May weather forecastCaiçara do Rio do Vento, Brazil

May

Weather in May

The last month of the autumn, May, is also a hot month in Caiçara do Rio do Vento, Brazil, with an average temperature fluctuating between 30.5°C (86.9°F) and 23.9°C (75°F).

Temperature

Stepping into May, Caiçara do Rio do Vento records an average high-temperature of a still hot 30.5°C (86.9°F), almost consistent with April. Caiçara do Rio do Vento temperatures generally rest at a low of 23.9°C (75°F) during the May nights.

Heat index

In May, the average heat index is calculated to be a sweltering 39°C (102.2°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the highest humidity are May through July, with an average relative humidity of 79%.

Rainfall

In May, in Caiçara do Rio do Vento, the rain falls for 16.8 days. Throughout May, 40mm (1.57") of precipitation is accumulated. Throughout the year, there are 184.7 rainfall days, and 414mm (16.3") of precipitation is accumulated.

Daylight

In May, the average length of the day is 11h and 52min.
On the first day of the month, sunrise is at 05:23 and sunset at 17:18. On the last day of May, sunrise is at 05:27 and sunset at 17:16 -03.

Sunshine

The average sunshine in May is 7.3h.

UV index

The months with the highest UV index in Caiçara do Rio do Vento are January through June, August through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

In Caiçara do Rio do Vento, 30.5°C (86.9°F) is the average high-temperature and 23.9°C (75°F) is the average low-temperature during May. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in May is calculated to be 39°C (102.2°F).

The months with the highest humidity in Caiçara do Rio do Vento are May through July, with an average relative humidity of 79%.

In May, the average relative humidity is 79%.

In Caiçara do Rio do Vento, in May, it is raining for 16.8 days, with typically 40mm (1.57") of accumulated precipitation.

The average day length in May is 11h and 52min.

On the first day of May, sunrise is at 05:23 and sunset at 17:18. On the last day of the month, sunrise is at 05:27 and sunset at 17:16 -03.

In Caiçara do Rio do Vento, Brazil, the average sunshine duration in May is 7.3h.

The months with the highest UV index are January through June, August through December, with an average maximum UV index of 7.

The average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Caiçara do Rio do Vento, Brazil

  • Average high temperature in May: 30.5°C

The warmest month (with the highest average high temperature) is March (31.7°C).
The month with the lowest average high temperature is July (28.7°C).

  • Average low temperature in May: 23.9°C

The months with the highest average low temperature are February and March (25.2°C).
The coldest month (with the lowest average low temperature) is August (22.1°C).

Average pressure in May
Caiçara do Rio do Vento, Brazil

  • Average pressure in May: 1012.5mbar

The month with the highest atmospheric pressure is August (1014.9mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).

Average wind speed in May
Caiçara do Rio do Vento, Brazil

  • Average wind speed in May: 17.3km/h

The windiest month (with the highest average wind speed) is September (23.2km/h).
The calmest month (with the lowest average wind speed) is April (16km/h).

Average humidity in May
Caiçara do Rio do Vento, Brazil

  • Average humidity in May: 79%

The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is November (69%).

Average rainfall in May
Caiçara do Rio do Vento, Brazil

  • Average rainfall in May: 40mm

The wettest month (with the highest rainfall) is March (86mm).
The driest month (with the least rainfall) is September (5mm).

Average rainfall days in May
Caiçara do Rio do Vento, Brazil

  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is September (7.6 days).

Average daylight in May /
Average sunshine in May
Caiçara do Rio do Vento, Brazil

  • Average daylight in May: 11h and 54min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).

  • Average sunshine in May: 7h and 18min

The months with the most sunshine are October and November (Average sunshine: 8h and 0min).
The month with the least sunshine is July (Average sunshine: 6h and 30min).

Average sunshine days in May
Caiçara do Rio do Vento, Brazil

  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is February (3.5 days).

Average UV index in May
Caiçara do Rio do Vento, Brazil

  • Average UV index in May: 7

The months with the highest UV index are January, February, March, April, May, June, August, September, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 6).

Average cloud cover in May
Caiçara do Rio do Vento, Brazil

  • Average cloud cover in May: 44

The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 38).

Average visibility in May
Caiçara do Rio do Vento, 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).