September weather forecastTombos, Brazil

September

Weather in September

September, the first month of the spring in Tombos, is also a moderately hot month, with an average temperature varying between 28.4°C (83.1°F) and 17°C (62.6°F).

Temperature

The initiation of September records an average high-temperature of a still moderately hot 28.4°C (83.1°F), displaying a near consistency with the previous month. Tombos's temperature in September lowers to a consistent average of 17°C (62.6°F) during the nights.

Heat index

During September, the heat index is estimated at a tropical 32°C (89.6°F). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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

The least humid month in Tombos is September, with an average relative humidity of 72%.

Rainfall

In Tombos, Brazil, during September, the rain falls for 11.2 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 205.2 rainfall days, and 1048mm (41.26") of precipitation is accumulated.

Daylight

In Tombos, the average length of the day in September is 11h and 59min.
On the first day of September in Tombos, Brazil, sunrise is at 05:56 and sunset at 17:39. On the last day of the month, sunrise is at 05:29 and sunset at 17:46 -03.

Sunshine

In September, the average sunshine is 8h.

UV index

January, February, August, September and December, with an average maximum UV index of 6, are months with the highest UV index in Tombos. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

In September, the average high-temperature and low-temperature are 28.4°C (83.1°F) and 17°C (62.6°F) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 32°C (89.6°F).

September is the least humid month in Tombos, Brazil, with an average relative humidity of 72%.

In Tombos, Brazil, the average relative humidity in September is 72%.

In Tombos, in September, during 11.2 rainfall days, 38mm (1.5") of precipitation is typically accumulated.

The average day length in September is 11h and 59min.

On the first day of September in Tombos, sunrise is at 05:56 and sunset at 17:39. On the last day of the month, sunrise is at 05:29 and sunset at 17:46 -03.

In September, the average sunshine duration in Tombos is 8h.

The months with the highest UV index in Tombos, Brazil, are January, February, August, September and December, with an average maximum UV index of 6.

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's 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
Tombos, Brazil

  • Average high temperature in September: 28.4°C

The warmest month (with the highest average high temperature) is February (29.9°C).
The month with the lowest average high temperature is June (24.6°C).

  • Average low temperature in September: 17°C

The month with the highest average low temperature is January (20.1°C).
The coldest months (with the lowest average low temperature) are June and July (14.9°C).

Average pressure in September
Tombos, Brazil

  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is July (1021mbar).
The month with the lowest atmospheric pressure is December (1012.6mbar).

Average wind speed in September
Tombos, Brazil

  • Average wind speed in September: 6.6km/h

The windiest months (with the highest average wind speed) are September and October (6.6km/h).
The calmest month (with the lowest average wind speed) is April (4.6km/h).

Average humidity in September
Tombos, Brazil

  • Average humidity in September: 72%

The month with the highest relative humidity is April (88%).
The month with the lowest relative humidity is September (72%).

Average rainfall in September
Tombos, Brazil

  • Average rainfall in September: 38mm

The wettest month (with the highest rainfall) is December (207mm).
The driest month (with the least rainfall) is July (10mm).

Average rainfall days in September
Tombos, Brazil

  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is December (26.4 days).
The month with the least rainy days is July (7.2 days).

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

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).

Average sunshine days in September
Tombos, Brazil

  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is December (3.5 days).

Average UV index in September
Tombos, Brazil

  • Average UV index in September: 6

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

Average cloud cover in September
Tombos, Brazil

  • Average cloud cover in September: 36

The month with the most cloud cover is November (Cloud cover 60).
The months with the least cloud cover are July, August and September (Cloud cover 36).

Average visibility in September
Tombos, Brazil

  • Average visibility in September: 9km

The months with the highest visibility are August and September (9km).
The months with the lowest visibility are April and May (6km).