September weather forecast and climate
Valados, Portugal

Weather in September

The first month of the autumn, September, is also a moderately hot month in Valados, Portugal, with average temperature ranging between max 25.8°C (78.4°F) and min 19.2°C (66.6°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still warm 25.8°C (78.4°F). In September, the average low-temperature is 19.2°C (66.6°F).

Humidity

The average relative humidity in September is 66%.

Rainfall

January through June, September through December are months with rainfall in Valados. September is the first month it rains in Valados, Portugal. Throughout September, in the average 2.4 rainfall days, it receives 3mm (0.12") of precipitation. Throughout the year, there are 46.1 rainfall days, and 70mm (2.76") of precipitation is accumulated.

Daylight

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

Sunshine

The average sunshine in Valados, Portugal, is 9.5h.

UV index

May through September, with an average maximum UV index of 6, are months with the highest UV index in Valados, Portugal. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Valados?

In September, in Valados, the average high-temperature is 25.8°C (78.4°F), and the average low-temperature is 19.2°C (66.6°F).

What is the average humidity in September in Valados?

In September, the average relative humidity in Valados, Portugal, is 66%.

When does it start raining in Valados?

September is the first month it rains in Valados. Throughout September, in the average 2.4 rainfall days, it receives 3mm (0.12") of precipitation.

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

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

How many hours of sunshine does Valados have in September?

In Valados, Portugal, the average sunshine in September is 9.5h.

What are the months with the highest UV index in Valados?

May through September, with an average maximum UV index of 6, are months with the highest UV index in Valados.

How high is the UV index in September in Valados?

The average daily maximum UV index in September in Valados, Portugal, is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.

Average temperature in September
Valados, Portugal

Average temperature in September - Valados, Portugal
  • Average high temperature in September: 25.8°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (14.9°C).

  • Average low temperature in September: 19.2°C

The month with the highest average low temperature is August (20°C).
The coldest month (with the lowest average low temperature) is February (10.2°C).

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Average pressure in September
Valados, Portugal

Average pressure in September - Valados, Portugal
  • Average pressure in September: 1016.4mbar

The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed in September
Valados, Portugal

Average wind speed in September - Valados, Portugal
  • Average wind speed in September: 12.1km/h

The windiest months (with the highest average wind speed) are February and March (17.7km/h).
The calmest month (with the lowest average wind speed) is September (12.1km/h).

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Average humidity in September
Valados, Portugal

Average humidity in September - Valados, Portugal
  • Average humidity in September: 66%

Months with the highest relative humidity are January, April and December (75%).
The month with the lowest relative humidity is August (60%).

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Average rainfall in September
Valados, Portugal

Average rainfall in September - Valados, Portugal
  • Average rainfall in September: 3mm

The wettest month (with the highest rainfall) is November (14mm).
The driest months (with the least rainfall) are July and August (0mm).

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Average rainfall days in September
Valados, Portugal

Average rainfall days in September - Valados, Portugal
  • Average rainfall days in September: 2.4 days

The month with the highest number of rainy days is April (7.1 days).
The month with the least rainy days is August (0.3 days).

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

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

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9.5h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 6h).

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Average sunshine days in September
Valados, Portugal

Average sunshine days in September - Valados, Portugal
  • Average sunshine days in September: 26.8 days

The month with the most sunshine days is July (30 days).
The month with the least sunshine days is April (21.4 days).

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Average UV index in September
Valados, Portugal

Average UV index in September - Valados, 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, March, November and December (UV index 4).

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Average cloud cover in September
Valados, Portugal

Average cloud cover in September - Valados, Portugal
  • Average cloud cover in September: 14

The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in September
Valados, Portugal

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

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

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