September weather forecast
Santo Antônio do Içá, Brazil

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Weather in September

September, the first month of the spring in Santo Antônio do Içá, is still a tropical month, with an average temperature varying between 22.3°C (72.1°F) and 33.5°C (92.3°F).

Temperature

During the warmest month, September, temperatures average a high of 33.5°C (92.3°F) and a low of 22.3°C (72.1°F).

Heat index

September's average heat index is appraised at a burning hot 48°C (118.4°F). Beware: Heat exhaustion along with heat cramps are on the cards. Heatstroke could result from sustained physical activity.
Consider that heat index readings are for situations in the shade and light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

September is the least humid month in Santo Antônio do Içá, with an average relative humidity of 76%.

Rainfall

In Santo Antônio do Içá, during September, the rain falls for 20.2 days and regularly aggregates up to 66mm (2.6") of precipitation. Throughout the year, in Santo Antônio do Içá, there are 313.7 rainfall days, and 1838mm (72.36") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 5min.
On the first day of September, sunrise is at 06:29 and sunset at 18:33. On the last day of the month, sunrise is at 06:17 and sunset at 18:25 -04.

Sunshine

In September, the average sunshine in Santo Antônio do Içá is 8.3h.

UV index

July through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun 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

What is the hottest time of year in Santo Antônio do Içá?

In Santo Antônio do Içá, September records the average highest temperatures, peaking at 33.5°C (92.3°F) and reaching a low of 22.3°C (72.1°F).

How hot does it get in Santo Antônio do Içá in September?

The high-temperature, in September, in Santo Antônio do Içá, is 33.5°C (92.3°F), while the low-temperature averages to 22.3°C (72.1°F). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is appraised at 48°C (118.4°F).

What is the least humid month in Santo Antônio do Içá?

The least humid month is September, with an average relative humidity of 76%.

What is the average humidity in September in Santo Antônio do Içá?

In September, the average relative humidity in Santo Antônio do Içá, Brazil, is 76%.

How many days does it rain in September in Santo Antônio do Içá?

In September, in Santo Antônio do Içá, the rain falls for 20.2 days. Throughout September, 66mm (2.6") of precipitation is accumulated.

How many hours of daylight does Santo Antônio do Içá have in September?

The average day length in September in Santo Antônio do Içá, Brazil, is 12h and 5min.

What time are sunrise and sunset in September in Santo Antônio do Içá?

On the first day of September, sunrise is at 06:29 and sunset at 18:33. On the last day of the month, sunrise is at 06:17 and sunset at 18:25 -04.

How long on average sun shines in September in Santo Antônio do Içá?

In Santo Antônio do Içá, Brazil, the average sunshine duration in September is 8.3h.

When is the highest UV index in Santo Antônio do Içá?

The months with the highest UV index in Santo Antônio do Içá, Brazil, are July through October, with an average maximum UV index of 7.

What is the UV index reading in September in Santo Antônio do Içá?

In Santo Antônio do Içá, Brazil, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Santo Antônio do Içá, Brazil

Average temperature in September - Santo Antônio do Içá, Brazil
  • Average high temperature in September: 33.5°C

The warmest month (with the highest average high temperature) is September (33.5°C).
The months with the lowest average high temperature are January and May (29.8°C).

  • Average low temperature in September: 22.3°C

The month with the highest average low temperature is October (22.7°C).
The coldest month (with the lowest average low temperature) is July (20.7°C).

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Average pressure in September
Santo Antônio do Içá, Brazil

Average pressure in September - Santo Antônio do Içá, Brazil
  • Average pressure in September: 1010.7mbar

The month with the highest atmospheric pressure is July (1012.6mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).

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Average wind speed in September
Santo Antônio do Içá, Brazil

Average wind speed in September - Santo Antônio do Içá, Brazil
  • Average wind speed in September: 3.6km/h

The windiest months (with the highest average wind speed) are August, September, October and November (3.6km/h).
The calmest month (with the lowest average wind speed) is May (3.2km/h).

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Average humidity in September
Santo Antônio do Içá, Brazil

Average humidity in September - Santo Antônio do Içá, Brazil
  • Average humidity in September: 76%

The months with the highest relative humidity are January, February, March, April and May (90%).
The month with the lowest relative humidity is September (76%).

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Average rainfall in September
Santo Antônio do Içá, Brazil

Average rainfall in September - Santo Antônio do Içá, Brazil
  • Average rainfall in September: 66mm

The wettest month (with the highest rainfall) is December (260mm).
The driest month (with the least rainfall) is August (59mm).

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Average rainfall days in September
Santo Antônio do Içá, Brazil

Average rainfall days in September - Santo Antônio do Içá, Brazil
  • Average rainfall days in September: 20.2 days

The month with the highest number of rainy days is January (29.9 days).
The month with the least rainy days is August (19.8 days).

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Average daylight in September /
Average sunshine in September
Santo Antônio do Içá, Brazil

Average daylight in September / Average sunshine in September - Santo Antônio do Içá, Brazil
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 8h and 24min).
The months with the least sunshine are March and April (Average sunshine: 5h and 36min).

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Average sunshine days in September
Santo Antônio do Içá, Brazil

Average sunshine days in September - Santo Antônio do Içá, Brazil
  • Average sunshine days in September: 7.7 days

The month with the most sunshine days is August (9.8 days).
The month with the least sunshine days is January (0.8 days).

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Average UV index in September
Santo Antônio do Içá, Brazil

Average UV index in September - Santo Antônio do Içá, Brazil
  • Average UV index in September: 7

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

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Average cloud cover in September
Santo Antônio do Içá, Brazil

Average cloud cover in September - Santo Antônio do Içá, Brazil
  • Average cloud cover in September: 42

The month with the most cloud cover is April (Cloud cover 70).
The months with the least cloud cover are August and September (Cloud cover 42).

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Average visibility in September
Santo Antônio do Içá, Brazil

Average visibility in September - Santo Antônio do Içá, Brazil
  • Average visibility in September: 8km

The months with the highest visibility are August and September (8km).
The month with the lowest visibility is April (5km).

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Santo Antônio do Içá, Brazil

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