May weather forecast
Caxias, Brazil

The last month of the autumn, May, is another hot month in Caxias, Brazil, with an average temperature varying between 31°C (87.8°F) and 22.2°C (72°F).

Temperature

With the onset of May, the average high-temperature stands at a still hot 31°C (87.8°F), closely aligned with April's 30.6°C (87.1°F). During the month of May, Caxias's nighttime temperature lowers to an average of 22.2°C (72°F).

Heat index

In May, the average heat index is calculated to be an extremely hot 42°C (107.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In Caxias, the average relative humidity in May is 82%.

Rainfall

In Caxias, in May, it is raining for 21.9 days, with typically 90mm (3.54") of accumulated precipitation. In Caxias, during the entire year, the rain falls for 209.7 days and collects up to 1038mm (40.87") of precipitation.

Daylight

In Caxias, the average length of the day in May is 11h and 54min.
On the first day of the month, sunrise is at 05:52 and sunset at 17:48. On the last day of May, in Caxias, sunrise is at 05:55 and sunset at 17:47 -03.

Sunshine

In Caxias, Brazil, the average sunshine in May is 7.5h.

UV index

January, April through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In May, an average UV index of 7 transforms into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.