September weather forecast and climate
Soure, Brazil

September, the first month of the spring, in Soure, is still a hot month, with temperature in the range of an average high of 30.9°C (87.6°F) and an average low of 25.8°C (78.4°F).

Temperature

In Soure, the average high-temperature in September is almost the same as in August - a still hot 30.9°C (87.6°F). The average low-temperature, in September, is 25.8°C (78.4°F).

Heat index

In September, the average heat index is estimated at a torrid 38.6°C (101.5°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, wind, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in Soure, Brazil, is 74%.

Rainfall

In Soure, during September, the rain falls for 16.5 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, there are 296.2 rainfall days, and 2404mm (94.65") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature is 28.4°C (83.1°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

February through October, with an average of 12.1h of daylight, are months with the shortest days.

Sunshine

In Soure, the average sunshine is 9h.

UV index

February, March, May through December, with an average maximum UV index of 7, are months with the highest UV index in Soure. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in September in Soure?

In Soure, in September, the average high-temperature is 30.9°C (87.6°F), and the average low-temperature is 25.8°C (78.4°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, in September is estimated at 38.6°C (101.5°F).

What is the average humidity in September in Soure?

The average relative humidity in September is 74%.

How much does it rain in Soure in September?

In Soure, Brazil, in September, during 16.5 rainfall days, 39mm (1.54") of precipitation is typically accumulated.

What is the water temperature in September in Soure?

In September, the average sea temperature is 28.4°C (83.1°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the month with the shortest days in Soure?

Months with the shortest days in Soure, Brazil, are February through October, with an average of 12.1h of daylight.

How many hours of daylight does Soure have in September?

In Soure, Brazil, the average length of the day in September is 12.1h.

How many hours of sunshine does Soure have in September?

In September, the average sunshine in Soure is 9h.

What is the month with the highest UV index in Soure?

Months with the highest UV index in Soure are February, March, May through December, with an average maximum UV index of 7.

What is the UV index intensity in September in Soure?

The average daily maximum UV index in September in Soure, Brazil, is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.
Average temperature in September - Soure, Brazil
  • Average high temperature in September: 30.9°C

The warmest month (with the highest average high temperature) is October (31.4°C).
The month with the lowest average high temperature is April (28.7°C).

  • Average low temperature in September: 25.8°C

The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is April (24.8°C).

Average pressure in September - Soure, Brazil
  • Average pressure in September: 1011.7mbar

The month with the highest atmospheric pressure is July (1012.7mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).

Average wind speed in September - Soure, Brazil
  • Average wind speed in September: 16.6km/h

The windiest month (with the highest average wind speed) is November (17km/h).
The calmest month (with the lowest average wind speed) is May (11km/h).

Average humidity in September - Soure, Brazil
  • Average humidity in September: 74%

The month with the highest relative humidity is April (85%).
Months with the lowest relative humidity are October and November (72%).

Average rainfall in September - Soure, Brazil
  • Average rainfall in September: 39mm

The wettest month (with the highest rainfall) is April (375mm).
The driest month (with the least rainfall) is October (29mm).

Average rainfall days in September - Soure, Brazil
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is March (30.6 days).
The month with the least rainy days is October (12.7 days).

Average sea temperature in September - Soure, Brazil
  • Average sea temperature in September: 28.4°C

The best months for swimming (with the highest average sea temperature) are May, July, August and November (28.8°C).
The coldest month (with the lowest average sea temperature) is October (28.3°C).

Average daylight in September / Average sunshine in September - Soure, Brazil
  • Average daylight in September: 12.1h

Months with the longest days are January, November and December (Average daylight: 12.2h).
Months with the shortest days are February, March, April, May, June, July, August, September and October (Average daylight: 12.1h).

  • Average sunshine in September: 9h

The month with the most sunshine is October (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 6.8h).

Average sunshine days in September - Soure, Brazil
  • Average sunshine days in September: 9.6 days

The month with the most sunshine days is October (15.3 days).
The month with the least sunshine days is February (0 days).

Average UV index in September - Soure, Brazil
  • Average UV index in September: 7

Months with the highest UV index are February, March, May, June, July, August, September, October, November and December (UV index 7).
Months with the lowest UV index are January and April (UV index 6).

Average cloud cover in September - Soure, Brazil
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September - Soure, Brazil
  • Average visibility in September: 10km

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