September weather forecast
São Mateus do Sul, Brazil

September

Weather in September

September, the first month of the spring in São Mateus do Sul, is a warm month, with an average temperature varying between 11.7°C (53.1°F) and 23.3°C (73.9°F).

Temperature

São Mateus do Sul, Brazil, records an average high-temperature of a warm 23.3°C (73.9°F) in September, closely mirroring the climate of the previous month. An average low-temperature of 11.7°C (53.1°F) is anticipated throughout the nights during September.

Humidity

September is the least humid month, with an average relative humidity of 81%.

Rainfall

In São Mateus do Sul, in September, it is raining for 13.5 days, with typically 73mm (2.87") of accumulated precipitation. Throughout the year, in São Mateus do Sul, there are 179.8 rainfall days, and 939mm (36.97") of precipitation is accumulated.

Snowfall

January through June, August through December are months without snowfall in São Mateus do Sul.

Daylight

The average length of the day in September is 11h and 57min.
On the first day of the month, sunrise is at 06:33 and sunset at 18:09. On the last day of September, sunrise is at 06:01 and sunset at 18:21 -03.

Sunshine

In September, the average sunshine is 7.9h.

UV index

The months with the lowest UV index in São Mateus do Sul are April through July and September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What are the temperatures in São Mateus do Sul in September?
The average high-temperature and low-temperature in São Mateus do Sul, Brazil, during September are 23.3°C (73.9°F) and 11.7°C (53.1°F) respectively.
What is the least humid month in São Mateus do Sul?
September is the least humid month in São Mateus do Sul, with an average relative humidity of 81%.
What is the average humidity in September in São Mateus do Sul?
In São Mateus do Sul, Brazil, the average relative humidity in September is 81%.
How many days does it rain in September in São Mateus do Sul?
In September, in São Mateus do Sul, Brazil, the rain falls for 13.5 days. Throughout September, 73mm (2.87") of precipitation is accumulated.
When it does not snow in São Mateus do Sul?
January through June, August through December are months without snowfall in São Mateus do Sul, Brazil.
What is the average length of the day in September in São Mateus do Sul?
The average day length in September in São Mateus do Sul, Brazil, is 11h and 57min.
When is the sunrise / sunset in September in São Mateus do Sul?
In September, on the first day of the month, sunrise is at 06:33 and sunset at 18:09. On the last day of the month, sunrise is at 06:01 and sunset at 18:21 -03.
How many hours of sunshine does São Mateus do Sul have in September?
The average sunshine duration in September is 7.9h.
What is the month with the lowest UV index in São Mateus do Sul?
April through July and September, with an average maximum UV index of 4, are months with the lowest UV index in São Mateus do Sul.
What is the UV index intensity in September in São Mateus do Sul?
In São Mateus do Sul, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate 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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - São Mateus do Sul, Brazil
Average temperature in September
São Mateus do Sul, Brazil
  • Average high temperature in September: 23.3°C

The warmest months (with the highest average high temperature) are January and December (26.9°C).
The month with the lowest average high temperature is June (18.8°C).

  • Average low temperature in September: 11.7°C

The month with the highest average low temperature is February (16.8°C).
The coldest month (with the lowest average low temperature) is July (9.4°C).

Average pressure in September - São Mateus do Sul, Brazil
Average pressure in September
São Mateus do Sul, Brazil
  • Average pressure in September: 1017.5mbar

The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1012.4mbar).

Average wind speed in September - São Mateus do Sul, Brazil
Average wind speed in September
São Mateus do Sul, Brazil
  • Average wind speed in September: 8km/h

The windiest months (with the highest average wind speed) are October and November (8.1km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).

Average humidity in September - São Mateus do Sul, Brazil
Average humidity in September
São Mateus do Sul, Brazil
  • Average humidity in September: 81%

The months with the highest relative humidity are May and June (88%).
The month with the lowest relative humidity is September (81%).

Average rainfall in September - São Mateus do Sul, Brazil
Average rainfall in September
São Mateus do Sul, Brazil
  • Average rainfall in September: 73mm

The wettest month (with the highest rainfall) is October (109mm).
The driest months (with the least rainfall) are April and November (57mm).

Average rainfall days in September - São Mateus do Sul, Brazil
Average rainfall days in September
São Mateus do Sul, Brazil
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is January (18.6 days).
The month with the least rainy days is August (10.8 days).

Average snowfall in September - São Mateus do Sul, Brazil
Average snowfall in September
São Mateus do Sul, Brazil
  • Average snowfall in September: 0mm

The month with the highest snowfall is July (5mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).

Average snowfall days in September - São Mateus do Sul, Brazil
Average snowfall days in September
São Mateus do Sul, Brazil
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).

Average daylight in September / Average sunshine in September - São Mateus do Sul, Brazil
Average daylight in September /
Average sunshine in September
São Mateus do Sul, Brazil
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 30min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is May (Average sunshine: 6h and 24min).

Average sunshine days in September - São Mateus do Sul, Brazil
Average sunshine days in September
São Mateus do Sul, Brazil
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is August (17.1 days).
The month with the least sunshine days is February (8.6 days).

Average UV index in September - São Mateus do Sul, Brazil
Average UV index in September
São Mateus do Sul, Brazil
  • Average UV index in September: 4

The month with the highest UV index is January (UV index 6).
The months with the lowest UV index are April, May, June, July and September (UV index 4).

Average cloud cover in September - São Mateus do Sul, Brazil
Average cloud cover in September
São Mateus do Sul, Brazil
  • Average cloud cover in September: 48

The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 42).

Average visibility in September - São Mateus do Sul, Brazil
Average visibility in September
São Mateus do Sul, Brazil
  • Average visibility in September: 7km

The months with the highest visibility are July, August, September, October, November and December (7km).
The months with the lowest visibility are January, February, March, April, May and June (6km).

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