May weather forecastIguaba, Brazil

May

Weather in May

The last month of the autumn, May, is another warm month in Iguaba, Brazil, with an average temperature fluctuating between 29.8°C (85.6°F) and 20.1°C (68.2°F).

Temperature

During May, Iguaba observes a subtle ascent to a moderately hot 29.8°C (85.6°F) from April's 31.4°C (88.5°F) in the average high-temperature. Iguaba experiences a nighttime temperature average of 20.1°C (68.2°F) during May.

Heat index

May's heat index is computed to be a sweltering 37°C (98.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance 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.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Iguaba, the average relative humidity in May is 78%.

Rainfall

In Iguaba, in May, during 13.8 rainfall days, 27mm (1.06") of precipitation is typically accumulated. In Iguaba, during the entire year, the rain falls for 145.6 days and collects up to 294mm (11.57") of precipitation.

Daylight

The average length of the day in May is 11h and 38min.
On the first day of May in Iguaba, sunrise is at 05:36 and sunset at 17:20. On the last day of the month, sunrise is at 05:42 and sunset at 17:16 -03.

Sunshine

In Iguaba, the average sunshine in May is 5.6h.

UV index

In May, the average daily maximum UV index in Iguaba is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 6 suggests these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. 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. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

The average high-temperature, in May, in Iguaba, is 29.8°C (85.6°F), while the average low-temperature is 20.1°C (68.2°F). In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 37°C (98.6°F).

In Iguaba, Brazil, the average relative humidity in May is 78%.

In Iguaba, Brazil, in May, during 13.8 rainfall days, 27mm (1.06") of precipitation is typically accumulated.

In May, the average day length in Iguaba is 11h and 38min.

In May, on the first day of the month, sunrise is at 05:36 and sunset at 17:20. On the last day of the month, sunrise is at 05:42 and sunset at 17:16 -03.

The average sunshine duration in May in Iguaba is 5.6h.

In May, the average daily maximum UV index in Iguaba, Brazil, is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Iguaba, Brazil

  • Average high temperature in May: 29.8°C

The warmest month (with the highest average high temperature) is November (33.4°C).
The month with the lowest average high temperature is July (27.3°C).

  • Average low temperature in May: 20.1°C

The months with the highest average low temperature are February and March (21.8°C).
The coldest month (with the lowest average low temperature) is August (17.5°C).

Average pressure in May
Iguaba, Brazil

  • Average pressure in May: 1014.3mbar

The month with the highest atmospheric pressure is July (1017.4mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).

Average wind speed in May
Iguaba, Brazil

  • Average wind speed in May: 14km/h

The windiest month (with the highest average wind speed) is October (17.4km/h).
The calmest month (with the lowest average wind speed) is April (13.3km/h).

Average humidity in May
Iguaba, Brazil

  • Average humidity in May: 78%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is November (63%).

Average rainfall in May
Iguaba, Brazil

  • Average rainfall in May: 27mm

The wettest month (with the highest rainfall) is March (43mm).
The driest month (with the least rainfall) is September (10mm).

Average rainfall days in May
Iguaba, Brazil

  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (8.9 days).

Average daylight in May /
Average sunshine in May
Iguaba, Brazil

  • Average daylight in May: 11h and 36min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).

  • Average sunshine in May: 5h and 36min

The month with the most sunshine is January (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 4h and 48min).

Average sunshine days in May
Iguaba, Brazil

  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in May
Iguaba, Brazil

  • Average UV index in May: 6

The months with the highest UV index are January, February, March, October, November and December (UV index 7).
The months with the lowest UV index are June and July (UV index 5).

Average cloud cover in May
Iguaba, Brazil

  • Average cloud cover in May: 57

The month with the most cloud cover is July (Cloud cover 62).
The months with the least cloud cover are November and December (Cloud cover 36).

Average visibility in May
Iguaba, Brazil

  • Average visibility in May: 8km

The months with the highest visibility are February, March, October, November and December (10km).
The months with the lowest visibility are April, May, June, July and August (8km).