September weather forecast
Guaiúba, Brazil

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Weather in September

September, the first month of the spring in Guaiúba, is still a tropical month, with an average temperature fluctuating between 22.6°C (72.7°F) and 32.2°C (90°F).

Temperature

The shift into September reveals an average high-temperature of a still hot 32.2°C (90°F), closely mirroring August's climate. Guaiúba experiences a consistent average temperature of 22.6°C (72.7°F) throughout the nights in September.

Heat index

The heat index value during September is evaluated at a blisteringly hot 40°C (104°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
The standards for the heat index are set for locations in shade and under light breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 68%.

Rainfall

September is the month with the least rainfall in Guaiúba. Rain falls for 5.6 days and accumulates 3mm (0.12") of precipitation.

Daylight

In Guaiúba, Brazil, the average length of the day in September is 12h and 5min.
On the first day of September in Guaiúba, sunrise is at 05:33 and sunset at 17:35. On the last day of the month, sunrise is at 05:20 and sunset at 17:28 -03.

Sunshine

In Guaiúba, the average sunshine in September is 8.8h.

UV index

January through March, May through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 in September translates into this advice:
Shun overexposure. Protection from sun ravages is indispensable. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

How hot does it get in Guaiúba in September?

In Guaiúba, in September, the average high-temperature is 32.2°C (90°F), and the average low-temperature is 22.6°C (72.7°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is evaluated at 40°C (104°F).

What is the least humid month in Guaiúba?

The months with the lowest humidity in Guaiúba are September and October, with an average relative humidity of 68%.

What is the average humidity in September in Guaiúba?

In September, the average relative humidity in Guaiúba is 68%.

What is the driest month in Guaiúba?

September is the month with the least rainfall. Rain falls for 5.6 days and accumulates 3mm (0.12") of precipitation.

How much does it rain in Guaiúba in September?

In Guaiúba, during September, the rain falls for 5.6 days and regularly aggregates up to 3mm (0.12") of precipitation.

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

In Guaiúba, the average day length in September is 12h and 5min.

What time are sunrise and sunset in September in Guaiúba?

In September, on the first day of the month, sunrise is at 05:33 and sunset at 17:35. On the last day of the month, in Guaiúba, sunrise is at 05:20 and sunset at 17:28 -03.

How long on average sun shines in September in Guaiúba?

The average sunshine duration in September in Guaiúba, Brazil, is 8.8h.

When is the highest UV index in Guaiúba?

The months with the highest UV index in Guaiúba, Brazil, are January through March, May through December, with an average maximum UV index of 7.

What is the UV index reading in September in Guaiúba?

In September, the average daily maximum UV index in Guaiúba is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in September
Guaiúba, Brazil

Average temperature in September - Guaiúba, Brazil
  • Average high temperature in September: 32.2°C

The warmest month (with the highest average high temperature) is October (32.5°C).
The month with the lowest average high temperature is June (30.3°C).

  • Average low temperature in September: 22.6°C

The month with the highest average low temperature is December (24.6°C).
The coldest month (with the lowest average low temperature) is July (21.8°C).

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Average pressure in September
Guaiúba, Brazil

Average pressure in September - Guaiúba, Brazil
  • Average pressure in September: 1013mbar

The month with the highest atmospheric pressure is July (1013.9mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).

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Average wind speed in September
Guaiúba, Brazil

Average wind speed in September - Guaiúba, Brazil
  • Average wind speed in September: 19.2km/h

The windiest month (with the highest average wind speed) is September (19.2km/h).
The calmest month (with the lowest average wind speed) is April (11.2km/h).

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Average humidity in September
Guaiúba, Brazil

Average humidity in September - Guaiúba, Brazil
  • Average humidity in September: 68%

The month with the highest relative humidity is April (81%).
The months with the lowest relative humidity are September and October (68%).

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Average rainfall in September
Guaiúba, Brazil

Average rainfall in September - Guaiúba, Brazil
  • Average rainfall in September: 3mm

The wettest month (with the highest rainfall) is April (94mm).
The driest month (with the least rainfall) is September (3mm).

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Average rainfall days in September
Guaiúba, Brazil

Average rainfall days in September - Guaiúba, Brazil
  • Average rainfall days in September: 5.6 days

The month with the highest number of rainy days is April (23.8 days).
The month with the least rainy days is September (5.6 days).

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Average daylight in September /
Average sunshine in September
Guaiúba, Brazil

Average daylight in September / Average sunshine in September - Guaiúba, Brazil
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is March (Average sunshine: 6h and 54min).

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Average sunshine days in September
Guaiúba, Brazil

Average sunshine days in September - Guaiúba, Brazil
  • Average sunshine days in September: 20.9 days

The month with the most sunshine days is September (20.9 days).
The month with the least sunshine days is April (3.7 days).

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Average UV index in September
Guaiúba, Brazil

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

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

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Average cloud cover in September
Guaiúba, Brazil

Average cloud cover in September - Guaiúba, Brazil
  • Average cloud cover in September: 26

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Guaiúba, Brazil

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

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

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Guaiúba, Brazil

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