Manaus
Brazil
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Manaus, Brazil

Cloudy skies above the Amazon Theatre building in Manaus, Brazil
Cloudy skies above the Amazon Theatre building in Manaus, Brazil
April, the same as March, in Manaus, Brazil, is another tropical autumn month, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 23.3°C (73.9°F).

Temperature

In Manaus, the average high-temperature is practically the same as in March - a still tropical 30.7°C (87.3°F). In April, the average low-temperature is 23.3°C (73.9°F).

Heat index

In April, the average heat index is calculated to a scorching 42.3°C (108.1°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like differences in body mass, height, and shape, wind, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. 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

The average relative humidity in April is 87%.

Rainfall

In Manaus, Brazil, during April, the rain falls for 18 days and regularly aggregates up to 311.2mm (12.3") of precipitation. In Manaus, during the entire year, the rain falls for 160 days and collects up to 2307.3mm (90.8") of precipitation.

Daylight

In Manaus, the average length of the day is 12h.

Sunshine

In Manaus, the average sunshine is 3.7h.

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 value of 11, and more, symbolizes an extreme health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 12 interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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.

What is the temperature in April in Manaus?

The average high-temperature, in April, in Manaus, Brazil, is 30.7°C (87.3°F), while the average low-temperature is 23.3°C (73.9°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, in April is appraised at 42.3°C (108.1°F).

What is the average humidity in April in Manaus?

In Manaus, the average relative humidity in April is 87%.

How much does it rain in Manaus in April?

In April, in Manaus, Brazil, the rain falls for 18 days. Throughout April, 311.2mm (12.3") of precipitation is accumulated.

How many hours of daylight does Manaus have in April?

The average length of the day in April in Manaus, Brazil, is 12h.

How many hours of sunshine does Manaus have in April?

The average sunshine in April in Manaus is 3.7h.

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

Months with the highest UV index are January through May, August through December, with an average maximum UV index of 12.

How high is the UV index in April in Manaus?

In April, the average daily maximum UV index in Manaus, Brazil, is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV rays.
Average temperature in April - Manaus, Brazil
  • Average high temperature in April: 30.7°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 April: 23.3°C

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).

Average humidity in April - Manaus, Brazil
  • Average humidity in April: 87%

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

Average rainfall in April - Manaus, Brazil
  • Average rainfall in April: 311.2mm

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

Average rainfall days in April - Manaus, Brazil
  • Average rainfall days in April: 18 days

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

Average daylight in April / Average sunshine in April - Manaus, Brazil
  • Average daylight in April: 12h

Months with the longest days are January, November and December (Average daylight: 12.3h).
The month with shortest days is June (Average daylight: 11.9h).

  • Average sunshine in April: 3.7h

The month with most sunshine is August (Average sunshine: 7.3h).
The month with least sunshine is February (Average sunshine: 3.1h).

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

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).