September weather forecast and climate
Safira, Portugal

Weather in September

September, the first month of the autumn, in Safira, is still a hot month, with average temperature fluctuating between 15.8°C (60.4°F) and 30°C (86°F).

Temperature

In Safira, the average high-temperature in September slightly decreases, from 33.7°C (92.7°F) in August, to a still hot 30°C (86°F). The average low-temperature, is 15.8°C (60.4°F).

Heat index

In September, the average heat index is calculated to a tropical 32.3°C (90.1°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, metabolic differences, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In September, the average relative humidity in Safira is 57%.

Rainfall

In Safira, it is raining for 4.6 days, with typically 11mm (0.43") of accumulated precipitation. Throughout the year, there are 107.1 rainfall days, and 346mm (13.62") of precipitation is accumulated.

Daylight

The average length of the day in Safira, Portugal, is 12.4h.

Sunshine

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

UV index

The average daily maximum UV index in Safira, Portugal, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.
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FAQ

What is the temperature in September in Safira?

The average high-temperature, in September, in Safira, Portugal, is 30°C (86°F), while the average low-temperature is 15.8°C (60.4°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, is estimated at 32.3°C (90.1°F).

What is the average humidity in September in Safira?

In Safira, the average relative humidity in September is 57%.

How many days does it rain in September in Safira?

In September, in Safira, the rain falls for 4.6 days. Throughout September, 11mm (0.43") of precipitation is accumulated.

How many hours of daylight does Safira have in September?

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

How many hours of sunshine does Safira have in September?

The average sunshine in September in Safira is 9.3h.

What is the UV index reading in September in Safira?

In September, the average daily maximum UV index in Safira is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Safira, Portugal

Average temperature in September - Safira, Portugal
  • Average high temperature in September: 30°C

The warmest month (with the highest average high temperature) is August (33.7°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in September: 15.8°C

Months with the highest average low temperature are July and August (16.1°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).

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Average pressure in September
Safira, Portugal

Average pressure in September - Safira, Portugal
  • Average pressure in September: 1016.5mbar

The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed in September
Safira, Portugal

Average wind speed in September - Safira, Portugal
  • Average wind speed in September: 9.3km/h

The windiest month (with the highest average wind speed) is March (11.5km/h).
The calmest month (with the lowest average wind speed) is September (9.3km/h).

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Average humidity in September
Safira, Portugal

Average humidity in September - Safira, Portugal
  • Average humidity in September: 57%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (54%).

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Average rainfall in September
Safira, Portugal

Average rainfall in September - Safira, Portugal
  • Average rainfall in September: 11mm

The wettest month (with the highest rainfall) is April (53mm).
The driest months (with the least rainfall) are July and August (1mm).

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Average rainfall days in September
Safira, Portugal

Average rainfall days in September - Safira, Portugal
  • Average rainfall days in September: 4.6 days

Months with the highest number of rainy days are March and April (14.9 days).
The month with the least rainy days is August (1.3 days).

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

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

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 9.3h

The month with the most sunshine is July (Average sunshine: 11.5h).
The month with the least sunshine is January (Average sunshine: 5.3h).

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Average sunshine days in September
Safira, Portugal

Average sunshine days in September - Safira, Portugal
  • Average sunshine days in September: 24 days

The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is April (13.4 days).

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Average UV index in September
Safira, Portugal

Average UV index in September - Safira, Portugal
  • Average UV index in September: 6

The month with the highest UV index is August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Safira, Portugal

Average cloud cover in September - Safira, Portugal
  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 12).

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Average visibility in September
Safira, Portugal

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

The month with the highest visibility is June (10km).
Months with the lowest visibility are January and April (8km).

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