May weather forecastJanuária, Brazil
May
Weather in May
The last month of the autumn, May, is another warm month in Januária, Brazil, with temperature in the range of an average low of 17.4°C (63.3°F) and an average high of 28.2°C (82.8°F).Temperature
May observes an average high-temperature of a still warm 28.2°C (82.8°F), marking an insignificant difference from April's 28.8°C (83.8°F). During the May nights, an average temperature of 17.4°C (63.3°F) is observed.Heat index
The heat index for May is appraised at a hot 32°C (89.6°F). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.Realize that the values for the heat index are set for shaded places and light winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In May, the average relative humidity is 75%.Rainfall
In Januária, in May, during 7.8 rainfall days, 16mm (0.63") of precipitation is typically accumulated. In Januária, during the entire year, the rain falls for 145.3 days and collects up to 689mm (27.13") of precipitation.Daylight
The average length of the day in May in Januária is 11h and 23min.On the first day of May in Januária, sunrise is at 06:08 and sunset at 17:40. On the last day of the month, sunrise is at 06:17 and sunset at 17:33 -03.
Sunshine
In May, the average sunshine in Januária is 8.9h.UV index
January through July, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Januária. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Januária, Brazil
- Average high temperature in May: 28.2°C
The warmest month (with the highest average high temperature) is September (32.9°C).
The month with the lowest average high temperature is June (27.9°C).
- Average low temperature in May: 17.4°C
The month with the highest average low temperature is October (20.5°C).
The coldest month (with the lowest average low temperature) is July (15.8°C).
Average pressure in May
Januária, Brazil
- Average pressure in May: 1015.8mbar
The month with the highest atmospheric pressure is July (1018.4mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).
Average wind speed in May
Januária, Brazil
- Average wind speed in May: 6.9km/h
The windiest month (with the highest average wind speed) is September (9.7km/h).
The calmest month (with the lowest average wind speed) is March (6km/h).
Average humidity in May
Januária, Brazil
- Average humidity in May: 75%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is September (46%).
Average rainfall in May
Januária, Brazil
- Average rainfall in May: 16mm
The wettest month (with the highest rainfall) is December (120mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in May
Januária, Brazil
- Average rainfall days in May: 7.8 days
The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is July (1.4 days).
Average daylight in May /
Average sunshine in May
Januária, Brazil
- Average daylight in May: 11h and 24min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is September (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 42min).
Average sunshine days in May
Januária, Brazil
- Average sunshine days in May: 21.8 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is November (7 days).
Average UV index in May
Januária, Brazil
- Average UV index in May: 6
The months with the highest UV index are August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, October, November and December (UV index 6).
Average cloud cover in May
Januária, Brazil
- Average cloud cover in May: 34
The month with the most cloud cover is November (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in May
Januária, Brazil
- Average visibility in May: 9km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).





