September weather forecastBrito, Portugal
September
Weather in September
September, the first month of the autumn in Brito, is also a moderately hot month, with an average temperature fluctuating between 25.8°C (78.4°F) and 13.3°C (55.9°F).Temperature
September's arrival brings an average high-temperature of a still warm 25.8°C (78.4°F), slightly deviating from August's 27.8°C (82°F). Despite higher daytime temperatures, nighttime averages fall to a mild 13.3°C (55.9°F) in September.Humidity
In Brito, the average relative humidity in September is 64%.Rainfall
In Brito, in September, during 7.5 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Brito, during the entire year, the rain falls for 138 days and collects up to 860mm (33.86") of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in September in Brito, Portugal, is 12h and 28min.On the first day of September in Brito, Portugal, sunrise is at 07:00 and sunset at 20:06. On the last day of the month, sunrise is at 07:29 and sunset at 19:16 WEST.
Sunshine
In Brito, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September in Brito 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 daily maximum UV index of 5 in September translates into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brito, Portugal
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (11.4°C).
- Average low temperature in September: 13.3°C
The month with the highest average low temperature is August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (4.7°C).
Average pressure in September
Brito, Portugal
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Brito, Portugal
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is March (8.2km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).
Average humidity in September
Brito, Portugal
- Average humidity in September: 64%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Brito, Portugal
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is December (131mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Brito, Portugal
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is January (15.8 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in September
Brito, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Brito, Portugal
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Brito, Portugal
- Average daylight in September: 12h and 30min
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 6min
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
Brito, Portugal
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is August (24.2 days).
The month with the least sunshine days is November (11.9 days).
Average UV index in September
Brito, Portugal
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Brito, Portugal
- Average cloud cover in September: 25
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Brito, Portugal
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).
