August weather forecast
Tulum, Mexico

Weather in August at Tulum remains within the peripheries of the summer season, showcasing bright days with a mixture of sun, heat, and rain. The marked characteristic is the slight bump in rainfall to 83mm (3.27") and relative humidity at 77%, both higher than in July. Night temperatures are too warm to provide much relief from the day's heat, and sea temperatures maintain its inviting tropical warmth, holding steady at 29°C (84.2°F). Despite the occasional showers, Tulum still enjoys beautiful, sunny days, amply suited for sightseeing and beach hopping.

Temperature

In Tulum, temperatures reach their average annual highs in August, measuring 31.8°C (89.2°F) and a minimum average of 26°C (78.8°F).

Heat index

In August, the average heat index is appraised at a blistering 42°C (107.6°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In Tulum, the average relative humidity in August is 77%.

Rainfall

In August, the rain falls for 21.1 days. Throughout August, 83mm (3.27") of precipitation is accumulated. Throughout the year, there are 210.8 rainfall days, and 810mm (31.89") of precipitation is accumulated.

Sea temperature

August through October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

In August, the average length of the day is 12h and 48min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:27 pm. On the last day of August, in Tulum, sunrise is at 6:34 am and sunset at 7:05 pm EST.

Sunshine

The months with the most sunshine are July and August, with an average of 9.2h of sunshine.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 7 in August translates into these instructions:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Heed this! UV intensity is much stronger when reflected off sand and water.