September weather forecast and climate
Ratoeira, Portugal

Weather in September

The first month of the autumn, September, is also a moderately hot month in Ratoeira, Portugal, with temperature in the range of an average high of 25.3°C (77.5°F) and an average low of 12.4°C (54.3°F).

Temperature

In Ratoeira, the average high-temperature in September slightly decreases, from 29.2°C (84.6°F) in August, to a still warm 25.3°C (77.5°F). The average low-temperature, in September, is 12.4°C (54.3°F).

Humidity

In Ratoeira, the average relative humidity is 55%.

Rainfall

In Ratoeira, during 5.9 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, there are 113.4 rainfall days, and 421mm (16.57") of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in Ratoeira, Portugal, is 12.4h.

Sunshine

The average sunshine in September is 9.5h.

UV index

The average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against sun damage is advised. 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 Ratoeira?

In September, the average high-temperature is 25.3°C (77.5°F), and the average low-temperature is 12.4°C (54.3°F).

What is the average humidity in September in Ratoeira?

In September, the average relative humidity in Ratoeira, Portugal, is 55%.

How much does it rain in Ratoeira in September?

In Ratoeira, Portugal, in September, during 5.9 rainfall days, 19mm (0.75") of precipitation is typically accumulated.

When it does not snow in Ratoeira?

In Ratoeira, Portugal, snow does not fall in May through October.

How many hours of daylight does Ratoeira have in September?

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

How many hours of sunshine does Ratoeira have in September?

In September, the average sunshine in Ratoeira is 9.5h.

What is the UV index intensity in September in Ratoeira?

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

Average temperature in September
Ratoeira, Portugal

Average temperature in September - Ratoeira, Portugal
  • Average high temperature in September: 25.3°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in September: 12.4°C

The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).

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Average pressure in September
Ratoeira, Portugal

Average pressure in September - Ratoeira, Portugal
  • Average pressure in September: 1016.8mbar

The month with the highest atmospheric pressure is December (1023.1mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

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Average wind speed in September
Ratoeira, Portugal

Average wind speed in September - Ratoeira, Portugal
  • Average wind speed in September: 9.1km/h

The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is September (9.1km/h).

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Average humidity in September
Ratoeira, Portugal

Average humidity in September - Ratoeira, Portugal
  • Average humidity in September: 55%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in September
Ratoeira, Portugal

Average rainfall in September - Ratoeira, Portugal
  • Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is December (65mm).
The driest month (with the least rainfall) is August (6mm).

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Average rainfall days in September
Ratoeira, Portugal

Average rainfall days in September - Ratoeira, Portugal
  • Average rainfall days in September: 5.9 days

The month with the highest number of rainy days is April (16.2 days).
The month with the least rainy days is August (2.7 days).

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Average snowfall in September
Ratoeira, Portugal

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

Months with the highest snowfall are January and February (44mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in September
Ratoeira, Portugal

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

The month with the highest number of snowfall days is January (3.9 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Ratoeira, 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: 9.3h).

  • Average sunshine in September: 9.5h

Months with the most sunshine are July and August (Average sunshine: 11.6h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in September
Ratoeira, Portugal

Average sunshine days in September - Ratoeira, Portugal
  • Average sunshine days in September: 22.7 days

The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is April (12.5 days).

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Average UV index in September
Ratoeira, Portugal

Average UV index in September - Ratoeira, 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
Ratoeira, Portugal

Average cloud cover in September - Ratoeira, Portugal
  • Average cloud cover in September: 20

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in September
Ratoeira, Portugal

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

Months with the highest visibility are July, August and September (10km).
Months with the lowest visibility are January, February, April, November and December (8km).

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