September weather forecastFala, Portugal

September

Weather in September

September, the first month of the autumn in Fala, is also a moderately hot month, with temperature in the range of an average high of 27°C (80.6°F) and an average low of 13.6°C (56.5°F).

Temperature

Transitioning from August to September, Fala observes an average high-temperature of a still warm 27°C (80.6°F), differing subtly from the previous month. Throughout September, Fala braces for a considerable drop from daytime highs, with an average low-temperature of 13.6°C (56.5°F).

Heat index

In September, the average heat index is evaluated at 28°C (82.4°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 65%.

Rainfall

In Fala, in September, during 5.6 rainfall days, 23mm (0.91") of precipitation is typically accumulated. In Fala, during the entire year, the rain falls for 119.4 days and collects up to 525mm (20.67") of precipitation.

Daylight

In Fala, the average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 07:01 and sunset at 20:05. On the last day of the month, sunrise is at 07:29 and sunset at 19:17 WEST.

Sunshine

In Fala, the average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

An average high-temperature, in September, in Fala, is 27°C (80.6°F) and the average low-temperature is 13.6°C (56.5°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is evaluated at 28°C (82.4°F).

August and September, with an average relative humidity of 65%, are the least humid months.

The average relative humidity in September is 65%.

In Fala, during September, the rain falls for 5.6 days and regularly aggregates up to 23mm (0.91") of precipitation.

In Fala, the average day length in September is 12h and 27min.

On the first day of September, sunrise is at 07:01 and sunset at 20:05. On the last day of the month, sunrise is at 07:29 and sunset at 19:17 WEST.

In Fala, the average sunshine duration in September is 9.2h.

In September, the average daily maximum UV index in Fala is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Fala, Portugal

  • Average high temperature in September: 27°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (12.9°C).

  • Average low temperature in September: 13.6°C

The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).

Average pressure in September
Fala, Portugal

  • Average pressure in September: 1016.8mbar

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

Average wind speed in September
Fala, Portugal

  • Average wind speed in September: 7.2km/h

The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is September (7.2km/h).

Average humidity in September
Fala, Portugal

  • Average humidity in September: 65%

The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are August and September (65%).

Average rainfall in September
Fala, Portugal

  • Average rainfall in September: 23mm

The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is July (4mm).

Average rainfall days in September
Fala, Portugal

  • Average rainfall days in September: 5.6 days

The month with the highest number of rainy days is April (14.7 days).
The month with the least rainy days is August (2.8 days).

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

  • Average daylight in September: 12h and 30min

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 24min).

  • Average sunshine in September: 9h and 12min

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 0min).

Average sunshine days in September
Fala, Portugal

  • Average sunshine days in September: 23.3 days

The month with the most sunshine days is August (27.5 days).
The months with the least sunshine days are April and November (14.3 days).

Average UV index in September
Fala, Portugal

  • Average UV index in September: 5

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

Average cloud cover in September
Fala, Portugal

  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 22).

Average visibility in September
Fala, Portugal

  • Average visibility in September: 9km

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