September weather forecastJacupemba, Brazil

September

Weather in September

The first month of the spring, September, is still a warm month in Jacupemba, Brazil, with an average temperature fluctuating between 19.4°C (66.9°F) and 27.6°C (81.7°F).

Temperature

The transition into September reveals an average high-temperature of a still moderately hot 27.6°C (81.7°F), mirroring a close resemblance to August. Throughout the September nights, Jacupemba encounters a low-temperature of 19.4°C (66.9°F).

Heat index

September's average heat index is evaluated at a tropical 31°C (87.8°F). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

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

Rainfall

In Jacupemba, in September, it is raining for 13.3 days, with typically 22mm (0.87") of accumulated precipitation. In Jacupemba, during the entire year, the rain falls for 197 days and collects up to 741mm (29.17") of precipitation.

Daylight

In September, the average length of the day is 11h and 59min.
On the first day of the month, sunrise is at 05:48 and sunset at 17:32. On the last day of September, sunrise is at 05:22 and sunset at 17:38 -03.

Sunshine

In Jacupemba, the average sunshine in September is 7.4h.

UV index

The month with the lowest UV index is September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 5 during September leads to these advisories:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

September temperatures vary between a high-temperature of 27.6°C (81.7°F) and a low-temperature of 19.4°C (66.9°F). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 31°C (87.8°F).

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

The average relative humidity in September is 76%.

In Jacupemba, during September, the rain falls for 13.3 days and regularly aggregates up to 22mm (0.87") of precipitation.

In September, the average day length is 11h and 59min.

On the first day of September, sunrise is at 05:48 and sunset at 17:32. On the last day of the month, sunrise is at 05:22 and sunset at 17:38 -03.

In Jacupemba, the average sunshine duration in September is 7.4h.

September is the month with the lowest UV index in Jacupemba, with an average maximum UV index of 5.

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Jacupemba, Brazil

  • Average high temperature in September: 27.6°C

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

  • Average low temperature in September: 19.4°C

The month with the highest average low temperature is February (22.1°C).
The coldest month (with the lowest average low temperature) is July (17.9°C).

Average pressure in September
Jacupemba, Brazil

  • Average pressure in September: 1018.6mbar

The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is December (1012.7mbar).

Average wind speed in September
Jacupemba, Brazil

  • Average wind speed in September: 10.7km/h

The windiest month (with the highest average wind speed) is October (10.8km/h).
The calmest month (with the lowest average wind speed) is February (8.2km/h).

Average humidity in September
Jacupemba, Brazil

  • Average humidity in September: 76%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is September (76%).

Average rainfall in September
Jacupemba, Brazil

  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is November (144mm).
The driest month (with the least rainfall) is July (17mm).

Average rainfall days in September
Jacupemba, Brazil

  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is December (22.5 days).
The month with the least rainy days is June (10.8 days).

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

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 11h and 0min).

  • Average sunshine in September: 7h and 24min

The month with the most sunshine is February (Average sunshine: 8h and 30min).
The month with the least sunshine is October (Average sunshine: 6h and 18min).

Average sunshine days in September
Jacupemba, Brazil

  • Average sunshine days in September: 12.7 days

The month with the most sunshine days is June (17.1 days).
The month with the least sunshine days is November (6 days).

Average UV index in September
Jacupemba, Brazil

  • Average UV index in September: 5

The months with the highest UV index are January and February (UV index 7).
The month with the lowest UV index is September (UV index 5).

Average cloud cover in September
Jacupemba, Brazil

  • Average cloud cover in September: 44

The month with the most cloud cover is November (Cloud cover 58).
The month with the least cloud cover is February (Cloud cover 39).

Average visibility in September
Jacupemba, Brazil

  • Average visibility in September: 9km

The months with the highest visibility are August, September, October and November (9km).
The months with the lowest visibility are January, February, March, April, May, June, July and December (8km).