September weather forecast
Carapelhos, Portugal

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Carapelhos, Portugal, with temperature in the range of an average low of 14.6°C (58.3°F) and an average high of 25.8°C (78.4°F).

Temperature

As Carapelhos transitions into September, the average high-temperature stands at a still warm 25.8°C (78.4°F), offering little variation from the preceding month. During the nights in September, Carapelhos experiences a consistent average temperature of 14.6°C (58.3°F).

Humidity

September is the least humid month, with an average relative humidity of 68%.

Rainfall

In Carapelhos, in September, during 5.9 rainfall days, 25mm (0.98") of precipitation is typically accumulated. Throughout the year, there are 133.4 rainfall days, and 644mm (25.35") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 07:02 and sunset at 20:06. On the last day of September, sunrise is at 07:30 and sunset at 19:18 WEST.

Sunshine

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

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

What is the temperature in September?
September temperatures vary between a high-temperature of 25.8°C (78.4°F) and a low-temperature of 14.6°C (58.3°F). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 29°C (84.2°F).
What is the least humid month?
The least humid month is September, with an average relative humidity of 68%.
What is the average humidity in September?
In September, the average relative humidity is 68%.
How much does it rain in September?
In Carapelhos, in September, it is raining for 5.9 days, with typically 25mm (0.98") of accumulated precipitation.
What is the average length of the day in September?
The average day length in September is 12h and 28min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 07:02 and sunset at 20:06. On the last day of the month, in Carapelhos, sunrise is at 07:30 and sunset at 19:18 WEST.
How many hours of sunshine does Carapelhos have in September?
In Carapelhos, the average sunshine duration in September is 9.3h.
What is the UV index intensity in September?
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Carapelhos, Portugal
  • Average high temperature in September: 25.8°C

The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (13.3°C).

  • Average low temperature in September: 14.6°C

The month with the highest average low temperature is August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).

Average pressure in September
Carapelhos, Portugal
  • Average pressure in September: 1016.9mbar

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

Average wind speed in September
Carapelhos, Portugal
  • Average wind speed in September: 8.7km/h

The windiest month (with the highest average wind speed) is February (10.9km/h).
The calmest month (with the lowest average wind speed) is September (8.7km/h).

Average humidity in September
Carapelhos, Portugal
  • Average humidity in September: 68%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is September (68%).

Average rainfall in September
Carapelhos, Portugal
  • Average rainfall in September: 25mm

The wettest month (with the highest rainfall) is November (99mm).
The driest month (with the least rainfall) is July (7mm).

Average rainfall days in September
Carapelhos, Portugal
  • Average rainfall days in September: 5.9 days

The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (3.9 days).

Average daylight in September /
Average sunshine in September
Carapelhos, 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 12min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in September
Carapelhos, Portugal
  • Average sunshine days in September: 22.5 days

The month with the most sunshine days is August (24.2 days).
The month with the least sunshine days is November (11.3 days).

Average UV index in September
Carapelhos, 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 3).

Average cloud cover in September
Carapelhos, Portugal
  • Average cloud cover in September: 21

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is September (Cloud cover 21).

Average visibility in September
Carapelhos, Portugal
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (9km).
The months with the lowest visibility are July and August (8km).

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