortas, Spain
September
Weather in September
September, the first month of the autumn in Portas, is still a pleasant month, with an average temperature ranging between min 13.9°C (57°F) and max 22.8°C (73°F).Temperature
The advent of September reveals an average high-temperature of an agreeable 22.8°C (73°F), showing minimal difference from the prior month. During September, Portas experiences a consistent low-temperature average of 13.9°C (57°F).Humidity
In September, the average relative humidity is 76%.Rainfall
In Portas, in September, it is raining for 7.5 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, there are 143.1 rainfall days, and 813mm (32.01") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 08:00 and sunset at 21:08. On the last day of the month, sunrise is at 08:31 and sunset at 20:17 CEST.
Sunshine
In Portas, the average sunshine in September is 8.7h.UV index
In Portas, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Portas, Spain
- Average high temperature in September: 22.8°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (11.5°C).
- Average low temperature in September: 13.9°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is February (5.9°C).
Average pressure in September
Portas, Spain
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1021.9mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Portas, Spain
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is February (13.5km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).
Average humidity in September
Portas, Spain
- Average humidity in September: 76%
The months with the highest relative humidity are January and November (86%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Portas, Spain
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is November (138mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days in September
Portas, Spain
- Average rainfall days in September: 7.5 days
The months with the highest number of rainy days are January and November (16.8 days).
The month with the least rainy days is August (5.9 days).
Average daylight in September /
Average sunshine in September
Portas, Spain
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Portas, Spain
- Average sunshine days in September: 20.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is November (12.2 days).
Average UV index in September
Portas, Spain
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
Portas, Spain
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 26).
Average visibility in September
Portas, Spain
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
