Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The ushering in of September brings an average high-temperature of a still moderately hot 24.6°C (76.3°F), closely mirroring the 25.9°C (78.6°F) of August. Throughout September, Aldreu's nights cool down to an average of 15.1°C (59.2°F).Humidity
The least humid month in Aldreu is September, with an average relative humidity of 68%.Rainfall
In September, in Aldreu, Portugal, the rain falls for 7.3 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Aldreu, during the entire year, the rain falls for 139.3 days and collects up to 934mm (36.77") of precipitation.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 07:01 and sunset at 20:07. On the last day of September, in Aldreu, sunrise is at 07:31 and sunset at 19:18 WEST.
Sunshine
In Aldreu, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are September temperatures in Aldreu?
What is the least humid month in Aldreu?
What is the average humidity in September in Aldreu?
How many days does it rain in September in Aldreu?
How many hours of daylight does Aldreu have in September?
What time are sunrise and sunset in September in Aldreu?
How long on average sun shines in September in Aldreu?
What is the UV index reading in September in Aldreu?
Average temperature in September
Aldreu, Portugal
- Average high temperature in September: 24.6°C
The warmest month (with the highest average high temperature) is August (25.9°C).
The month with the lowest average high temperature is January (12.8°C).
- Average low temperature in September: 15.1°C
The month with the highest average low temperature is August (15.5°C).
The coldest months (with the lowest average low temperature) are January and February (6.9°C).
Average pressure in September
Aldreu, Portugal
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Aldreu, Portugal
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is February (11.4km/h).
The calmest month (with the lowest average wind speed) is September (8.8km/h).
Average humidity in September
Aldreu, Portugal
- Average humidity in September: 68%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is September (68%).
Average rainfall in September
Aldreu, Portugal
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (144mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Aldreu, Portugal
- Average rainfall days in September: 7.3 days
The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is August (4.8 days).
Average daylight in September /
Average sunshine in September
Aldreu, Portugal
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Aldreu, Portugal
- Average sunshine days in September: 21 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in September
Aldreu, Portugal
- Average UV index in September: 5
The month with the highest UV index is 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
Aldreu, Portugal
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in September
Aldreu, Portugal
- 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).
Aldreu, Portugal
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