September weather forecast and climate
Monte Bom, Portugal

Weather in September

September, the first month of the autumn, in Monte Bom, is also a moderately hot month, with average temperature fluctuating between 23.9°C (75°F) and 17.5°C (63.5°F).

Temperature

In Monte Bom, the average high-temperature in September is almost the same as in August - a still warm 23.9°C (75°F). In September, the average low-temperature is 17.5°C (63.5°F).

Humidity

Months with the lowest humidity are May, September and October, with an average relative humidity of 73%.

Rainfall

In Monte Bom, in September, it is raining for 6.4 days, with typically 20mm (0.79") of accumulated precipitation. In Monte Bom, Portugal, during the entire year, the rain falls for 118.2 days and collects up to 405mm (15.94") of precipitation.

Daylight

The average length of the day in Monte Bom, Portugal, is 12.4h.

Sunshine

In September, the average sunshine in Monte Bom is 9.3h.

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 the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Monte Bom?

In Monte Bom, Portugal, in September, the average high-temperature is 23.9°C (75°F), and the average low-temperature is 17.5°C (63.5°F).

What are the least humid months in Monte Bom?

May, September and October, with an average relative humidity of 73%, are the least humid months in Monte Bom, Portugal.

What is the average humidity in September in Monte Bom?

The average relative humidity in September is 73%.

How many days does it rain in September in Monte Bom?

In Monte Bom, Portugal, in September, during 6.4 rainfall days, 20mm (0.79") of precipitation is typically accumulated.

What is the average length of the day in September in Monte Bom?

In September, the average length of the day in Monte Bom, Portugal, is 12.4h.

How many hours of sunshine does Monte Bom have in September?

In Monte Bom, Portugal, the average sunshine in September is 9.3h.

How high is the UV index in September in Monte Bom?

In September, the average daily maximum UV index in Monte Bom is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Monte Bom, Portugal

Average temperature in September - Monte Bom, Portugal
  • Average high temperature in September: 23.9°C

The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (14.5°C).

  • Average low temperature in September: 17.5°C

The month with the highest average low temperature is July (17.8°C).
The coldest month (with the lowest average low temperature) is February (10°C).

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Average pressure in September
Monte Bom, Portugal

Average pressure in September - Monte Bom, 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 (1015.7mbar).

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Average wind speed in September
Monte Bom, Portugal

Average wind speed in September - Monte Bom, Portugal
  • Average wind speed in September: 15.1km/h

The windiest month (with the highest average wind speed) is February (18.7km/h).
The calmest month (with the lowest average wind speed) is October (15km/h).

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Average humidity in September
Monte Bom, Portugal

Average humidity in September - Monte Bom, Portugal
  • Average humidity in September: 73%

The month with the highest relative humidity is January (77%).
Months with the lowest relative humidity are May, September and October (73%).

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Average rainfall in September
Monte Bom, Portugal

Average rainfall in September - Monte Bom, Portugal
  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is November (75mm).
The driest month (with the least rainfall) is July (3mm).

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Average rainfall days in September
Monte Bom, Portugal

Average rainfall days in September - Monte Bom, Portugal
  • Average rainfall days in September: 6.4 days

The month with the highest number of rainy days is November (14.6 days).
The month with the least rainy days is August (2.6 days).

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Average daylight in September /
Average sunshine in September
Monte Bom, Portugal

Average daylight in September / Average sunshine in September - Monte Bom, Portugal
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 9.3h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is January (Average sunshine: 5.3h).

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Average sunshine days in September
Monte Bom, Portugal

Average sunshine days in September - Monte Bom, Portugal
  • Average sunshine days in September: 22.3 days

The month with the most sunshine days is July (26.4 days).
The month with the least sunshine days is November (12.8 days).

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Average UV index in September
Monte Bom, Portugal

Average UV index in September - Monte Bom, Portugal
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in September
Monte Bom, Portugal

Average cloud cover in September - Monte Bom, Portugal
  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
Monte Bom, Portugal

Average visibility in September - Monte Bom, Portugal
  • Average visibility in September: 10km

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

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