August weather forecast
Nuevo Vallarta, Mexico

August in Nuevo Vallarta attains marginally higher temperatures from 22.1°C (71.8°F) to 29.3°C (84.7°F). The high humidity lingers at 84%, maintaining the moist environment typical in tropical climates. The monsoon period remains in full swing as the month records 167mm (6.57") of rain across about 28 days. Whilst the rainfall is abundant, the sun shines for about 8.4 hours a day successfully battling the monsoon clouds. Ten kilometers of visibility remains consistent, preserving unobstructed exploration of the locale.

Temperature

Nuevo Vallarta's average high-temperature marks a still moderately hot 29.3°C (84.7°F) with the advent of August, closely mirroring that of the preceding month. Nuevo Vallarta, during the nights of August, experiences an average temperature drop to an agreeable 22.1°C (71.8°F).

Heat index

In August, the heat index is computed to be a sweltering 37°C (98.6°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 84%.

Rainfall

The month with the most rainfall is August, when the rain falls for 27.7 days and typically aggregates up to 167mm (6.57") of precipitation.

Daylight

In Nuevo Vallarta, the average length of the day in August is 12h and 49min.
On the first day of August, sunrise is at 6:35 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 7:17 pm CST.

Sunshine

The months with the least sunshine are August and September, with an average of 8.4h of sunshine.

UV index

The months with the highest UV index are January through November, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 in August translates into this advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.