May weather forecastPiau, Brazil

May

Weather in May

May, the last month of the autumn in Piau, is also an agreeable month, with an average temperature fluctuating between 13.3°C (55.9°F) and 21.5°C (70.7°F).

Temperature

May experiences an average high-temperature of an agreeable 21.5°C (70.7°F), barely different from April's 23.1°C (73.6°F). An average low-temperature of 13.3°C (55.9°F) is observed during the May nights.

Humidity

In Piau, the average relative humidity in May is 90%.

Rainfall

In Piau, Brazil, in May, it is raining for 15.4 days, with typically 37mm (1.46") of accumulated precipitation. In Piau, during the entire year, the rain falls for 235.4 days and collects up to 1316mm (51.81") of precipitation.

Daylight

The average length of the day in May in Piau is 11h and 5min.
On the first day of May in Piau, sunrise is at 06:11 and sunset at 17:29. On the last day of the month, sunrise is at 06:23 and sunset at 17:18 -03.

Sunshine

In Piau, the average sunshine in May is 6.7h.

UV index

January through December, with an average maximum UV index of 5, are months with the highest UV index in Piau. January through December, with an average maximum UV index of 5, are months with the lowest UV index in Piau, Brazil. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 5 during May leads to these advisories:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In May, the average high-temperature and low-temperature are 21.5°C (70.7°F) and 13.3°C (55.9°F) respectively.

In Piau, the average relative humidity in May is 90%.

In May, the rain falls for 15.4 days. Throughout May, 37mm (1.46") of precipitation is accumulated.

In May, the average day length is 11h and 5min.

On the first day of May, sunrise is at 06:11 and sunset at 17:29. On the last day of the month, sunrise is at 06:23 and sunset at 17:18 -03.

In May, the average sunshine duration in Piau is 6.7h.

The months with the highest UV index are January through December, with an average maximum UV index of 5.

The months with the lowest UV index in Piau, Brazil, are January through December, with an average maximum UV index of 5.

In May, the average daily maximum UV index in Piau is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

23.1°C

21.5°C

20.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.6km/h

7.1km/h

7.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

6.4

11.7

15.3

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Piau, Brazil

Average high temperature in May: 21.5°C

The warmest month (with the highest average high temperature) is February (25.6°C).
The month with the lowest average high temperature is June (20.9°C).

Average low temperature in May: 13.3°C

The months with the highest average low temperature are January and December (17.6°C).
The coldest month (with the lowest average low temperature) is July (12°C).

Average pressure in May
Piau, Brazil

Average pressure in May: 1018.3mbar

The month with the highest atmospheric pressure is July (1021mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).

Average wind speed in May
Piau, Brazil

Average wind speed in May: 6.5km/h

The windiest month (with the highest average wind speed) is September (8.3km/h).
The calmest month (with the lowest average wind speed) is April (6km/h).

Average humidity in May
Piau, Brazil

Average humidity in May: 90%

The months with the highest relative humidity are March and April (92%).
The month with the lowest relative humidity is September (76%).

Average rainfall in May
Piau, Brazil

Average rainfall in May: 37mm

The wettest month (with the highest rainfall) is December (251mm).
The driest month (with the least rainfall) is July (14mm).

Average rainfall days in May
Piau, Brazil

Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is August (9.3 days).

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

Average daylight in May: 11h and 6min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 48min).

Average sunshine in May: 6h and 42min

The months with the most sunshine are August and September (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 5h and 24min).

Average sunshine days in May
Piau, Brazil

Average sunshine days in May: 11.7 days

The month with the most sunshine days is August (18.6 days).
The month with the least sunshine days is December (1.2 days).

Average UV index in May
Piau, Brazil

Average UV index in May: 5

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