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

March 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
March, the first month of the autumn, in Manaus, is still a tropical month, with average temperature ranging between max 30.6°C (87.1°F) and min 23.2°C (73.8°F).

Temperature

In March, the average high-temperature is almost the same as in February - a still tropical 30.6°C (87.1°F). In March, the average low-temperature is 23.2°C (73.8°F).

Heat index

In March, the average heat index is evaluated at an extremely hot 42.3°C (108.1°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like pregnancy, differences in body mass, height, and shape, wind, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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.
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. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

With an average relative humidity of 88%, March is the most humid month.

Rainfall

The month with the most rainfall is March when the rain falls for 20 days and typically aggregates up to 335.4mm (13.2") of precipitation.

Daylight

The average length of the day in March is 12.1h.

Sunshine

The average sunshine in Manaus is 3.2h.

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 reading of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 12 transform into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for 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.

What is the temperature in March in Manaus?

In Manaus, in March, the average high-temperature is 30.6°C (87.1°F), and the average low-temperature is 23.2°C (73.8°F). In March, the average heat index (a.k.a. 'feels like', 'apparent temperature'), that represents influence of the relative humidity to air temperaure, is estimated at 42.3°C (108.1°F).

What is the most humid month in Manaus?

March is the most humid month, with an average relative humidity of 88%.

What is the average humidity in March in Manaus?

In March, the average relative humidity in Manaus, Brazil, is 88%.

How many days does it rain in March in Manaus?

In Manaus, Brazil, during March, the rain falls for 20 days and regularly aggregates up to 335.4mm (13.2") of precipitation.

What is the wettest month in Manaus?

March is the month with the most rainfall. Rain falls for 20 days and accumulates 335.4mm (13.2") of precipitation.

What is the average length of the day in March in Manaus?

In March, the average length of the day is 12.1h.

How many hours of sunshine does Manaus have in March?

The average sunshine in March in Manaus, Brazil, is 3.2h.

When is 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.

What is the UV index reading in March in Manaus?

In March, the average daily maximum UV index is 12. A UV Index of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV radiation.
Average temperature in March - Manaus, Brazil
  • Average high temperature in March: 30.6°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 March: 23.2°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 March - Manaus, Brazil
  • Average humidity in March: 88%

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

Average rainfall in March - Manaus, Brazil
  • Average rainfall in March: 335.4mm

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 March - Manaus, Brazil
  • Average rainfall days in March: 20 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 March / Average sunshine in March - Manaus, Brazil
  • Average daylight in March: 12.1h

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 March: 3.2h

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 March - Manaus, Brazil
  • Average UV index in March: 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).