September weather forecast and climate
Rato, Portugal

Weather in September

September, the first month of the autumn, in Rato, is also a moderately hot month, with average temperature varying between 15.3°C (59.5°F) and 24.5°C (76.1°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still moderately hot 24.5°C (76.1°F). In Rato, in September, the average low-temperature is 15.3°C (59.5°F).

Humidity

With an average relative humidity of 70%, September is the least humid month in Rato.

Rainfall

In Rato, Portugal, in September, during 5.8 rainfall days, 23mm (0.91") of precipitation is typically accumulated. In Rato, during the entire year, the rain falls for 125.4 days and collects up to 619mm (24.37") of precipitation.

Daylight

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

Sunshine

In September, the average sunshine is 9.3h.

UV index

Months with the highest UV index in Rato are May through September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
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. 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 Rato?

In Rato, in September, the average high-temperature is 24.5°C (76.1°F), and the average low-temperature is 15.3°C (59.5°F).

What is the least humid month in Rato?

September is the least humid month in Rato, with an average relative humidity of 70%.

What is the average humidity in September in Rato?

In Rato, the average relative humidity in September is 70%.

How much does it rain in Rato in September?

In September, in Rato, Portugal, the rain falls for 5.8 days. Throughout September, 23mm (0.91") of precipitation is accumulated.

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

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

How long on average sun shines in September in Rato?

In September, the average sunshine in Rato is 9.3h.

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

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

How high is the UV index in September in Rato?

In September, the average daily maximum UV index in Rato, Portugal, 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
Rato, Portugal

Average temperature in September - Rato, Portugal
  • Average high temperature in September: 24.5°C

The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is January (13.3°C).

  • Average low temperature in September: 15.3°C

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (7.6°C).

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Average pressure in September
Rato, Portugal

Average pressure in September - Rato, Portugal
  • Average pressure in September: 1017.1mbar

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
Rato, Portugal

Average wind speed in September - Rato, Portugal
  • Average wind speed in September: 9.8km/h

The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).

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Average humidity in September
Rato, Portugal

Average humidity in September - Rato, Portugal
  • Average humidity in September: 70%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (70%).

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Average rainfall in September
Rato, Portugal

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

The wettest month (with the highest rainfall) is November (94mm).
The driest month (with the least rainfall) is July (6mm).

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Average rainfall days in September
Rato, Portugal

Average rainfall days in September - Rato, Portugal
  • Average rainfall days in September: 5.8 days

The month with the highest number of rainy days is November (14.9 days).
The month with the least rainy days is August (3.3 days).

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

Average daylight in September / Average sunshine in September - Rato, 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: 9.3h

The month with the most sunshine is July (Average sunshine: 11.3h).
The month with the least sunshine is January (Average sunshine: 5.2h).

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Average sunshine days in September
Rato, Portugal

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

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is November (12.9 days).

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Average UV index in September
Rato, Portugal

Average UV index in September - Rato, Portugal
  • Average UV index in September: 5

Months with the highest UV index are May, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Rato, Portugal

Average cloud cover in September - Rato, Portugal
  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 43).
Months with the least cloud cover are July, August and September (Cloud cover 19).

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Average visibility in September
Rato, Portugal

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

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

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