September weather forecast and climate
Sarzedas, Portugal

Weather in September

The first month of the autumn, September, is still a warm month in Sarzedas, Portugal, with average temperature fluctuating between 28.6°C (83.5°F) and 15.4°C (59.7°F).

Temperature

In Sarzedas, Portugal, the average high-temperature in September slightly decreases, from a tropical 32.8°C (91°F) in August, to a moderately hot 28.6°C (83.5°F). In Sarzedas, in September, the average low-temperature is 15.4°C (59.7°F).

Heat index

The average heat index in September is calculated to 29°C (84.2°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 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, differences in body mass, height, and shape, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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

The average relative humidity in September is 49%.

Rainfall

In September, in Sarzedas, Portugal, the rain falls for 5.2 days. Throughout September, 18mm (0.71") of precipitation is accumulated. In Sarzedas, during the entire year, the rain falls for 97.2 days and collects up to 371mm (14.61") of precipitation.

Snowfall

In Sarzedas, Portugal, snow does not fall in February through December.

Daylight

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

Sunshine

The average sunshine in Sarzedas is 9.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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 Sarzedas?

In September, the average high-temperature is 28.6°C (83.5°F), and the average low-temperature is 15.4°C (59.7°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, in September is estimated at 29°C (84.2°F).

What is the average humidity in September in Sarzedas?

In September, the average relative humidity in Sarzedas is 49%.

How much does it rain in Sarzedas in September?

In Sarzedas, during September, the rain falls for 5.2 days and regularly aggregates up to 18mm (0.71") of precipitation.

When it does not snow in Sarzedas?

In Sarzedas, Portugal, snow does not fall in February through December.

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

The average length of the day in September in Sarzedas, Portugal, is 12.4h.

How long on average sun shines in September in Sarzedas?

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

How high is the UV index in September in Sarzedas?

The average daily maximum UV index in September in Sarzedas, Portugal, is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
Sarzedas, Portugal

Average temperature in September - Sarzedas, Portugal
  • Average high temperature in September: 28.6°C

The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (11.6°C).

  • Average low temperature in September: 15.4°C

The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).

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Average pressure in September
Sarzedas, Portugal

Average pressure in September - Sarzedas, Portugal
  • Average pressure in September: 1016.5mbar

The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

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Average wind speed in September
Sarzedas, Portugal

Average wind speed in September - Sarzedas, Portugal
  • Average wind speed in September: 8.3km/h

The windiest month (with the highest average wind speed) is February (11.3km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).

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Average humidity in September
Sarzedas, Portugal

Average humidity in September - Sarzedas, Portugal
  • Average humidity in September: 49%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in September
Sarzedas, Portugal

Average rainfall in September - Sarzedas, Portugal
  • Average rainfall in September: 18mm

The wettest month (with the highest rainfall) is November (60mm).
The driest months (with the least rainfall) are July and August (3mm).

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Average rainfall days in September
Sarzedas, Portugal

Average rainfall days in September - Sarzedas, Portugal
  • Average rainfall days in September: 5.2 days

The month with the highest number of rainy days is November (12.3 days).
The month with the least rainy days is August (1.5 days).

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Average snowfall in September
Sarzedas, Portugal

Average snowfall in September - Sarzedas, Portugal
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (1mm).
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in September
Sarzedas, Portugal

Average snowfall days in September - Sarzedas, Portugal
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and March (0.1 days).
Months with the least snowfall days are February, April, May, June, July, August, September, October, November and December (0 days).

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

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

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 9.4h

Months with the most sunshine are July and August (Average sunshine: 11.8h).
The month with the least sunshine is January (Average sunshine: 5.2h).

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Average sunshine days in September
Sarzedas, Portugal

Average sunshine days in September - Sarzedas, Portugal
  • Average sunshine days in September: 23.3 days

The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is April (16.6 days).

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Average UV index in September
Sarzedas, Portugal

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

Months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Sarzedas, Portugal

Average cloud cover in September - Sarzedas, Portugal
  • Average cloud cover in September: 17

The month with the most cloud cover is January (Cloud cover 42).
Months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in September
Sarzedas, Portugal

Average visibility in September - Sarzedas, Portugal
  • Average visibility in September: 10km

Months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).

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