September weather forecast and climate
Santar, Portugal

Weather in September

September, the first month of the autumn, in Santar, is also a moderately hot month, with average temperature varying between 26.5°C (79.7°F) and 12.7°C (54.9°F).

Temperature

In Santar, the average high-temperature slightly decreases, from a moderately hot 29.6°C (85.3°F) in August, to a still warm 26.5°C (79.7°F). The average low-temperature, in Santar, is 12.7°C (54.9°F).

Humidity

The average relative humidity in September is 60%.

Rainfall

In September, in Santar, the rain falls for 6.4 days. Throughout September, 26mm (1.02") of precipitation is accumulated. In Santar, during the entire year, the rain falls for 125.6 days and collects up to 558mm (21.97") of precipitation.

Snowfall

April through October and December are months without snowfall in Santar.

Daylight

The average length of the day in Santar is 12.5h.

Sunshine

In Santar, the average sunshine is 9.2h.

UV index

In Santar, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.
[Resources]

FAQ

What is the temperature in September in Santar?

The average high-temperature, in September, in Santar, is 26.5°C (79.7°F), while the average low-temperature is 12.7°C (54.9°F).

What is the average humidity in September in Santar?

In September, the average relative humidity in Santar is 60%.

How many days does it rain in September in Santar?

In Santar, in September, it is raining for 6.4 days, with typically 26mm (1.02") of accumulated precipitation.

When it does not snow in Santar?

In Santar, Portugal, snow does not fall in April through October and December.

What is the average length of the day in September in Santar?

In September, the average length of the day in Santar is 12.5h.

How many hours of sunshine does Santar have in September?

The average sunshine in September is 9.2h.

What is the UV index intensity in September in Santar?

The average daily maximum UV index in September in Santar is 5. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in September
Santar, Portugal

Average temperature in September - Santar, Portugal
  • Average high temperature in September: 26.5°C

The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (10.7°C).

  • Average low temperature in September: 12.7°C

The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).

[Resources]

Average pressure in September
Santar, Portugal

Average pressure in September - Santar, Portugal
  • Average pressure in September: 1016.9mbar

The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

[Resources]

Average wind speed in September
Santar, Portugal

Average wind speed in September - Santar, Portugal
  • Average wind speed in September: 7.1km/h

The windiest month (with the highest average wind speed) is March (9.1km/h).
The calmest month (with the lowest average wind speed) is September (7.1km/h).

[Resources]

Average humidity in September
Santar, Portugal

Average humidity in September - Santar, Portugal
  • Average humidity in September: 60%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (57%).

[Resources]

Average rainfall in September
Santar, Portugal

Average rainfall in September - Santar, Portugal
  • Average rainfall in September: 26mm

The wettest month (with the highest rainfall) is December (92mm).
The driest month (with the least rainfall) is July (6mm).

[Resources]

Average rainfall days in September
Santar, Portugal

Average rainfall days in September - Santar, Portugal
  • Average rainfall days in September: 6.4 days

The month with the highest number of rainy days is November (15.5 days).
The month with the least rainy days is August (3.3 days).

[Resources]

Average snowfall in September
Santar, Portugal

Average snowfall in September - Santar, Portugal
  • Average snowfall in September: 0mm

Months with the highest snowfall are January and February (3mm).
Months with the least snowfall are April, May, June, July, August, September, October and December (0mm).

[Resources]

Average snowfall days in September
Santar, Portugal

Average snowfall days in September - Santar, Portugal
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Santar, Portugal

Average daylight in September / Average sunshine in September - Santar, Portugal
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 9.2h

The month with the most sunshine is July (Average sunshine: 11.5h).
The month with the least sunshine is January (Average sunshine: 4.7h).

[Resources]

Average sunshine days in September
Santar, Portugal

Average sunshine days in September - Santar, Portugal
  • Average sunshine days in September: 22.8 days

The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is April (13 days).

[Resources]

Average UV index in September
Santar, Portugal

Average UV index in September - Santar, Portugal
  • Average UV index in September: 5

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in September
Santar, Portugal

Average cloud cover in September - Santar, Portugal
  • Average cloud cover in September: 22

The month with the most cloud cover is January (Cloud cover 52).
Months with the least cloud cover are July and August (Cloud cover 17).

[Resources]

Average visibility in September
Santar, Portugal

Average visibility in September - Santar, Portugal
  • Average visibility in September: 9km

Months with the highest visibility are June, July, August and September (9km).
Months with the lowest visibility are January and November (7km).

[Resources]