September weather forecast and climate
Vilarinho da Castanheira, Portugal

Weather in September

The first month of the autumn, September, is still a warm month in Vilarinho da Castanheira, Portugal, with average temperature varying between 25.6°C (78.1°F) and 12.4°C (54.3°F).

Temperature

In September, the average high-temperature marginally drops, from a warm 28.6°C (83.5°F) in August, to a still moderately hot 25.6°C (78.1°F). In September, the average low-temperature is 12.4°C (54.3°F).

Humidity

In September, the average relative humidity in Vilarinho da Castanheira is 59%.

Rainfall

In Vilarinho da Castanheira, in September, it is raining for 6.6 days, with typically 17mm (0.67") of accumulated precipitation. In Vilarinho da Castanheira, during the entire year, the rain falls for 108.1 days and collects up to 286mm (11.26") of precipitation.

Snowfall

April through October are months without snowfall in Vilarinho da Castanheira.

Daylight

In September, the average length of the day is 12.5h.

Sunshine

In September, the average sunshine in Vilarinho da Castanheira is 9.2h.

UV index

In September, the average daily maximum UV index in Vilarinho da Castanheira is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Vilarinho da Castanheira?

In September, in Vilarinho da Castanheira, Portugal, the average high-temperature is 25.6°C (78.1°F), and the average low-temperature is 12.4°C (54.3°F).

What is the average humidity in September in Vilarinho da Castanheira?

In September, the average relative humidity is 59%.

How much does it rain in Vilarinho da Castanheira in September?

In Vilarinho da Castanheira, Portugal, in September, during 6.6 rainfall days, 17mm (0.67") of precipitation is typically accumulated.

When it does not snow in Vilarinho da Castanheira?

April through October are months without snowfall in Vilarinho da Castanheira.

What is the average length of the day in September in Vilarinho da Castanheira?

In September, the average length of the day is 12.5h.

How long on average sun shines in September in Vilarinho da Castanheira?

The average sunshine in September in Vilarinho da Castanheira, Portugal, is 9.2h.

What is the UV index reading in September in Vilarinho da Castanheira?

In Vilarinho da Castanheira, Portugal, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Vilarinho da Castanheira, Portugal

Average temperature in September - Vilarinho da Castanheira, Portugal
  • Average high temperature in September: 25.6°C

The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (9.4°C).

  • Average low temperature in September: 12.4°C

The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).

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Average pressure in September
Vilarinho da Castanheira, Portugal

Average pressure in September - Vilarinho da Castanheira, Portugal
  • Average pressure in September: 1017.3mbar

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
Vilarinho da Castanheira, Portugal

Average wind speed in September - Vilarinho da Castanheira, Portugal
  • Average wind speed in September: 6.5km/h

The windiest month (with the highest average wind speed) is March (8.6km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).

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Average humidity in September
Vilarinho da Castanheira, Portugal

Average humidity in September - Vilarinho da Castanheira, Portugal
  • Average humidity in September: 59%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in September
Vilarinho da Castanheira, Portugal

Average rainfall in September - Vilarinho da Castanheira, Portugal
  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is July (8mm).

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Average rainfall days in September
Vilarinho da Castanheira, Portugal

Average rainfall days in September - Vilarinho da Castanheira, Portugal
  • Average rainfall days in September: 6.6 days

The month with the highest number of rainy days is April (13.6 days).
The month with the least rainy days is August (3.9 days).

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Average snowfall in September
Vilarinho da Castanheira, Portugal

Average snowfall in September - Vilarinho da Castanheira, Portugal
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (7mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in September
Vilarinho da Castanheira, Portugal

Average snowfall days in September - Vilarinho da Castanheira, Portugal
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Vilarinho da Castanheira, Portugal

Average daylight in September / Average sunshine in September - Vilarinho da Castanheira, Portugal
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 9.2h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 4.1h).

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Average sunshine days in September
Vilarinho da Castanheira, Portugal

Average sunshine days in September - Vilarinho da Castanheira, Portugal
  • Average sunshine days in September: 21.9 days

The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is April (14.1 days).

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Average UV index in September
Vilarinho da Castanheira, Portugal

Average UV index in September - Vilarinho da Castanheira, Portugal
  • Average UV index in September: 5

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Vilarinho da Castanheira, Portugal

Average cloud cover in September - Vilarinho da Castanheira, Portugal
  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in September
Vilarinho da Castanheira, Portugal

Average visibility in September - Vilarinho da Castanheira, Portugal
  • Average visibility in September: 9km

Months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (6km).

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