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
September
Weather in September
Temperature
The shift into September uncovers an average high-temperature of a still warm 25.4°C (77.7°F), subtly different from the previous month. Throughout September, Refojos de Riba de Ave registers a consistent average low-temperature of 13.5°C (56.3°F).Humidity
The average relative humidity in September is 65%.Rainfall
In Refojos de Riba de Ave, in September, it is raining for 7.3 days, with typically 29mm (1.14") of accumulated precipitation. In Refojos de Riba de Ave, during the entire year, the rain falls for 143.4 days and collects up to 842mm (33.15") of precipitation.Daylight
In Refojos de Riba de Ave, Portugal, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 07:00 and sunset at 20:06. On the last day of September, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
In September, the average sunshine in Refojos de Riba de Ave is 9.2h.UV index
In Refojos de Riba de Ave, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Refojos de Riba de Ave in September?
What is the average humidity in September in Refojos de Riba de Ave?
How much does it rain in Refojos de Riba de Ave in September?
How many hours of daylight does Refojos de Riba de Ave have in September?
When is the sunrise / sunset in September in Refojos de Riba de Ave?
How long on average sun shines in September in Refojos de Riba de Ave?
What is the UV index intensity in September in Refojos de Riba de Ave?
Average temperature in September
Refojos de Riba de Ave, Portugal
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (11.7°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in September
Refojos de Riba de Ave, Portugal
- Average pressure in September: 1017.3mbar
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
Refojos de Riba de Ave, Portugal
- Average wind speed in September: 6.7km/h
The windiest months (with the highest average wind speed) are February and March (8.7km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).
Average humidity in September
Refojos de Riba de Ave, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Refojos de Riba de Ave, Portugal
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is December (128mm).
The driest month (with the least rainfall) is July (9mm).
Average rainfall days in September
Refojos de Riba de Ave, Portugal
- Average rainfall days in September: 7.3 days
The months with the highest number of rainy days are January and November (16.4 days).
The month with the least rainy days is August (4.6 days).
Average daylight in September /
Average sunshine in September
Refojos de Riba de Ave, 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 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: 4h and 42min).
Average sunshine days in September
Refojos de Riba de Ave, Portugal
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is November (11.2 days).
Average UV index in September
Refojos de Riba de Ave, Portugal
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
Refojos de Riba de Ave, Portugal
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Refojos de Riba de Ave, Portugal
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April, November and December (8km).
