September weather forecastManicoré, Brazil

September

Weather in September

The first month of the spring, September, is still a very hot month in Manicoré, Brazil, with an average temperature varying between 23°C (73.4°F) and 36.2°C (97.2°F).

Temperature

August and September, with an average high-temperature of 36.2°C (97.2°F), are the warmest months.

Heat index

Throughout September, the heat index is calculated to be a burning hot 50°C (122°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity is 62%.

Rainfall

In September, the rain falls for 13.6 days. Throughout September, 27mm (1.06") of precipitation is accumulated. Throughout the year, in Manicoré, there are 238.6 rainfall days, and 1152mm (45.35") of precipitation is accumulated.

Daylight

In Manicoré, Brazil, the average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 06:04 and sunset at 18:05. On the last day of September, sunrise is at 05:50 and sunset at 17:59 -04.

Sunshine

With an average of 10.2h of sunshine, September has the most sunshine of the year.

UV index

The months with the highest UV index in Manicoré are May through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During August and September, Manicoré registers its highest temperatures, averaging a high of 36.2°C (97.2°F).

Manicoré in September has an average high-temperature of 36.2°C (97.2°F) and an average low-temperature of 23°C (73.4°F). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 50°C (122°F).

The average relative humidity in September is 62%.

In September, in Manicoré, Brazil, the rain falls for 13.6 days. Throughout September, 27mm (1.06") of precipitation is accumulated.

In Manicoré, Brazil, the average day length in September is 12h and 5min.

On the first day of September, sunrise is at 06:04 and sunset at 18:05. On the last day of the month, sunrise is at 05:50 and sunset at 17:59 -04.

With an average of 10.2h of sunshine, September has the most sunshine of the year in Manicoré, Brazil.

In Manicoré, Brazil, the average sunshine duration in September is 10.2h.

The months with the highest UV index are May through November, with an average maximum UV index of 7.

In Manicoré, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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

36.2°C

35.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.7km/h

4.3km/h

4.5km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

22.2

10.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Manicoré, Brazil

Average high temperature in September: 36.2°C

The warmest months (with the highest average high temperature) are August and September (36.2°C).
The month with the lowest average high temperature is February (29.6°C).

Average low temperature in September: 23°C

The month with the highest average low temperature is October (23.6°C).
The coldest month (with the lowest average low temperature) is July (21.1°C).

Average pressure in September
Manicoré, Brazil

Average pressure in September: 1009.8mbar

The months with the highest atmospheric pressure are June and July (1011.9mbar).
The month with the lowest atmospheric pressure is November (1007.8mbar).

Average wind speed in September
Manicoré, Brazil

Average wind speed in September: 4.1km/h

The windiest month (with the highest average wind speed) is August (4.2km/h).
The calmest month (with the lowest average wind speed) is April (3.4km/h).

Average humidity in September
Manicoré, Brazil

Average humidity in September: 62%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is August (57%).

Average rainfall in September
Manicoré, Brazil

Average rainfall in September: 27mm

The wettest month (with the highest rainfall) is January (178mm).
The driest month (with the least rainfall) is August (10mm).

Average rainfall days in September
Manicoré, Brazil

Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is January (28.7 days).
The month with the least rainy days is August (7 days).

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

Average daylight in September: 12h and 6min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).

Average sunshine in September: 10h and 12min

The month with the most sunshine is September (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in September
Manicoré, Brazil

Average sunshine days in September: 14 days

The month with the most sunshine days is July (22.8 days).
The month with the least sunshine days is January (1.8 days).

Average UV index in September
Manicoré, Brazil

Average UV index in September: 7

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