May weather forecastAçu, Brazil
May
Weather in May
The last month of the autumn, May, is another hot month in Açu, Brazil, with an average temperature fluctuating between 32.7°C (90.9°F) and 22.8°C (73°F).Temperature
Upon the beginning of May, Açu's high-temperatures register at a still tropical 32.7°C (90.9°F), closely mirroring the preceding month. Açu throughout May, experiences an average nighttime temperature of 22.8°C (73°F).Heat index
The heat index for May is appraised at an extremely hot 43°C (109.4°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In May, the average relative humidity is 72%.Rainfall
In Açu, Brazil, during May, the rain falls for 15.8 days and regularly aggregates up to 50mm (1.97") of precipitation. In Açu, during the entire year, the rain falls for 112.4 days and collects up to 381mm (15") of precipitation.Daylight
In Açu, the average length of the day in May is 11h and 52min.On the first day of the month, sunrise is at 05:27 and sunset at 17:22. On the last day of May, sunrise is at 05:30 and sunset at 17:20 -03.
Sunshine
In May, the average sunshine in Açu is 8.6h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 7 during May translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. 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. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Açu, Brazil
- Average high temperature in May: 32.7°C
The warmest month (with the highest average high temperature) is October (35.7°C).
The month with the lowest average high temperature is July (32°C).
- Average low temperature in May: 22.8°C
The month with the highest average low temperature is January (24.6°C).
The coldest months (with the lowest average low temperature) are July and August (21.7°C).
Average pressure in May
Açu, Brazil
- Average pressure in May: 1012.4mbar
The month with the highest atmospheric pressure is July (1014.6mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in May
Açu, Brazil
- Average wind speed in May: 13km/h
The windiest months (with the highest average wind speed) are September and October (20.5km/h).
The calmest month (with the lowest average wind speed) is April (12.3km/h).
Average humidity in May
Açu, Brazil
- Average humidity in May: 72%
The month with the highest relative humidity is April (73%).
The months with the lowest relative humidity are September and October (55%).
Average rainfall in May
Açu, Brazil
- Average rainfall in May: 50mm
The wettest month (with the highest rainfall) is March (92mm).
The driest months (with the least rainfall) are October and November (1mm).
Average rainfall days in May
Açu, Brazil
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is April (17.2 days).
The month with the least rainy days is November (1.4 days).
Average daylight in May /
Average sunshine in May
Açu, Brazil
- Average daylight in May: 11h and 54min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is September (Average sunshine: 9h and 36min).
The month with the least sunshine is March (Average sunshine: 8h and 18min).
Average sunshine days in May
Açu, Brazil
- Average sunshine days in May: 14 days
The month with the most sunshine days is October (28.5 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in May
Açu, Brazil
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in May
Açu, Brazil
- Average cloud cover in May: 34
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in May
Açu, Brazil
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





