May weather forecast
São Luís de Montes Belos, Brazil

May

Weather in May

May, the last month of the autumn in São Luís de Montes Belos, is another warm month, with an average temperature varying between 17°C (62.6°F) and 27.1°C (80.8°F).

Temperature

In São Luís de Montes Belos, the lowest average temperatures are observed in May, with a high of 27.1°C (80.8°F) and a low of 17°C (62.6°F).

Heat index

May's mean heat index is estimated at a hot 30°C (86°F). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In São Luís de Montes Belos, the average relative humidity in May is 81%.

Rainfall

In May, in São Luís de Montes Belos, the rain falls for 10.8 days. Throughout May, 25mm (0.98") of precipitation is accumulated. In São Luís de Montes Belos, during the entire year, the rain falls for 205.3 days and collects up to 1139mm (44.84") of precipitation.

Daylight

In May, the average length of the day in São Luís de Montes Belos is 11h and 20min.
On the first day of the month, sunrise is at 06:33 and sunset at 18:03. On the last day of May, sunrise is at 06:43 and sunset at 17:55 -03.

Sunshine

In São Luís de Montes Belos, the average sunshine in May is 9.3h.

UV index

In May, the average daily maximum UV index in São Luís de Montes Belos is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

What is the coldest time of year in São Luís de Montes Belos?
May, with an average high of 27.1°C (80.8°F) and a low of 17°C (62.6°F), signifies the coldest month of the year in São Luís de Montes Belos.
What are the temperatures in São Luís de Montes Belos in May?
The high-temperature, in May, in São Luís de Montes Belos, is 27.1°C (80.8°F), while the low-temperature averages to 17°C (62.6°F). In May, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 30°C (86°F).
What is the average humidity in May in São Luís de Montes Belos?
In São Luís de Montes Belos, Brazil, the average relative humidity in May is 81%.
How much does it rain in São Luís de Montes Belos in May?
In May, in São Luís de Montes Belos, Brazil, the rain falls for 10.8 days. Throughout May, 25mm (0.98") of precipitation is accumulated.
How many hours of daylight does São Luís de Montes Belos have in May?
In May, the average day length in São Luís de Montes Belos, Brazil, is 11h and 20min.
What time are sunrise and sunset in May in São Luís de Montes Belos?
In May, on the first day of the month, sunrise is at 06:33 and sunset at 18:03. On the last day of the month, in São Luís de Montes Belos, Brazil, sunrise is at 06:43 and sunset at 17:55 -03.
How many hours of sunshine does São Luís de Montes Belos have in May?
The average sunshine duration in May in São Luís de Montes Belos is 9.3h.
What is the UV index intensity in May in São Luís de Montes Belos?
In São Luís de Montes Belos, the average daily maximum UV index in May is 6. A UV Index reading 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - São Luís de Montes Belos, Brazil
Average temperature in May
São Luís de Montes Belos, Brazil
  • Average high temperature in May: 27.1°C

The warmest month (with the highest average high temperature) is September (34.1°C).
The month with the lowest average high temperature is May (27.1°C).

  • Average low temperature in May: 17°C

The month with the highest average low temperature is September (21°C).
The coldest months (with the lowest average low temperature) are June and July (16.6°C).

Average pressure in May - São Luís de Montes Belos, Brazil
Average pressure in May
São Luís de Montes Belos, Brazil
  • Average pressure in May: 1014.9mbar

The month with the highest atmospheric pressure is July (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).

Average wind speed in May - São Luís de Montes Belos, Brazil
Average wind speed in May
São Luís de Montes Belos, Brazil
  • Average wind speed in May: 6.9km/h

The windiest month (with the highest average wind speed) is August (8.9km/h).
The calmest month (with the lowest average wind speed) is March (5.3km/h).

Average humidity in May - São Luís de Montes Belos, Brazil
Average humidity in May
São Luís de Montes Belos, Brazil
  • Average humidity in May: 81%

The month with the highest relative humidity is March (89%).
The month with the lowest relative humidity is August (39%).

Average rainfall in May - São Luís de Montes Belos, Brazil
Average rainfall in May
São Luís de Montes Belos, Brazil
  • Average rainfall in May: 25mm

The wettest month (with the highest rainfall) is December (199mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in May - São Luís de Montes Belos, Brazil
Average rainfall days in May
São Luís de Montes Belos, Brazil
  • Average rainfall days in May: 10.8 days

The month with the highest number of rainy days is December (29.3 days).
The month with the least rainy days is August (0.8 days).

Average daylight in May / Average sunshine in May - São Luís de Montes Belos, Brazil
Average daylight in May /
Average sunshine in May
São Luís de Montes Belos, Brazil
  • Average daylight in May: 11h and 2min

The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).

  • Average sunshine in May: 9h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).

Average sunshine days in May - São Luís de Montes Belos, Brazil
Average sunshine days in May
São Luís de Montes Belos, Brazil
  • Average sunshine days in May: 18.6 days

The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is February (0.9 days).

Average UV index in May - São Luís de Montes Belos, Brazil
Average UV index in May
São Luís de Montes Belos, 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 February and March (UV index 5).

Average cloud cover in May - São Luís de Montes Belos, Brazil
Average cloud cover in May
São Luís de Montes Belos, Brazil
  • Average cloud cover in May: 29

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 11).

Average visibility in May - São Luís de Montes Belos, Brazil
Average visibility in May
São Luís de Montes Belos, Brazil
  • Average visibility in May: 8km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April and December (7km).

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