September weather forecastAlcantil, Brazil

September

Weather in September

The first month of the spring, September, is also a moderately hot month in Alcantil, Brazil, with temperature in the range of an average low of 18.2°C (64.8°F) and an average high of 27.9°C (82.2°F).

Temperature

The advent of September presents an average high-temperature of a still moderately hot 27.9°C (82.2°F), maintaining a close correlation with the preceding month. During September, Alcantil observes a consistent average nighttime temperature of 18.2°C (64.8°F).

Heat index

Throughout September, the heat index is appraised at a tropical 31°C (87.8°F). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
It is important to note that the heat index values are for shaded areas and light wind scenarios. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In September, the average relative humidity is 76%.

Rainfall

September is the month with the least rainfall. Rain falls for 9.5 days and accumulates 6mm (0.24") of precipitation.

Daylight

In Alcantil, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:24 and sunset at 17:23. On the last day of September, in Alcantil, sunrise is at 05:08 and sunset at 17:19 -03.

Sunshine

The average sunshine in September in Alcantil is 7h.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.

Updated: Jul 20, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Alcantil, records 27.9°C (82.2°F), while the low-temperature is 18.2°C (64.8°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 31°C (87.8°F).

The average relative humidity in September is 76%.

September is the month with the least rainfall in Alcantil. Rain falls for 9.5 days and accumulates 6mm (0.24") of precipitation.

In September, the rain falls for 9.5 days. Throughout September, 6mm (0.24") of precipitation is accumulated.

The average day length in September is 12h and 4min.

On the first day of September in Alcantil, sunrise is at 05:24 and sunset at 17:23. On the last day of the month, sunrise is at 05:08 and sunset at 17:19 -03.

In September, the average sunshine duration is 7h.

The months with the highest UV index are January through December, with an average maximum UV index of 6.

The months with the lowest UV index are January through December, with an average maximum UV index of 6.

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

27.1°C

27.9°C

29.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

16.5km/h

16.9km/h

17.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

13.3

11.2

10.4

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Alcantil, Brazil

Average high temperature in September: 27.9°C

The warmest month (with the highest average high temperature) is March (30.8°C).
The month with the lowest average high temperature is July (26.2°C).

Average low temperature in September: 18.2°C

The months with the highest average low temperature are February and December (20.9°C).
The coldest month (with the lowest average low temperature) is August (17.5°C).

Average pressure in September
Alcantil, Brazil

Average pressure in September: 1015.8mbar

The months with the highest atmospheric pressure are July and August (1016.6mbar).
The months with the lowest atmospheric pressure are February, March and November (1012.1mbar).

Average wind speed in September
Alcantil, Brazil

Average wind speed in September: 16.3km/h

The windiest month (with the highest average wind speed) is October (16.6km/h).
The calmest month (with the lowest average wind speed) is April (10.8km/h).

Average humidity in September
Alcantil, Brazil

Average humidity in September: 76%

The month with the highest relative humidity is May (84%).
The months with the lowest relative humidity are November and December (69%).

Average rainfall in September
Alcantil, Brazil

Average rainfall in September: 6mm

The wettest month (with the highest rainfall) is March (86mm).
The driest month (with the least rainfall) is September (6mm).

Average rainfall days in September
Alcantil, Brazil

Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is April (19.9 days).
The months with the least rainy days are September and November (9.5 days).

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

Average daylight in September: 12h and 6min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).

Average sunshine in September: 7h and 0min

The month with the most sunshine is November (Average sunshine: 7h and 48min).
The month with the least sunshine is July (Average sunshine: 5h and 54min).

Average sunshine days in September
Alcantil, Brazil

Average sunshine days in September: 11.2 days

The month with the most sunshine days is June (13.7 days).
The month with the least sunshine days is April (7.1 days).

Average UV index in September
Alcantil, Brazil

Average UV index in September: 6

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