May weather forecastRio Largo, Brazil

Weather in May

May, the last month of the autumn in Rio Largo, is another warm month, with an average temperature varying between 22.4°C (72.3°F) and 28.9°C (84°F).

Temperature

The shift to May signals an average high-temperature of a moderately hot 28.9°C (84°F), subtly varied from April's 30.3°C (86.5°F). During May, Rio Largo witnesses a consistent average low-temperature of 22.4°C (72.3°F).

Heat index

The heat index value for May is appraised at a fiery hot 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In May, the average relative humidity is 83%.

Rainfall

In May, the rain falls for 24.1 days. Throughout May, 102mm (4.02") of precipitation is accumulated. Throughout the year, there are 256.6 rainfall days, and 686mm (27.01") of precipitation is accumulated.

Daylight

In May, the average length of the day in Rio Largo is 11h and 41min.
On the first day of May, sunrise is at 05:27 and sunset at 17:13. On the last day of the month, sunrise is at 05:32 and sunset at 17:09 -03.

Sunshine

The average sunshine in May is 7.2h.

UV index

The months with the lowest UV index are April through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 6 in May translates into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the 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.