September weather forecast and climate
Sidrós, Portugal

Weather in September

September, the first month of the autumn, in Sidrós, is also a moderately hot month, with temperature in the range of an average low of 12.5°C (54.5°F) and an average high of 25.4°C (77.7°F).

Temperature

In September, the average high-temperature is practically the same as in August - a still moderately hot 25.4°C (77.7°F). In Sidrós, the average low-temperature is 12.5°C (54.5°F).

Humidity

In Sidrós, the average relative humidity in September is 64%.

Rainfall

In September, the rain falls for 5.7 days. Throughout September, 23mm (0.91") of precipitation is accumulated. Throughout the year, in Sidrós, Portugal, there are 132.3 rainfall days, and 791mm (31.14") of precipitation is accumulated.

Snowfall

In Sidrós snow does not fall in April through October and December.

Daylight

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

Sunshine

The average sunshine in September is 9h.

UV index

In Sidrós, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Sidrós?

The average high-temperature, in September, in Sidrós, Portugal, is 25.4°C (77.7°F), while the average low-temperature is 12.5°C (54.5°F).

What is the average humidity in September in Sidrós?

The average relative humidity in September in Sidrós, Portugal, is 64%.

How much does it rain in Sidrós in September?

In Sidrós, Portugal, during September, the rain falls for 5.7 days and regularly aggregates up to 23mm (0.91") of precipitation.

When it does not snow in Sidrós?

April through October and December are months without snowfall in Sidrós.

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

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

How many hours of sunshine does Sidrós have in September?

The average sunshine in September in Sidrós is 9h.

What is the UV index intensity in September in Sidrós?

In Sidrós, Portugal, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in September
Sidrós, Portugal

Average temperature in September - Sidrós, Portugal
  • Average high temperature in September: 25.4°C

The warmest months (with the highest average high temperature) are July and August (27.8°C).
The month with the lowest average high temperature is January (10.8°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is February (3.5°C).

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Average pressure in September
Sidrós, Portugal

Average pressure in September - Sidrós, Portugal
  • Average pressure in September: 1017.5mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

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Average wind speed in September
Sidrós, Portugal

Average wind speed in September - Sidrós, Portugal
  • Average wind speed in September: 6.4km/h

The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).

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Average humidity in September
Sidrós, Portugal

Average humidity in September - Sidrós, Portugal
  • Average humidity in September: 64%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (62%).

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Average rainfall in September
Sidrós, Portugal

Average rainfall in September - Sidrós, Portugal
  • Average rainfall in September: 23mm

The wettest month (with the highest rainfall) is December (135mm).
The driest month (with the least rainfall) is July (7mm).

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Average rainfall days in September
Sidrós, Portugal

Average rainfall days in September - Sidrós, Portugal
  • Average rainfall days in September: 5.7 days

The month with the highest number of rainy days is January (16.2 days).
The month with the least rainy days is August (3.2 days).

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Average snowfall in September
Sidrós, Portugal

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

The month with the highest snowfall is January (5mm).
Months with the least snowfall are April, May, June, July, August, September, October and December (0mm).

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Average snowfall days in September
Sidrós, Portugal

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

Months with the highest number of snowfall days are January and February (0.3 days).
Months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).

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

Average daylight in September / Average sunshine in September - Sidrós, Portugal
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in September
Sidrós, Portugal

Average sunshine days in September - Sidrós, Portugal
  • Average sunshine days in September: 23.2 days

The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is November (12.2 days).

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Average UV index in September
Sidrós, Portugal

Average UV index in September - Sidrós, 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 and February (UV index 2).

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Average cloud cover in September
Sidrós, Portugal

Average cloud cover in September - Sidrós, Portugal
  • Average cloud cover in September: 26

The month with the most cloud cover is January (Cloud cover 55).
Months with the least cloud cover are July and August (Cloud cover 22).

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Average visibility in September
Sidrós, Portugal

Average visibility in September - Sidrós, Portugal
  • Average visibility in September: 9km

Months with the highest visibility are July, August and September (9km).
Months with the lowest visibility are January, February, November and December (7km).

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