September weather forecast and climate
Pombalinho, Portugal

Weather in September

September, the first month of the autumn, in Pombalinho, is still a warm month, with average temperature varying between 28.6°C (83.5°F) and 15.2°C (59.4°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a warm 28.6°C (83.5°F). In Pombalinho, the average low-temperature is 15.2°C (59.4°F).

Heat index

In September, the average heat index is calculated to a hot 30.8°C (87.4°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, pregnancy, wind). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Pombalinho, the average relative humidity in September is 63%.

Rainfall

In Pombalinho, it is raining for 5.7 days, with typically 19mm (0.75") of accumulated precipitation. In Pombalinho, during the entire year, the rain falls for 108.1 days and collects up to 337mm (13.27") of precipitation.

Daylight

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

Sunshine

The average sunshine in Pombalinho is 9.3h.

UV index

In Pombalinho, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
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 Pombalinho?

The average high-temperature, in September, in Pombalinho, is 28.6°C (83.5°F), while the average low-temperature is 15.2°C (59.4°F). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that combines air temperature and relative humidity, is calculated to 30.8°C (87.4°F).

What is the average humidity in September in Pombalinho?

The average relative humidity in September is 63%.

How much does it rain in Pombalinho in September?

In September, in Pombalinho, Portugal, the rain falls for 5.7 days. Throughout September, 19mm (0.75") of precipitation is accumulated.

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

In September, the average length of the day in Pombalinho, Portugal, is 12.4h.

How many hours of sunshine does Pombalinho have in September?

The average sunshine in September in Pombalinho is 9.3h.

How high is the UV index in September in Pombalinho?

In September, the average daily maximum UV index in Pombalinho is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Pombalinho, Portugal

Average temperature in September - Pombalinho, Portugal
  • Average high temperature in September: 28.6°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in September: 15.2°C

The month with the highest average low temperature is July (15.8°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).

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Average pressure in September
Pombalinho, Portugal

Average pressure in September - Pombalinho, Portugal
  • Average pressure in September: 1016.7mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

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Average wind speed in September
Pombalinho, Portugal

Average wind speed in September - Pombalinho, Portugal
  • Average wind speed in September: 10.6km/h

The windiest month (with the highest average wind speed) is July (13.2km/h).
The calmest months (with the lowest average wind speed) are September and October (10.6km/h).

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Average humidity in September
Pombalinho, Portugal

Average humidity in September - Pombalinho, Portugal
  • Average humidity in September: 63%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (62%).

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Average rainfall in September
Pombalinho, Portugal

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

The wettest month (with the highest rainfall) is November (53mm).
The driest months (with the least rainfall) are July and August (3mm).

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Average rainfall days in September
Pombalinho, Portugal

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

The month with the highest number of rainy days is November (13.9 days).
The month with the least rainy days is August (2.4 days).

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

Average daylight in September / Average sunshine in September - Pombalinho, Portugal
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
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
Pombalinho, Portugal

Average sunshine days in September - Pombalinho, Portugal
  • Average sunshine days in September: 23.3 days

The month with the most sunshine days is July (27.3 days).
Months with the least sunshine days are April and November (14.6 days).

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Average UV index in September
Pombalinho, Portugal

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Pombalinho, Portugal

Average cloud cover in September - Pombalinho, Portugal
  • Average cloud cover in September: 21

The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
Pombalinho, Portugal

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

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

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