September weather forecast and climate
Vale de Açores, Portugal

Weather in September

The first month of the autumn, September, is also a moderately hot month in Vale de Açores, Portugal, with average temperature ranging between min 13.5°C (56.3°F) and max 26.5°C (79.7°F).

Temperature

In Vale de Açores, the average high-temperature in September is practically the same as in August - a still moderately hot 26.5°C (79.7°F). The average low-temperature, is 13.5°C (56.3°F).

Humidity

In Vale de Açores, the average relative humidity is 63%.

Rainfall

In Vale de Açores, in September, during 6.2 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In Vale de Açores, during the entire year, the rain falls for 127.4 days and collects up to 613mm (24.13") of precipitation.

Snowfall

In Vale de Açores snow does not fall in May through October and December.

Daylight

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

Sunshine

In September, the average sunshine is 9.3h.

UV index

The average daily maximum UV index in Vale de Açores is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in September in Vale de Açores?

The average high-temperature, in September, in Vale de Açores, is 26.5°C (79.7°F), while the average low-temperature is 13.5°C (56.3°F).

What is the average humidity in September in Vale de Açores?

In September, the average relative humidity in Vale de Açores, Portugal, is 63%.

How many days does it rain in September in Vale de Açores?

In Vale de Açores, Portugal, in September, it is raining for 6.2 days, with typically 21mm (0.83") of accumulated precipitation.

When it does not snow in Vale de Açores?

May through October and December are months without snowfall.

How many hours of daylight does Vale de Açores have in September?

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

How long on average sun shines in September in Vale de Açores?

In September, the average sunshine in Vale de Açores is 9.3h.

What is the UV index reading in September in Vale de Açores?

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

Average temperature in September
Vale de Açores, Portugal

Average temperature in September - Vale de Açores, Portugal
  • Average high temperature in September: 26.5°C

The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (12°C).

  • Average low temperature in September: 13.5°C

The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (4.3°C).

[Resources]

Average pressure in September
Vale de Açores, Portugal

Average pressure in September - Vale de Açores, Portugal
  • Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

[Resources]

Average wind speed in September
Vale de Açores, Portugal

Average wind speed in September - Vale de Açores, Portugal
  • Average wind speed in September: 6.9km/h

The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is September (6.9km/h).

[Resources]

Average humidity in September
Vale de Açores, Portugal

Average humidity in September - Vale de Açores, Portugal
  • Average humidity in September: 63%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (62%).

[Resources]

Average rainfall in September
Vale de Açores, Portugal

Average rainfall in September - Vale de Açores, Portugal
  • Average rainfall in September: 21mm

The wettest month (with the highest rainfall) is November (96mm).
The driest month (with the least rainfall) is July (6mm).

[Resources]

Average rainfall days in September
Vale de Açores, Portugal

Average rainfall days in September - Vale de Açores, Portugal
  • Average rainfall days in September: 6.2 days

Months with the highest number of rainy days are January and April (14.7 days).
The month with the least rainy days is August (3.9 days).

[Resources]

Average snowfall in September
Vale de Açores, Portugal

Average snowfall in September - Vale de Açores, Portugal
  • Average snowfall in September: 0mm

Months with the highest snowfall are January and March (2mm).
Months with the least snowfall are May, June, July, August, September, October and December (0mm).

[Resources]

Average snowfall days in September
Vale de Açores, Portugal

Average snowfall days in September - Vale de Açores, Portugal
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January, February and March (0.3 days).
Months with the least snowfall days are May, June, July, August, September, October and December (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Vale de Açores, Portugal

Average daylight in September / Average sunshine in September - Vale de Açores, 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: 9.3h).

  • Average sunshine in September: 9.3h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 5h).

[Resources]

Average sunshine days in September
Vale de Açores, Portugal

Average sunshine days in September - Vale de Açores, Portugal
  • Average sunshine days in September: 21.9 days

The month with the most sunshine days is August (25 days).
The month with the least sunshine days is November (13.5 days).

[Resources]

Average UV index in September
Vale de Açores, Portugal

Average UV index in September - Vale de Açores, Portugal
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).

[Resources]

Average cloud cover in September
Vale de Açores, Portugal

Average cloud cover in September - Vale de Açores, Portugal
  • Average cloud cover in September: 22

The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).

[Resources]

Average visibility in September
Vale de Açores, Portugal

Average visibility in September - Vale de Açores, Portugal
  • Average visibility in September: 9km

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

[Resources]