November, the last month of the spring in
Manaus, is another hot month, with temperature in the range of an average low of 23.7°C (74.7°F) and an average high of 32.1°C (89.8°F).
Temperature
In November, the average high-temperature is practically the same as in
October - a still hot 32.1°C (89.8°F). In Manaus, the average low-temperature is 23.7°C (74.7°F).
Heat index
In November, the average heat index is appraised at a life-threatening hot 45°C (113°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like clothing, wind, metabolic differences, and activity influence one's weather impression. 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 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. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. 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
In Manaus, the average relative humidity in November is 81%.
Rainfall
In Manaus, during November, the rain falls for 12 days and regularly aggregates up to 174mm (6.85") of precipitation. In Manaus, during the entire year, the rain falls for 160 days and collects up to 2307mm (90.83") of precipitation.
Daylight
In November, the average length of the day in Manaus is 12h and 16min.
On the first day of the month, sunrise is at 05:36 and sunset at 17:50. On the last day of November, in Manaus,
Brazil, sunrise is at 05:40 and sunset at 17:57 -04.
Sunshine
In November, the average sunshine is 4.7h.
UV index
The months with the highest UV index are
January through
May,
August through
December, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In November, the average maximum UV index of 12 translate into the following recommendations:
Take all required precautions, as unprotected skin and eyes can burn in 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 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.