September weather forecast and climate
Portunhos, Portugal

Weather in September

The first month of the autumn, September, is also a moderately hot month in Portunhos, Portugal, with average temperature varying between 25.8°C (78.4°F) and 14.6°C (58.3°F).

Temperature

In September, the average high-temperature is practically the same as in August - a still warm 25.8°C (78.4°F). In Portunhos, in September, the average low-temperature is 14.6°C (58.3°F).

Humidity

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

Rainfall

In September, in Portunhos, the rain falls for 5.9 days. Throughout September, 25mm (0.98") of precipitation is accumulated. In Portunhos, during the entire year, the rain falls for 133.4 days and collects up to 644mm (25.35") of precipitation.

Daylight

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

Sunshine

The average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index in Portunhos is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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.
[Resources]

FAQ

What is the temperature in September in Portunhos?

In September, the average high-temperature is 25.8°C (78.4°F), and the average low-temperature is 14.6°C (58.3°F).

What is the least humid month in Portunhos?

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

What is the average humidity in September in Portunhos?

In Portunhos, Portugal, the average relative humidity in September is 68%.

How much does it rain in Portunhos in September?

In Portunhos, Portugal, 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 in Portunhos?

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

How long on average sun shines in September in Portunhos?

In September, the average sunshine is 9.3h.

How high is the UV index in September in Portunhos?

In September, the average daily maximum UV index in Portunhos is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Portunhos, Portugal

Average temperature in September - Portunhos, 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).

[Resources]

Average pressure in September
Portunhos, Portugal

Average pressure in September - Portunhos, 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).

[Resources]

Average wind speed in September
Portunhos, Portugal

Average wind speed in September - Portunhos, 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).

[Resources]

Average humidity in September
Portunhos, Portugal

Average humidity in September - Portunhos, 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%).

[Resources]

Average rainfall in September
Portunhos, Portugal

Average rainfall in September - Portunhos, 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).

[Resources]

Average rainfall days in September
Portunhos, Portugal

Average rainfall days in September - Portunhos, 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).

[Resources]

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

Average daylight in September / Average sunshine in September - Portunhos, 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: 9.4h).

  • 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).

[Resources]

Average sunshine days in September
Portunhos, Portugal

Average sunshine days in September - Portunhos, 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).

[Resources]

Average UV index in September
Portunhos, Portugal

Average UV index in September - Portunhos, 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 3).

[Resources]

Average cloud cover in September
Portunhos, Portugal

Average cloud cover in September - Portunhos, 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).

[Resources]

Average visibility in September
Portunhos, Portugal

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

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

[Resources]