October weather forecast
Manaus, Brazil

Cloudy skies above the Amazon Theatre building in Manaus, Brazil
Cloudy skies above the Amazon Theatre building in Manaus, Brazil

Weather in October

October, like September, is another tropical spring month in Manaus, Brazil, with temperature in the range of an average high of 32.8°C (91°F) and an average low of 23.7°C (74.7°F).

Temperature

In Manaus, the average high-temperature in October is essentially the same as in September - a still tropical 32.8°C (91°F). In October, the average low-temperature is 23.7°C (74.7°F).

Heat index

In October, the average heat index is appraised at a burning hot 47°C (116.6°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. 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 October, the average relative humidity is 79%.

Rainfall

In Manaus, during October, the rain falls for 9 days and regularly aggregates up to 113mm (4.45") of precipitation. Throughout the year, there are 160 rainfall days, and 2307mm (90.83") of precipitation is accumulated.

Daylight

The average length of the day in October is 12h and 11min.
On the first day of the month, sunrise is at 05:45 and sunset at 17:53. On the last day of October, in Manaus, sunrise is at 05:37 and sunset at 17:50 -04.

Sunshine

In October, the average sunshine in Manaus, Brazil, is 5.5h.

UV index

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index in Manaus. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 12 in October transform into the following instructions:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.
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FAQ

What is the temperature in October in Manaus?

The average high-temperature, in October, is 32.8°C (91°F), while the average low-temperature is 23.7°C (74.7°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in October is appraised at 47°C (116.6°F).

What is the average humidity in October in Manaus?

In Manaus, the average relative humidity in October is 79%.

How many days does it rain in October in Manaus?

In Manaus, Brazil, in October, during 9 rainfall days, 113mm (4.45") of precipitation is typically accumulated.

How many hours of daylight does Manaus have in October?

In Manaus, the average day length in October is 12h and 11min.

When is the sunrise / sunset in October in Manaus?

In October, on the first day of the month, sunrise is at 05:45 and sunset at 17:53. On the last day of the month, sunrise is at 05:37 and sunset at 17:50 -04.

How long on average sun shines in October in Manaus?

The average sunshine duration in October is 5.5h.

What is the month with the highest UV index in Manaus?

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index in Manaus, Brazil.

How high is the UV index in October in Manaus?

The average daily maximum UV index in October in Manaus is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in October
Manaus, Brazil

Average temperature in October - Manaus, Brazil
  • Average high temperature in October: 32.8°C

The warmest month (with the highest average high temperature) is September (32.9°C).
The month with the lowest average high temperature is February (30.4°C).

  • Average low temperature in October: 23.7°C

The months with the highest average low temperature are October and November (23.7°C).
The coldest month (with the lowest average low temperature) is July (22.7°C).

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Average humidity in October
Manaus, Brazil

Average humidity in October - Manaus, Brazil
  • Average humidity in October: 79%

The month with the highest relative humidity is March (88%).
The months with the lowest relative humidity are August and September (77%).

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Average rainfall in October
Manaus, Brazil

Average rainfall in October - Manaus, Brazil
  • Average rainfall in October: 112.6mm

The wettest month (with the highest rainfall) is March (335.4mm).
The driest month (with the least rainfall) is August (47.3mm).

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Average rainfall days in October
Manaus, Brazil

Average rainfall days in October - Manaus, Brazil
  • Average rainfall days in October: 9 days

The month with the highest number of rainy days is March (20 days).
The months with the least rainy days are August and September (6 days).

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Average daylight in October /
Average sunshine in October
Manaus, Brazil

Average daylight in October / Average sunshine in October - Manaus, Brazil
  • Average daylight in October: 12h and 11min

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 57min).

  • Average sunshine in October: 5h and 30min

The month with the most sunshine is August (Average sunshine: 7h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).

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Average UV index in October
Manaus, Brazil

Average UV index in October - Manaus, Brazil
  • Average UV index in October: 12

The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 12).
The month with the lowest UV index is July (UV index 10).

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