November weather forecast
Boa Vista, Brazil

Come November, Boa Vista's weather patterns start transitioning back to its hotter trends. With a lower rainfall of 76mm (2.99"), the city experiences a drier spell. The return of hotter weather can be seen with a resurgence of temperatures near the 33.7°C (92.7°F) mark. As we move towards the end of the year, the city sees a shift back to slightly warmer climates.

Temperature

November brings an average high-temperature of a still hot 33.7°C (92.7°F), showing a slight difference from October's 34°C (93.2°F). In November, Boa Vista records an average nighttime temperature of 24.5°C (76.1°F).

Heat index

The heat index value for November is appraised at a life-threatening hot 45°C (113°F). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in November is 68%.

Rainfall

In Boa Vista, in November, it is raining for 19.1 days, with typically 76mm (2.99") of accumulated precipitation. Throughout the year, in Boa Vista, there are 241.8 rainfall days, and 1216mm (47.87") of precipitation is accumulated.

Daylight

In November, the average length of the day in Boa Vista is 11h and 59min.
On the first day of the month, sunrise is at 05:45 and sunset at 17:46. On the last day of November, sunrise is at 05:52 and sunset at 17:50 -04.

Sunshine

The average sunshine in November is 8.9h.

UV index

The months with the highest UV index in Boa Vista are January through May, July through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in November interprets into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.