September weather forecast
Avenal, Portugal

September

Weather in September

September, the first month of the autumn in Avenal, is still a warm month, with an average temperature ranging between min 16.9°C (62.4°F) and max 24.9°C (76.8°F).

Temperature

September's arrival brings an average high-temperature of a still warm 24.9°C (76.8°F), demonstrating subtle variation from the preceding month. In Avenal, an average nighttime temperature of 16.9°C (62.4°F) is expected during September.

Humidity

September and October, with an average relative humidity of 72%, are the least humid months in Avenal.

Rainfall

In Avenal, during September, the rain falls for 6.6 days and regularly aggregates up to 20mm (0.79") of precipitation. In Avenal, during the entire year, the rain falls for 118.8 days and collects up to 406mm (15.98") of precipitation.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 07:05 and sunset at 20:07. On the last day of September, sunrise is at 07:32 and sunset at 19:20 WEST.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In September, the average daily maximum UV index in Avenal is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

What are September temperatures in Avenal?
The average high-temperature and low-temperature in Avenal during September are 24.9°C (76.8°F) and 16.9°C (62.4°F) respectively.
What are the least humid months in Avenal?
The months with the lowest humidity in Avenal, Portugal, are September and October, with an average relative humidity of 72%.
What is the average humidity in September in Avenal?
The average relative humidity in September in Avenal, Portugal, is 72%.
How much does it rain in Avenal in September?
In September, in Avenal, Portugal, the rain falls for 6.6 days. Throughout September, 20mm (0.79") of precipitation is accumulated.
How many hours of daylight does Avenal have in September?
The average day length in September in Avenal, Portugal, is 12h and 26min.
When is the sunrise / sunset in September in Avenal?
In September, on the first day of the month, sunrise is at 07:05 and sunset at 20:07. On the last day of the month, in Avenal, Portugal, sunrise is at 07:32 and sunset at 19:20 WEST.
How many hours of sunshine does Avenal have in September?
In Avenal, Portugal, the average sunshine duration in September is 9.3h.
How high is the UV index in September in Avenal?
In September, the average daily maximum UV index in Avenal, Portugal, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Avenal, Portugal
  • Average high temperature in September: 24.9°C

The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (14.3°C).

  • Average low temperature in September: 16.9°C

The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is February (9.5°C).

Average pressure in September
Avenal, Portugal
  • Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).

Average wind speed in September
Avenal, Portugal
  • Average wind speed in September: 14.2km/h

The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is October (14km/h).

Average humidity in September
Avenal, Portugal
  • Average humidity in September: 72%

The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are September and October (72%).

Average rainfall in September
Avenal, Portugal
  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is November (74mm).
The driest month (with the least rainfall) is July (3mm).

Average rainfall days in September
Avenal, Portugal
  • Average rainfall days in September: 6.6 days

The month with the highest number of rainy days is November (14.8 days).
The month with the least rainy days is August (3.1 days).

Average daylight in September /
Average sunshine in September
Avenal, Portugal
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in September
Avenal, Portugal
  • Average sunshine days in September: 22 days

The month with the most sunshine days is July (26.5 days).
The month with the least sunshine days is November (12.8 days).

Average UV index in September
Avenal, 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, April, November and December (UV index 4).

Average cloud cover in September
Avenal, Portugal
  • Average cloud cover in September: 20

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Avenal, Portugal
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).

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