September weather forecast and climate
Silveirinha Pequena, Portugal

Weather in September

The first month of the autumn, September, is also a moderately hot month in Silveirinha Pequena, Portugal, with average temperature varying between 23°C (73.4°F) and 16.3°C (61.3°F).

Temperature

In Silveirinha Pequena, the average high-temperature in September is essentially the same as in August - a still warm 23°C (73.4°F). The average low-temperature, in September, is 16.3°C (61.3°F).

Humidity

September and October, with an average relative humidity of 74%, are the least humid months.

Rainfall

In September, the rain falls for 6.2 days. Throughout September, 25mm (0.98") of precipitation is accumulated. Throughout the year, in Silveirinha Pequena, Portugal, there are 130.4 rainfall days, and 585mm (23.03") of precipitation is accumulated.

Daylight

The average length of the day in Silveirinha Pequena is 12.4h.

Sunshine

The average sunshine in September is 9.3h.

UV index

Months with the highest UV index in Silveirinha Pequena are May through September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the ordinary 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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Silveirinha Pequena?

The average high-temperature, in September, in Silveirinha Pequena, is 23°C (73.4°F), while the average low-temperature is 16.3°C (61.3°F).

What are the least humid months in Silveirinha Pequena?

September and October, with an average relative humidity of 74%, are the least humid months in Silveirinha Pequena, Portugal.

What is the average humidity in September in Silveirinha Pequena?

In September, the average relative humidity in Silveirinha Pequena is 74%.

How much does it rain in Silveirinha Pequena in September?

In September, the rain falls for 6.2 days. Throughout September, 25mm (0.98") of precipitation is accumulated.

What is the average length of the day in September in Silveirinha Pequena?

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

How many hours of sunshine does Silveirinha Pequena have in September?

In September, the average sunshine in Silveirinha Pequena, Portugal, is 9.3h.

What is the month with the highest UV index in Silveirinha Pequena?

Months with the highest UV index in Silveirinha Pequena, Portugal, are May through September, with an average maximum UV index of 5.

What is the UV index reading in September in Silveirinha Pequena?

In Silveirinha Pequena, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Silveirinha Pequena, Portugal

Average temperature in September - Silveirinha Pequena, Portugal
  • Average high temperature in September: 23°C

The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (13.7°C).

  • Average low temperature in September: 16.3°C

Months with the highest average low temperature are July and August (16.8°C).
The coldest month (with the lowest average low temperature) is February (9.3°C).

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Average pressure in September
Silveirinha Pequena, Portugal

Average pressure in September - Silveirinha Pequena, Portugal
  • Average pressure in September: 1017mbar

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
Silveirinha Pequena, Portugal

Average wind speed in September - Silveirinha Pequena, Portugal
  • Average wind speed in September: 12.8km/h

The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is September (12.8km/h).

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Average humidity in September
Silveirinha Pequena, Portugal

Average humidity in September - Silveirinha Pequena, Portugal
  • Average humidity in September: 74%

The month with the highest relative humidity is January (78%).
Months with the lowest relative humidity are September and October (74%).

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Average rainfall in September
Silveirinha Pequena, Portugal

Average rainfall in September - Silveirinha Pequena, Portugal
  • Average rainfall in September: 25mm

The wettest month (with the highest rainfall) is November (97mm).
The driest month (with the least rainfall) is July (6mm).

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Average rainfall days in September
Silveirinha Pequena, Portugal

Average rainfall days in September - Silveirinha Pequena, Portugal
  • Average rainfall days in September: 6.2 days

The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (4.5 days).

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Average daylight in September /
Average sunshine in September
Silveirinha Pequena, Portugal

Average daylight in September / Average sunshine in September - Silveirinha Pequena, 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: 9.3h

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
Silveirinha Pequena, Portugal

Average sunshine days in September - Silveirinha Pequena, Portugal
  • Average sunshine days in September: 21.8 days

The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is November (11.9 days).

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Average UV index in September
Silveirinha Pequena, Portugal

Average UV index in September - Silveirinha Pequena, Portugal
  • Average UV index in September: 5

Months with the highest UV index are May, June, July, August and September (UV index 5).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in September
Silveirinha Pequena, Portugal

Average cloud cover in September - Silveirinha Pequena, Portugal
  • Average cloud cover in September: 20

The month with the most cloud cover is January (Cloud cover 42).
Months with the least cloud cover are August and September (Cloud cover 20).

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Average visibility in September
Silveirinha Pequena, Portugal

Average visibility in September - Silveirinha Pequena, Portugal
  • Average visibility in September: 10km

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

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