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
Assilhó observes a minor difference in average high-temperatures between August's 28.4°C (83.1°F) and September's 26.6°C (79.9°F). The average low-temperature reading in September for Assilhó reflects a significant fall from the daytime highs, stabilizing at a refreshing 14.1°C (57.4°F).Humidity
The months with the lowest humidity in Assilhó are August and September, with an average relative humidity of 65%.Rainfall
In Assilhó, during September, the rain falls for 5.7 days and regularly aggregates up to 28mm (1.1") of precipitation. In Assilhó, during the entire year, the rain falls for 123.9 days and collects up to 660mm (25.98") of precipitation.Daylight
In September, the average length of the day in Assilhó is 12h and 28min.On the first day of the month, sunrise is at 07:01 and sunset at 20:06. On the last day of September, in Assilhó, sunrise is at 07:29 and sunset at 19:17 WEST.
Sunshine
In Assilhó, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Assilhó is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 suggests this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the temperature in September in Assilhó?
What are the least humid months in Assilhó?
What is the average humidity in September in Assilhó?
How many days does it rain in September in Assilhó?
How many hours of daylight does Assilhó have in September?
When are sunrise and sunset in September in Assilhó?
How long on average sun shines in September in Assilhó?
What is the UV index reading in September in Assilhó?
Average temperature in September
Assilhó, 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
Assilhó, 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
Assilhó, 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
Assilhó, 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
Assilhó, 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
Assilhó, 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
Assilhó, Portugal
- Average daylight in September: 12h and 3min
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 1min
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
Assilhó, 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
Assilhó, 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
Assilhó, 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
Assilhó, 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).
Assilhó, Portugal
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