August weather forecastTulum, Mexico

August
Weather in August
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Tulum, Mexico
- Average high temperature in August: 31.8°C
The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (26.7°C).
- Average low temperature in August: 26°C
The month with the highest average low temperature is August (26°C).
The coldest month (with the lowest average low temperature) is January (20.8°C).
Average pressure in August
Tulum, Mexico
- Average pressure in August: 1013.6mbar
The month with the highest atmospheric pressure is January (1017.4mbar).
The month with the lowest atmospheric pressure is September (1012.3mbar).
Average wind speed in August
Tulum, Mexico
- Average wind speed in August: 10.4km/h
The windiest month (with the highest average wind speed) is March (13.1km/h).
The calmest month (with the lowest average wind speed) is September (10km/h).
Average humidity in August
Tulum, Mexico
- Average humidity in August: 77%
The months with the highest relative humidity are June and October (80%).
The month with the lowest relative humidity is March (73%).
Average rainfall in August
Tulum, Mexico
- Average rainfall in August: 83mm
The wettest month (with the highest rainfall) is June (139mm).
The driest month (with the least rainfall) is March (21mm).
Average rainfall days in August
Tulum, Mexico
- Average rainfall days in August: 21.1 days
The month with the highest number of rainy days is September (23.2 days).
The month with the least rainy days is April (11.3 days).
Average sea temperature in August
Tulum, Mexico
- Average sea temperature in August: 29°C
The best months for swimming (with the highest average sea temperature) are August, September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February and March (26°C).
Average daylight in August /
Average sunshine in August
Tulum, Mexico
- Average daylight in August: 12h and 48min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in August: 9h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 54min).
Average sunshine days in August
Tulum, Mexico
- Average sunshine days in August: 7.1 days
The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is September (4.8 days).
Average UV index in August
Tulum, Mexico
- Average UV index in August: 7
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in August
Tulum, Mexico
- Average cloud cover in August: 29
The month with the most cloud cover is June (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in August
Tulum, Mexico
- Average visibility in August: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, November and December (10km).
The month with the lowest visibility is October (9km).





