September weather forecast
Tentúgal, Portugal

September

Weather in September

September, the first month of the autumn in Tentúgal, is also a moderately hot month, with temperature in the range of an average low of 56.5°F and an average high of 80.6°F.

Temperature

Tentúgal's shift into September is marked by a subtle change to a still warm 80.6°F from August's 84.6°F in temperature. September nights experience a distinct temperature drop from the daily highs, with an average low-temperature of 56.5°F.

Heat index

The heat index in September is calculated to be 82.4°F. Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

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

Rainfall

In Tentúgal, in September, it is raining for 5.6 days, with typically 0.91" of accumulated precipitation. In Tentúgal, during the entire year, the rain falls for 119.4 days and collects up to 20.67" of precipitation.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September in Tentúgal, sunrise is at 07:02 and sunset at 20:05. On the last day of the month, sunrise is at 07:30 and sunset at 19:18 WEST.

Sunshine

The average sunshine in September is 9.2h.

UV index

In Tentúgal, Portugal, 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 exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

What is the usual temperature for Tentúgal in September?
An average high-temperature, in September, in Tentúgal, is 80.6°F and the average low-temperature is 56.5°F. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is calculated to be 82.4°F.
What are the least humid months?
The months with the lowest humidity are August and September, with an average relative humidity of 65%.
What is the average humidity in September?
The average relative humidity in September is 65%.
How much does it rain in September?
In Tentúgal, Portugal, during September, the rain falls for 5.6 days and regularly aggregates up to 0.91" of precipitation.
What is the average length of the day in September?
In September, the average day length is 12h and 27min.
When are sunrise and sunset in September?
On the first day of September, sunrise is at 07:02 and sunset at 20:05. On the last day of the month, sunrise is at 07:30 and sunset at 19:18 WEST.
How long on average sun shines in September?
In Tentúgal, the average sunshine duration in September is 9.2h.
How high is the UV index in September?
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
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
Tentúgal, Portugal
  • Average high temperature in September: 80.6°F

The warmest month (with the highest average high temperature) is August (84.6°F).
The month with the lowest average high temperature is January (55.2°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (41.7°F).

Average pressure in September
Tentúgal, Portugal
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is December (30.2"Hg).
The month with the lowest atmospheric pressure is April (29.98"Hg).

Average wind speed in September
Tentúgal, Portugal
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is March (5.6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity in September
Tentúgal, 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
Tentúgal, Portugal
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is November (3.03").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in September
Tentúgal, 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
Tentúgal, 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 24min).

  • Average sunshine in September: 9h and 1min

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
Tentúgal, 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
Tentúgal, 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
Tentúgal, 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
Tentúgal, Portugal
  • Average visibility in September: 6mi

The months with the highest visibility are June, September, October and December (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August and November (5mi).

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