September weather forecast
Porto de Mós, Portugal

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Weather in September

September, the first month of the autumn in Porto de Mós, is still a warm month, with temperature in the range of an average low of 15.7°C (60.3°F) and an average high of 25.4°C (77.7°F).

Temperature

Shifting into September, Porto de Mós records an average high-temperature of a still moderately hot 25.4°C (77.7°F), presenting minor fluctuations compared to the previous month. Throughout September, Porto de Mós records an average temperature of 15.7°C (60.3°F) at night.

Humidity

The least humid month in Porto de Mós is September, with an average relative humidity of 70%.

Rainfall

In Porto de Mós, in September, during 5.7 rainfall days, 18mm (0.71") of precipitation is typically accumulated. In Porto de Mós, Portugal, during the entire year, the rain falls for 103.6 days and collects up to 373mm (14.69") of precipitation.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 07:03 and sunset at 20:06. On the last day of the month, sunrise is at 07:30 and sunset at 19:19 WEST.

Sunshine

In Porto de Mós, the average sunshine in September is 9.1h.

UV index

In Porto de Mós, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What are the temperatures in September?

Porto de Mós in September has an average high-temperature of 25.4°C (77.7°F) and an average low-temperature of 15.7°C (60.3°F).

What is the least humid month?

September is the least humid month, with an average relative humidity of 70%.

What is the average humidity in September?

The average relative humidity in September is 70%.

How much does it rain in September?

In Porto de Mós, during September, the rain falls for 5.7 days and regularly aggregates up to 18mm (0.71") of precipitation.

How many hours of daylight does Porto de Mós have in September?

The average day length in September is 12h and 27min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 07:03 and sunset at 20:06. On the last day of the month, sunrise is at 07:30 and sunset at 19:19 WEST.

How long on average sun shines in September?

In September, the average sunshine duration is 9.1h.

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 health risk from exposure to Sun's UV rays.

Average temperature in September
Porto de Mós, Portugal

Average temperature in September - Porto de Mós, Portugal
  • Average high temperature in September: 25.4°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (13.7°C).

  • Average low temperature in September: 15.7°C

The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (7.9°C).

Average pressure in September
Porto de Mós, Portugal

Average pressure in September - Porto de Mós, Portugal
  • Average pressure in September: 1016.8mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in September
Porto de Mós, Portugal

Average wind speed in September - Porto de Mós, Portugal
  • Average wind speed in September: 11.9km/h

The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is September (11.9km/h).

Average humidity in September
Porto de Mós, Portugal

Average humidity in September - Porto de Mós, Portugal
  • Average humidity in September: 70%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is September (70%).

Average rainfall in September
Porto de Mós, Portugal

Average rainfall in September - Porto de Mós, Portugal
  • Average rainfall in September: 18mm

The wettest month (with the highest rainfall) is November (66mm).
The driest months (with the least rainfall) are July and August (3mm).

Average rainfall days in September
Porto de Mós, Portugal

Average rainfall days in September - Porto de Mós, Portugal
  • Average rainfall days in September: 5.7 days

The month with the highest number of rainy days is November (13.4 days).
The month with the least rainy days is August (2.4 days).

Average daylight in September /
Average sunshine in September
Porto de Mós, Portugal

Average daylight in September / Average sunshine in September - Porto de Mós, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in September
Porto de Mós, Portugal

Average sunshine days in September - Porto de Mós, Portugal
  • Average sunshine days in September: 24.1 days

The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is November (15.7 days).

Average UV index in September
Porto de Mós, Portugal

Average UV index in September - Porto de Mós, Portugal
  • Average UV index in September: 5

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

Average cloud cover in September
Porto de Mós, Portugal

Average cloud cover in September - Porto de Mós, Portugal
  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 24).

Average visibility in September
Porto de Mós, Portugal

Average visibility in September - Porto de Mós, Portugal
  • Average visibility in September: 9km

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

Porto de Mós, Portugal

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