September weather forecast and climate
Vale da Urra do Meio, Portugal

Weather in September

September, the first month of the autumn, in Vale da Urra do Meio, is still a warm month, with average temperature fluctuating between 29.5°C (85.1°F) and 15°C (59°F).

Temperature

In Vale da Urra do Meio, the average high-temperature in September slightly decreases, from a tropical 32.7°C (90.9°F) in August, to a warm 29.5°C (85.1°F). The average low-temperature, in Vale da Urra do Meio, Portugal, is 15°C (59°F).

Heat index

In September, the average heat index is evaluated at a hot 31.4°C (88.5°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. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, clothing, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. 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

In Vale da Urra do Meio, the average relative humidity is 57%.

Rainfall

In Vale da Urra do Meio, in September, it is raining for 4.3 days, with typically 16mm (0.63") of accumulated precipitation. Throughout the year, in Vale da Urra do Meio, Portugal, there are 85.1 rainfall days, and 280mm (11.02") of precipitation is accumulated.

Daylight

The average length of the day is 12.4h.

Sunshine

The average sunshine in Vale da Urra do Meio is 9.2h.

UV index

Months with the highest UV index are May through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 Vale da Urra do Meio?

The average high-temperature, in September, in Vale da Urra do Meio, Portugal, is 29.5°C (85.1°F), while the average low-temperature is 15°C (59°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, is estimated at 31.4°C (88.5°F).

What is the average humidity in September in Vale da Urra do Meio?

The average relative humidity in September in Vale da Urra do Meio, Portugal, is 57%.

How many days does it rain in September in Vale da Urra do Meio?

In September, in Vale da Urra do Meio, Portugal, the rain falls for 4.3 days. Throughout September, 16mm (0.63") of precipitation is accumulated.

What is the average length of the day in September in Vale da Urra do Meio?

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

How long on average sun shines in September in Vale da Urra do Meio?

The average sunshine in September in Vale da Urra do Meio is 9.2h.

What are the months with the highest UV index in Vale da Urra do Meio?

Months with the highest UV index in Vale da Urra do Meio are May through September, with an average maximum UV index of 6.

What is the UV index intensity in September in Vale da Urra do Meio?

In Vale da Urra do Meio, Portugal, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in September
Vale da Urra do Meio, Portugal

Average temperature in September - Vale da Urra do Meio, Portugal
  • Average high temperature in September: 29.5°C

The warmest month (with the highest average high temperature) is August (32.7°C).
The month with the lowest average high temperature is January (13.3°C).

  • Average low temperature in September: 15°C

The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (5.7°C).

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Average pressure in September
Vale da Urra do Meio, Portugal

Average pressure in September - Vale da Urra do Meio, Portugal
  • Average pressure in September: 1016.5mbar

The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

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Average wind speed in September
Vale da Urra do Meio, Portugal

Average wind speed in September - Vale da Urra do Meio, Portugal
  • Average wind speed in September: 9.8km/h

The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).

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Average humidity in September
Vale da Urra do Meio, Portugal

Average humidity in September - Vale da Urra do Meio, Portugal
  • Average humidity in September: 57%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in September
Vale da Urra do Meio, Portugal

Average rainfall in September - Vale da Urra do Meio, Portugal
  • Average rainfall in September: 16mm

The wettest month (with the highest rainfall) is November (50mm).
The driest months (with the least rainfall) are July and August (3mm).

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Average rainfall days in September
Vale da Urra do Meio, Portugal

Average rainfall days in September - Vale da Urra do Meio, Portugal
  • Average rainfall days in September: 4.3 days

The month with the highest number of rainy days is November (11.2 days).
The month with the least rainy days is August (1.6 days).

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Average daylight in September /
Average sunshine in September
Vale da Urra do Meio, Portugal

Average daylight in September / Average sunshine in September - Vale da Urra do Meio, 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: 9.4h).

  • Average sunshine in September: 9.2h

The month with the most sunshine is July (Average sunshine: 11.6h).
The month with the least sunshine is January (Average sunshine: 5.1h).

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Average sunshine days in September
Vale da Urra do Meio, Portugal

Average sunshine days in September - Vale da Urra do Meio, Portugal
  • Average sunshine days in September: 25 days

Months with the most sunshine days are July and August (28.7 days).
The month with the least sunshine days is November (17.9 days).

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Average UV index in September
Vale da Urra do Meio, Portugal

Average UV index in September - Vale da Urra do Meio, Portugal
  • Average UV index in September: 6

Months with the highest UV index are May, June, July, August and September (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
Vale da Urra do Meio, Portugal

Average cloud cover in September - Vale da Urra do Meio, Portugal
  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 12).

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Average visibility in September
Vale da Urra do Meio, Portugal

Average visibility in September - Vale da Urra do Meio, Portugal
  • Average visibility in September: 9km

The month with the highest visibility is June (10km).
The month with the lowest visibility is January (8km).

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