May weather forecast
Altaneira, Brazil

May

Weather in May

May, the last month of the autumn in Altaneira, is also a moderately hot month, with an average temperature ranging between min 19.1°C (66.4°F) and max 28.4°C (83.1°F).

Temperature

The transition from April to May brings an average high-temperature of a still warm 28.4°C (83.1°F), barely different from April's 28.8°C (83.8°F). The low-temperature averages to a refreshing 19.1°C (66.4°F) during the nights of May.

Heat index

The heat index value for May is evaluated at a hot 33°C (91.4°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
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 elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

In Altaneira, the average relative humidity in May is 77%.

Rainfall

In Altaneira, in May, during 15.9 rainfall days, 55mm (2.17") of precipitation is typically accumulated. In Altaneira, during the entire year, the rain falls for 172.3 days and collects up to 764mm (30.08") of precipitation.

Daylight

In Altaneira, Brazil, the average length of the day in May is 11h and 48min.
On the first day of the month, sunrise is at 05:40 and sunset at 17:31. On the last day of May, sunrise is at 05:44 and sunset at 17:29 -03.

Sunshine

In Altaneira, the average sunshine in May is 7.5h.

UV index

January through August and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

Is it hot during May?
The high-temperature during May is 28.4°C (83.1°F) and the low-temperature is 19.1°C (66.4°F). In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 33°C (91.4°F).
What is the average humidity in May in Altaneira?
The average relative humidity in May is 77%.
How much does it rain in May?
In Altaneira, during May, the rain falls for 15.9 days and regularly aggregates up to 55mm (2.17") of precipitation.
What is the average length of the day in May?
The average day length in May is 11h and 48min.
When are sunrise and sunset in May?
On the first day of May, sunrise is at 05:40 and sunset at 17:31. On the last day of the month, sunrise is at 05:44 and sunset at 17:29 -03.
How long on average sun shines in May?
In Altaneira, the average sunshine duration in May is 7.5h.
When is the lowest UV index?
January through August and December, with an average maximum UV index of 6, are months with the lowest UV index in Altaneira.
What is the UV index reading in May?
In Altaneira, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Altaneira, Brazil
Average temperature in May
Altaneira, Brazil
  • Average high temperature in May: 28.4°C

The warmest months (with the highest average high temperature) are October and November (32.5°C).
The months with the lowest average high temperature are June and July (28°C).

  • Average low temperature in May: 19.1°C

The month with the highest average low temperature is November (21.5°C).
The coldest month (with the lowest average low temperature) is August (17.1°C).

Average pressure in May - Altaneira, Brazil
Average pressure in May
Altaneira, Brazil
  • Average pressure in May: 1013.3mbar

The month with the highest atmospheric pressure is July (1015.6mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).

Average wind speed in May - Altaneira, Brazil
Average wind speed in May
Altaneira, Brazil
  • Average wind speed in May: 13.2km/h

The windiest month (with the highest average wind speed) is July (18.5km/h).
The calmest month (with the lowest average wind speed) is March (9.4km/h).

Average humidity in May - Altaneira, Brazil
Average humidity in May
Altaneira, Brazil
  • Average humidity in May: 77%

The month with the highest relative humidity is April (78%).
The month with the lowest relative humidity is October (52%).

Average rainfall in May - Altaneira, Brazil
Average rainfall in May
Altaneira, Brazil
  • Average rainfall in May: 55mm

The wettest month (with the highest rainfall) is March (154mm).
The driest month (with the least rainfall) is August (2mm).

Average rainfall days in May - Altaneira, Brazil
Average rainfall days in May
Altaneira, Brazil
  • Average rainfall days in May: 15.9 days

The month with the highest number of rainy days is March (26.6 days).
The month with the least rainy days is August (2.5 days).

Average daylight in May / Average sunshine in May - Altaneira, Brazil
Average daylight in May /
Average sunshine in May
Altaneira, Brazil
  • Average daylight in May: 11h and 5min

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 42min).

  • Average sunshine in May: 7h and 3min

The month with the most sunshine is September (Average sunshine: 9h and 30min).
The month with the least sunshine is March (Average sunshine: 6h and 48min).

Average sunshine days in May - Altaneira, Brazil
Average sunshine days in May
Altaneira, Brazil
  • Average sunshine days in May: 11 days

The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is March (2.8 days).

Average UV index in May - Altaneira, Brazil
Average UV index in May
Altaneira, Brazil
  • Average UV index in May: 6

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

Average cloud cover in May - Altaneira, Brazil
Average cloud cover in May
Altaneira, Brazil
  • Average cloud cover in May: 45

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 20).

Average visibility in May - Altaneira, Brazil
Average visibility in May
Altaneira, Brazil
  • Average visibility in May: 9km

The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are March and April (8km).

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