September weather forecast and climate
Quebradas, Portugal

Weather in September

September, the first month of the autumn, in Quebradas, is still a warm month, with average temperature ranging between min 15.1°C (59.2°F) and max 28.5°C (83.3°F).

Temperature

In September, the average high-temperature is practically the same as in August - a warm 28.5°C (83.3°F). In September, in Quebradas, the average low-temperature is 15.1°C (59.2°F).

Heat index

In September, the average heat index is estimated at a hot 30.6°C (87.1°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, differences in body mass, height, and shape, wind, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Quebradas, the average relative humidity in September is 63%.

Rainfall

In Quebradas, in September, it is raining for 5.5 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, in Quebradas, there are 107.9 rainfall days, and 335mm (13.19") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine in Quebradas is 9.4h.

UV index

In Quebradas, Portugal, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Quebradas?

In September, in Quebradas, the average high-temperature is 28.5°C (83.3°F), and the average low-temperature is 15.1°C (59.2°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that factores the actual air temperature with the relative humidity, is evaluated at 30.6°C (87.1°F).

What is the average humidity in September in Quebradas?

In Quebradas, Portugal, the average relative humidity in September is 63%.

How many days does it rain in September in Quebradas?

In Quebradas, in September, it is raining for 5.5 days, with typically 17mm (0.67") of accumulated precipitation.

What is the average length of the day in September in Quebradas?

In Quebradas, Portugal, the average length of the day in September is 12.4h.

How many hours of sunshine does Quebradas have in September?

The average sunshine in September is 9.4h.

What is the UV index reading in September in Quebradas?

In September, the average daily maximum UV index in Quebradas, Portugal, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
Quebradas, Portugal

Average temperature in September - Quebradas, Portugal
  • Average high temperature in September: 28.5°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in September: 15.1°C

The month with the highest average low temperature is July (15.8°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).

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Average pressure in September
Quebradas, Portugal

Average pressure in September - Quebradas, Portugal
  • Average pressure in September: 1016.7mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

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Average wind speed in September
Quebradas, Portugal

Average wind speed in September - Quebradas, Portugal
  • Average wind speed in September: 10.5km/h

The windiest month (with the highest average wind speed) is July (13.2km/h).
The calmest month (with the lowest average wind speed) is September (10.5km/h).

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Average humidity in September
Quebradas, Portugal

Average humidity in September - Quebradas, Portugal
  • Average humidity in September: 63%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (62%).

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Average rainfall in September
Quebradas, Portugal

Average rainfall in September - Quebradas, Portugal
  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is November (53mm).
The driest months (with the least rainfall) are July and August (3mm).

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Average rainfall days in September
Quebradas, Portugal

Average rainfall days in September - Quebradas, Portugal
  • Average rainfall days in September: 5.5 days

The month with the highest number of rainy days is November (13.9 days).
The month with the least rainy days is August (2.4 days).

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Average daylight in September /
Average sunshine in September
Quebradas, Portugal

Average daylight in September / Average sunshine in September - Quebradas, Portugal
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 9.4h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is January (Average sunshine: 5.2h).

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Average sunshine days in September
Quebradas, Portugal

Average sunshine days in September - Quebradas, Portugal
  • Average sunshine days in September: 23.4 days

The month with the most sunshine days is July (27.3 days).
Months with the least sunshine days are April and November (14.6 days).

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Average UV index in September
Quebradas, Portugal

Average UV index in September - Quebradas, Portugal
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Quebradas, Portugal

Average cloud cover in September - Quebradas, Portugal
  • Average cloud cover in September: 20

The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
Quebradas, Portugal

Average visibility in September - Quebradas, Portugal
  • Average visibility in September: 9km

The month with the highest visibility is June (10km).
Months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).

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