May weather forecastPalmas, Brazil

May

Weather in May

May, the last month of the autumn in Palmas, is another hot month, with an average temperature varying between 30.4°C (86.7°F) and 21.4°C (70.5°F).

Temperature

The commencement of May brings an average high-temperature of a still hot 30.4°C (86.7°F), marking an inconsequential divergence from April. During May, Palmas consistently records a temperature low averaging a pleasant 21.4°C (70.5°F).

Heat index

May's mean heat index is calculated to be a fiery hot 38°C (100.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in May is 77%.

Rainfall

In Palmas, during May, the rain falls for 15.3 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, there are 198 rainfall days, and 907mm (35.71") of precipitation is accumulated.

Daylight

In May, the average length of the day is 11h and 39min.
On the first day of the month, sunrise is at 06:18 and sunset at 18:02. On the last day of May, sunrise is at 06:24 and sunset at 17:58 -03.

Sunshine

The month with the least sunshine is May, with an average of 7.3h of sunshine.

UV index

The months with the lowest UV index are February through May and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. 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.

Frequently asked questions

The average high-temperature and low-temperature during May are 30.4°C (86.7°F) and 21.4°C (70.5°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in May is calculated to be 38°C (100.4°F).

In May, the average relative humidity is 77%.

In Palmas, in May, during 15.3 rainfall days, 44mm (1.73") of precipitation is typically accumulated.

In May, the average day length is 11h and 39min.

On the first day of May, sunrise is at 06:18 and sunset at 18:02. On the last day of the month, sunrise is at 06:24 and sunset at 17:58 -03.

With an average of 7.3h of sunshine, May has the least sunshine of the year.

In May, the average sunshine duration is 7.3h.

The months with the lowest UV index are February through May and December, with an average maximum UV index of 6.

In Palmas, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
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
Palmas, Brazil

  • Average high temperature in May: 30.4°C

The warmest month (with the highest average high temperature) is September (37.5°C).
The months with the lowest average high temperature are February, March and April (30.3°C).

  • Average low temperature in May: 21.4°C

The month with the highest average low temperature is September (24.7°C).
The coldest month (with the lowest average low temperature) is July (20.3°C).

Average pressure in May
Palmas, Brazil

  • Average pressure in May: 1012.6mbar

The months with the highest atmospheric pressure are June and July (1014.1mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).

Average wind speed in May
Palmas, Brazil

  • Average wind speed in May: 5.7km/h

The windiest months (with the highest average wind speed) are August and September (7.7km/h).
The calmest month (with the lowest average wind speed) is March (4.4km/h).

Average humidity in May
Palmas, Brazil

  • Average humidity in May: 77%

The month with the highest relative humidity is March (85%).
The month with the lowest relative humidity is September (34%).

Average rainfall in May
Palmas, Brazil

  • Average rainfall in May: 44mm

The wettest month (with the highest rainfall) is March (147mm).
The driest month (with the least rainfall) is July (0mm).

Average rainfall days in May
Palmas, Brazil

  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is March (28.3 days).
The months with the least rainy days are July and August (0.6 days).

Average daylight in May /
Average sunshine in May
Palmas, 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: 7h and 18min

The month with the most sunshine is October (Average sunshine: 10h and 48min).
The month with the least sunshine is May (Average sunshine: 7h and 18min).

Average sunshine days in May
Palmas, Brazil

  • Average sunshine days in May: 13.2 days

The month with the most sunshine days is July (30.4 days).
The month with the least sunshine days is March (1.6 days).

Average UV index in May
Palmas, Brazil

  • Average UV index in May: 6

The months with the highest UV index are August and September (UV index 8).
The months with the lowest UV index are February, March, April, May and December (UV index 6).

Average cloud cover in May
Palmas, Brazil

  • Average cloud cover in May: 34

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 12).

Average visibility in May
Palmas, 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 and December (8km).