September weather forecastAvelar, Portugal
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Avelar, Portugal, with an average temperature varying between 26.3°C (79.3°F) and 14.6°C (58.3°F).Temperature
The transition into September notes an average high-temperature of a still warm 26.3°C (79.3°F), revealing a mild distinction from the 27.7°C (81.9°F) in August. Throughout September nights, Avelar registers an average low-temperature of 14.6°C (58.3°F).Humidity
August and September, with an average relative humidity of 68%, are the least humid months.Rainfall
In Avelar, in September, it is raining for 4.2 days, with typically 8mm (0.31") of accumulated precipitation. Throughout the year, in Avelar, there are 79 rainfall days, and 141mm (5.55") of precipitation is accumulated.Daylight
In Avelar, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 07:01 and sunset at 20:04. On the last day of the month, sunrise is at 07:29 and sunset at 19:17 WEST.
Sunshine
The average sunshine in September is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 5 turns into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Avelar, Portugal
- Average high temperature in September: 26.3°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (13.4°C).
- Average low temperature in September: 14.6°C
The month with the highest average low temperature is July (15°C).
The coldest months (with the lowest average low temperature) are January and February (6.7°C).
Average pressure in September
Avelar, Portugal
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Avelar, Portugal
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).
Average humidity in September
Avelar, Portugal
- Average humidity in September: 68%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (68%).
Average rainfall in September
Avelar, Portugal
- Average rainfall in September: 8mm
The wettest month (with the highest rainfall) is November (27mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Avelar, Portugal
- Average rainfall days in September: 4.2 days
The month with the highest number of rainy days is April (11.3 days).
The month with the least rainy days is August (1.9 days).
Average daylight in September /
Average sunshine in September
Avelar, Portugal
- Average daylight in September: 12h and 24min
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 24min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Avelar, Portugal
- Average sunshine days in September: 24.3 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is April (16.2 days).
Average UV index in September
Avelar, 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, November and December (UV index 3).
Average cloud cover in September
Avelar, Portugal
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Avelar, Portugal
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (9km).
The months with the lowest visibility are July and August (8km).
