August weather forecast and climate
Piedras Negras, Mexico

August, the last month of the summer, in Piedras Negras, is also a sweltering month, with average temperature fluctuating between 26.3°C (79.3°F) and 37.2°C (99°F).

Temperature

August is the warmest month, with an average high-temperature of 37.2°C (99°F) and an average low-temperature of 26.3°C (79.3°F).

Heat index

The average heat index in August is evaluated at a blistering 44.8°C (112.6°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, wind, clothing). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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 heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

With an average relative humidity of 47%, August is the least humid month.

Rainfall

In Piedras Negras, in August, it is raining for 5.9 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, in Piedras Negras, there are 89.7 rainfall days, and 341mm (13.43") of precipitation is accumulated.

Snowfall

In Piedras Negras snow does not fall in January through November.

Daylight

In August, the average length of the day in Piedras Negras is 13.1h.

Sunshine

In Piedras Negras, the average sunshine is 9.7h.

UV index

June through August, with an average maximum UV index of 8, are months with the highest UV index in Piedras Negras, Mexico. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 8 in August transform into the following instructions:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the warmest month in Piedras Negras?

With an average high-temperature of 37.2°C (99°F) and an average low-temperature of 26.3°C (79.3°F), August is the warmest month in Piedras Negras, Mexico.

What is the temperature in August in Piedras Negras?

In August, in Piedras Negras, Mexico, the average high-temperature is 37.2°C (99°F), and the average low-temperature is 26.3°C (79.3°F). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that factores the actual air temperature with the relative humidity, is calculated to 44.8°C (112.6°F).

What is the least humid month in Piedras Negras?

August is the least humid month, with an average relative humidity of 47%.

What is the average humidity in August in Piedras Negras?

In August, the average relative humidity is 47%.

How many days does it rain in August in Piedras Negras?

In Piedras Negras, Mexico, in August, it is raining for 5.9 days, with typically 24mm (0.94") of accumulated precipitation.

When it does not snow in Piedras Negras?

In Piedras Negras snow does not fall in January through November.

What is the average length of the day in August in Piedras Negras?

In Piedras Negras, Mexico, the average length of the day in August is 13.1h.

How long on average sun shines in August in Piedras Negras?

In August, the average sunshine is 9.7h.

When is the highest UV index in Piedras Negras?

Months with the highest UV index are June through August, with an average maximum UV index of 8.

What is the UV index intensity in August in Piedras Negras?

The average daily maximum UV index in August in Piedras Negras, Mexico, is 8. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in August - Piedras Negras, Mexico
  • Average high temperature in August: 37.2°C

The warmest month (with the highest average high temperature) is August (37.2°C).
The month with the lowest average high temperature is January (18.3°C).

  • Average low temperature in August: 26.3°C

The month with the highest average low temperature is August (26.3°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).

Average pressure in August - Piedras Negras, Mexico
  • Average pressure in August: 1013mbar

The month with the highest atmospheric pressure is January (1020.7mbar).
The month with the lowest atmospheric pressure is May (1011.6mbar).

Average wind speed in August - Piedras Negras, Mexico
  • Average wind speed in August: 16.4km/h

The windiest month (with the highest average wind speed) is June (18.8km/h).
The calmest month (with the lowest average wind speed) is December (12.4km/h).

Average humidity in August - Piedras Negras, Mexico
  • Average humidity in August: 47%

The month with the highest relative humidity is November (60%).
The month with the lowest relative humidity is August (47%).

Average rainfall in August - Piedras Negras, Mexico
  • Average rainfall in August: 24mm

The wettest month (with the highest rainfall) is May (75mm).
The driest months (with the least rainfall) are January and February (8mm).

Average rainfall days in August - Piedras Negras, Mexico
  • Average rainfall days in August: 5.9 days

The month with the highest number of rainy days is September (13.8 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in August - Piedras Negras, Mexico
  • Average snowfall in August: 0mm

The month with the highest snowfall is December (1mm).
Months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in August - Piedras Negras, Mexico
  • Average snowfall days in August: 0 days

Months with the highest number of snowfall days are January, February and December (0.1 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in August / Average sunshine in August - Piedras Negras, Mexico
  • Average daylight in August: 13.1h

The month with the longest days is June (Average daylight: 14h).
The month with the shortest days is December (Average daylight: 10.3h).

  • Average sunshine in August: 9.7h

The month with the most sunshine is June (Average sunshine: 11.1h).
The month with the least sunshine is November (Average sunshine: 6h).

Average sunshine days in August - Piedras Negras, Mexico
  • Average sunshine days in August: 23.4 days

The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is September (14.7 days).

Average UV index in August - Piedras Negras, Mexico
  • Average UV index in August: 8

Months with the highest UV index are June, July and August (UV index 8).
Months with the lowest UV index are January and December (UV index 4).

Average cloud cover in August - Piedras Negras, Mexico
  • Average cloud cover in August: 16

The month with the most cloud cover is May (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in August - Piedras Negras, Mexico
  • Average visibility in August: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).