September weather forecast
Rio de Loba, Portugal

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Weather in September

September, the first month of the autumn in Rio de Loba, is also a moderately hot month, with an average temperature ranging between max 26.5°C (79.7°F) and min 12.5°C (54.5°F).

Temperature

As September arrives, Rio de Loba's weather displays a minor decrease in high-temperatures, transitioning from August's 29.6°C (85.3°F) to a still moderately hot 26.5°C (79.7°F). September nights are characterized by a notable drop from daytime highs, with an average low-temperature of 12.5°C (54.5°F).

Humidity

In Rio de Loba, the average relative humidity in September is 60%.

Rainfall

In Rio de Loba, in September, it is raining for 6.2 days, with typically 21mm (0.83") of accumulated precipitation. In Rio de Loba, Portugal, during the entire year, the rain falls for 125.4 days and collects up to 553mm (21.77") of precipitation.

Snowfall

April through October and December are months without snowfall in Rio de Loba.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September in Rio de Loba, sunrise is at 06:59 and sunset at 20:03. On the last day of the month, sunrise is at 07:27 and sunset at 19:15 WEST.

Sunshine

In Rio de Loba, the average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 5 during September leads to these instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What are September temperatures in Rio de Loba?

The high-temperature, in September, in Rio de Loba, is 26.5°C (79.7°F), while the low-temperature averages to 12.5°C (54.5°F). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 32°C (89.6°F).

What is the average humidity in September in Rio de Loba?

In September, the average relative humidity is 60%.

How many days does it rain in September in Rio de Loba?

In September, the rain falls for 6.2 days. Throughout September, 21mm (0.83") of precipitation is accumulated.

When it does not snow in Rio de Loba?

April through October and December are months without snowfall.

What is the average length of the day in September in Rio de Loba?

In Rio de Loba, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Rio de Loba?

On the first day of September in Rio de Loba, sunrise is at 06:59 and sunset at 20:03. On the last day of the month, sunrise is at 07:27 and sunset at 19:15 WEST.

How many hours of sunshine does Rio de Loba have in September?

In Rio de Loba, Portugal, the average sunshine duration in September is 9.3h.

What is the UV index reading in September in Rio de Loba?

In September, the average daily maximum UV index in Rio de Loba, Portugal, is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Rio de Loba, Portugal

Average temperature in September - Rio de Loba, Portugal
  • Average high temperature in September: 26.5°C

The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (10.7°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).

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Average pressure in September
Rio de Loba, Portugal

Average pressure in September - Rio de Loba, Portugal
  • Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

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Average wind speed in September
Rio de Loba, Portugal

Average wind speed in September - Rio de Loba, Portugal
  • Average wind speed in September: 7km/h

The windiest month (with the highest average wind speed) is March (9.1km/h).
The calmest month (with the lowest average wind speed) is September (7km/h).

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Average humidity in September
Rio de Loba, Portugal

Average humidity in September - Rio de Loba, Portugal
  • Average humidity in September: 60%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (57%).

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Average rainfall in September
Rio de Loba, Portugal

Average rainfall in September - Rio de Loba, Portugal
  • Average rainfall in September: 21mm

The wettest month (with the highest rainfall) is December (92mm).
The driest month (with the least rainfall) is July (6mm).

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Average rainfall days in September
Rio de Loba, Portugal

Average rainfall days in September - Rio de Loba, Portugal
  • Average rainfall days in September: 6.2 days

The month with the highest number of rainy days is November (15.5 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall in September
Rio de Loba, Portugal

Average snowfall in September - Rio de Loba, Portugal
  • Average snowfall in September: 0mm

The months with the highest snowfall are January and February (3mm).
The 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
Rio de Loba, Portugal

Average snowfall days in September - Rio de Loba, Portugal
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The 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
Rio de Loba, Portugal

Average daylight in September / Average sunshine in September - Rio de Loba, Portugal
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in September
Rio de Loba, Portugal

Average sunshine days in September - Rio de Loba, Portugal
  • Average sunshine days in September: 22.9 days

The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is April (13 days).

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Average UV index in September
Rio de Loba, Portugal

Average UV index in September - Rio de Loba, Portugal
  • Average UV index in September: 5

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

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Average cloud cover in September
Rio de Loba, Portugal

Average cloud cover in September - Rio de Loba, Portugal
  • Average cloud cover in September: 22

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 17).

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Average visibility in September
Rio de Loba, Portugal

Average visibility in September - Rio de Loba, Portugal
  • Average visibility in September: 9km

The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January and November (7km).

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Rio de Loba, Portugal

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