September weather forecast
Vila Nova de Milfontes, Portugal

September

Weather in September

September, the first month of the autumn in Vila Nova de Milfontes, is also a moderately hot month, with temperature in the range of an average high of 23.5°C (74.3°F) and an average low of 18.8°C (65.8°F).

Temperature

Vila Nova de Milfontes marks the arrival of September with an average high-temperature of a still warm 23.5°C (74.3°F), hardly different from August's 24.2°C (75.6°F). Vila Nova de Milfontes documents an average low-temperature of 18.8°C (65.8°F) for the nights of September.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Vila Nova de Milfontes, in September, during 4.2 rainfall days, 14mm (0.55") of precipitation is typically accumulated. In Vila Nova de Milfontes, during the entire year, the rain falls for 94.7 days and collects up to 328mm (12.91") of precipitation.

Sea temperature

In September, the average sea temperature in Vila Nova de Milfontes is 20.4°C (68.7°F).
Note: Most people find it challenging to enjoy swimming in water that is 20.4°C (68.7°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 07:05 and sunset at 20:04. On the last day of September, sunrise is at 07:30 and sunset at 19:19 WEST.

Sunshine

The average sunshine in September in Vila Nova de Milfontes, Portugal, is 9.4h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What is the usual temperature for Vila Nova de Milfontes in September?
September temperatures in Vila Nova de Milfontes vary between a high-temperature of 23.5°C (74.3°F) and a low-temperature of 18.8°C (65.8°F).
What is the average humidity in September in Vila Nova de Milfontes?
In Vila Nova de Milfontes, the average relative humidity in September is 73%.
How many days does it rain in September in Vila Nova de Milfontes?
In Vila Nova de Milfontes, in September, during 4.2 rainfall days, 14mm (0.55") of precipitation is typically accumulated.
What is the sea water temperature in September in Vila Nova de Milfontes?
In Vila Nova de Milfontes, Portugal, in September, the average water temperature is 20.4°C (68.7°F). For most, swimming in 20.4°C (68.7°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
How many hours of daylight does Vila Nova de Milfontes have in September?
In Vila Nova de Milfontes, the average day length in September is 12h and 25min.
When are sunrise and sunset in September in Vila Nova de Milfontes?
In September, on the first day of the month, sunrise is at 07:05 and sunset at 20:04. On the last day of the month, in Vila Nova de Milfontes, sunrise is at 07:30 and sunset at 19:19 WEST.
How long on average sun shines in September in Vila Nova de Milfontes?
The average sunshine duration in September in Vila Nova de Milfontes is 9.4h.
When is the highest UV index in Vila Nova de Milfontes?
June through September, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index reading in September in Vila Nova de Milfontes?
In Vila Nova de Milfontes, Portugal, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to 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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Vila Nova de Milfontes, Portugal
Average temperature in September
Vila Nova de Milfontes, Portugal
  • Average high temperature in September: 23.5°C

The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is February (14.8°C).

  • Average low temperature in September: 18.8°C

The months with the highest average low temperature are August and September (18.8°C).
The coldest month (with the lowest average low temperature) is February (10.8°C).

Average pressure in September - Vila Nova de Milfontes, Portugal
Average pressure in September
Vila Nova de Milfontes, Portugal
  • Average pressure in September: 1016.9mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).

Average wind speed in September - Vila Nova de Milfontes, Portugal
Average wind speed in September
Vila Nova de Milfontes, Portugal
  • Average wind speed in September: 15km/h

The windiest month (with the highest average wind speed) is February (19.4km/h).
The calmest month (with the lowest average wind speed) is September (15km/h).

Average humidity in September - Vila Nova de Milfontes, Portugal
Average humidity in September
Vila Nova de Milfontes, Portugal
  • Average humidity in September: 73%

The month with the highest relative humidity is April (76%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September - Vila Nova de Milfontes, Portugal
Average rainfall in September
Vila Nova de Milfontes, Portugal
  • Average rainfall in September: 14mm

The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in September - Vila Nova de Milfontes, Portugal
Average rainfall days in September
Vila Nova de Milfontes, Portugal
  • Average rainfall days in September: 4.2 days

The month with the highest number of rainy days is November (13.4 days).
The month with the least rainy days is August (1.1 days).

Average sea temperature in September - Vila Nova de Milfontes, Portugal
Average sea temperature in September
Vila Nova de Milfontes, Portugal
  • Average sea temperature in September: 20.4°C

The best month for swimming (with the highest average sea temperature) is October (20.5°C).
The coldest month (with the lowest average sea temperature) is March (15.6°C).

Average daylight in September / Average sunshine in September - Vila Nova de Milfontes, Portugal
Average daylight in September /
Average sunshine in September
Vila Nova de Milfontes, Portugal
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in September - Vila Nova de Milfontes, Portugal
Average sunshine days in September
Vila Nova de Milfontes, Portugal
  • Average sunshine days in September: 25.1 days

The month with the most sunshine days is August (29.4 days).
The month with the least sunshine days is April (15.3 days).

Average UV index in September - Vila Nova de Milfontes, Portugal
Average UV index in September
Vila Nova de Milfontes, Portugal
  • Average UV index in September: 6

The months with the highest UV index are June, July, August and September (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 - Vila Nova de Milfontes, Portugal
Average cloud cover in September
Vila Nova de Milfontes, Portugal
  • Average cloud cover in September: 16

The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in September - Vila Nova de Milfontes, Portugal
Average visibility in September
Vila Nova de Milfontes, Portugal
  • Average visibility in September: 10km

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

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