September weather forecastJaú, Brazil

September

Weather in September

September, the first month of the spring in Jaú, is still a warm month, with an average temperature varying between 16.6°C (61.9°F) and 29.6°C (85.3°F).

Temperature

September's weather displays an average high-temperature of a still moderately hot 29.6°C (85.3°F), slightly varied from August's 26.9°C (80.4°F). During September, Jaú reports a marked contrast from daily peak temperatures, with an average nighttime reading of 16.6°C (61.9°F).

Heat index

The heat index in September is appraised at a hot 32°C (89.6°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

With an average relative humidity of 62%, September is the least humid month in Jaú.

Rainfall

In Jaú, during September, the rain falls for 9.4 days and regularly aggregates up to 44mm (1.73") of precipitation. In Jaú, during the entire year, the rain falls for 192.9 days and collects up to 1119mm (44.06") of precipitation.

Daylight

The average length of the day in September is 11h and 59min.
On the first day of September, sunrise is at 06:23 and sunset at 18:04. On the last day of the month, sunrise is at 05:55 and sunset at 18:12 -03.

Sunshine

The months with the most sunshine in Jaú are August and September, with an average of 9.2h of sunshine.

UV index

The months with the highest UV index in Jaú are January, March, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 during September translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

The high-temperature, in September, in Jaú, is 29.6°C (85.3°F), while the low-temperature averages to 16.6°C (61.9°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is appraised at 32°C (89.6°F).

The least humid month is September, with an average relative humidity of 62%.

The average relative humidity in September in Jaú, Brazil, is 62%.

In Jaú, during September, the rain falls for 9.4 days and regularly aggregates up to 44mm (1.73") of precipitation.

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

On the first day of September in Jaú, sunrise is at 06:23 and sunset at 18:04. On the last day of the month, sunrise is at 05:55 and sunset at 18:12 -03.

August and September, with an average of 9.2h of sunshine, are months with the most sunshine in Jaú, Brazil.

In September, the average sunshine duration is 9.2h.

January, March, August through December, with an average maximum UV index of 6, are months with the highest UV index in Jaú, Brazil.

The average daily maximum UV index in September in Jaú is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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
Jaú, Brazil

  • Average high temperature in September: 29.6°C

The warmest month (with the highest average high temperature) is October (29.8°C).
The month with the lowest average high temperature is June (23.3°C).

  • Average low temperature in September: 16.6°C

The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is June (13.7°C).

Average pressure in September
Jaú, Brazil

  • Average pressure in September: 1015.6mbar

The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).

Average wind speed in September
Jaú, Brazil

  • Average wind speed in September: 10.3km/h

The windiest month (with the highest average wind speed) is October (10.5km/h).
The calmest month (with the lowest average wind speed) is February (7.3km/h).

Average humidity in September
Jaú, Brazil

  • Average humidity in September: 62%

The month with the highest relative humidity is March (86%).
The month with the lowest relative humidity is September (62%).

Average rainfall in September
Jaú, Brazil

  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is January (222mm).
The driest months (with the least rainfall) are July and August (19mm).

Average rainfall days in September
Jaú, Brazil

  • Average rainfall days in September: 9.4 days

The month with the highest number of rainy days is January (27.3 days).
The month with the least rainy days is August (4.7 days).

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

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).

  • Average sunshine in September: 9h and 12min

The months with the most sunshine are August and September (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).

Average sunshine days in September
Jaú, Brazil

  • Average sunshine days in September: 19.3 days

The month with the most sunshine days is August (25.2 days).
The month with the least sunshine days is January (2.2 days).

Average UV index in September
Jaú, Brazil

  • Average UV index in September: 6

The months with the highest UV index are January, March, August, September, October, November and December (UV index 6).
The months with the lowest UV index are February, April, May, June and July (UV index 5).

Average cloud cover in September
Jaú, Brazil

  • Average cloud cover in September: 21

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in September
Jaú, Brazil

  • Average visibility in September: 9km

The month with the highest visibility is August (10km).
The month with the lowest visibility is March (7km).