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 snowfall in September
- Average snowfall 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
On the advent of September, Cabeceiras de Basto's average high-temperature exhibits a minor adjustment to a still moderately hot 25.3°C (77.5°F) from August's 27.8°C (82°F). The significant decline in Cabeceiras de Basto's temperature, from day to night, averages of 12.4°C (54.3°F) in September.Humidity
The average relative humidity in September in Cabeceiras de Basto is 64%.Rainfall
In Cabeceiras de Basto, during September, the rain falls for 5.2 days and regularly aggregates up to 19mm (0.75") of precipitation. Throughout the year, there are 131.8 rainfall days, and 787mm (30.98") of precipitation is accumulated.Snowfall
In Cabeceiras de Basto, snow does not fall in April through October and December.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 06:58 and sunset at 20:04. On the last day of September, sunrise is at 07:28 and sunset at 19:15 WEST.
Sunshine
The average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Cabeceiras de Basto, Portugal
- Average high temperature in September: 25.3°C
The warmest months (with the highest average high temperature) are July and August (27.8°C).
The month with the lowest average high temperature is January (10.8°C).
- Average low temperature in September: 12.4°C
The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is February (3.5°C).
Average pressure in September
Cabeceiras de Basto, Portugal
- Average pressure in September: 1017.5mbar
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
Cabeceiras de Basto, Portugal
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is September (6.3km/h).
Average humidity in September
Cabeceiras de Basto, Portugal
- Average humidity in September: 64%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Cabeceiras de Basto, Portugal
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is December (135mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in September
Cabeceiras de Basto, Portugal
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is January (16.2 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in September
Cabeceiras de Basto, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is January (5mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Cabeceiras de Basto, Portugal
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Cabeceiras de Basto, 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 1min
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 18min).
Average sunshine days in September
Cabeceiras de Basto, Portugal
- Average sunshine days in September: 23.6 days
The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is November (12.2 days).
Average UV index in September
Cabeceiras de Basto, 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 and February (UV index 2).
Average cloud cover in September
Cabeceiras de Basto, Portugal
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility in September
Cabeceiras de Basto, Portugal
- Average visibility in September: 9km
The months with the highest visibility are July, August and September (9km).
The months with the lowest visibility are January, February, November and December (7km).
