September weather forecastEirol, Portugal
September
Weather in September
September, the first month of the autumn in Eirol, is also a moderately hot month, with an average temperature fluctuating between 26.6°C (79.9°F) and 14.1°C (57.4°F).Temperature
September's climate shows a minor adjustment in average high-temperatures to a still moderately hot 26.6°C (79.9°F) from August's 28.4°C (83.1°F). September nights report a substantial dip from daytime highs to an average of 14.1°C (57.4°F).Humidity
August and September, with an average relative humidity of 65%, are the least humid months.Rainfall
In Eirol, during September, the rain falls for 5.7 days and regularly aggregates up to 28mm (1.1") of precipitation. In Eirol, during the entire year, the rain falls for 123.9 days and collects up to 660mm (25.98") of precipitation.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 07:01 and sunset at 20:06. On the last day of the month, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
The average sunshine in September is 9.2h.UV index
In Eirol, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the UV index of 5 transforms into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Eirol, Portugal
- Average high temperature in September: 26.6°C
The warmest month (with the highest average high temperature) is August (28.4°C).
The month with the lowest average high temperature is January (13.1°C).
- Average low temperature in September: 14.1°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (5.7°C).
Average pressure in September
Eirol, Portugal
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Eirol, Portugal
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is September (7.3km/h).
Average humidity in September
Eirol, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are August and September (65%).
Average rainfall in September
Eirol, Portugal
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is November (98mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in September
Eirol, Portugal
- Average rainfall days in September: 5.7 days
The month with the highest number of rainy days is November (14.9 days).
The month with the least rainy days is August (3.3 days).
Average daylight in September /
Average sunshine in September
Eirol, Portugal
- 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 12min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Eirol, Portugal
- Average sunshine days in September: 22.7 days
The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is November (13.7 days).
Average UV index in September
Eirol, Portugal
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in September
Eirol, Portugal
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Eirol, Portugal
- Average visibility in September: 9km
The months with the highest visibility are May, June, September, October and December (9km).
The months with the lowest visibility are January, February, March, April, July, August and November (8km).
