June weather forecast
Tulum, Mexico

June sees the full effect of the rainy season in Tulum, with the highest rainfall recorded for the year at 139mm (5.47"). While the frequency of rain increases, the temperatures maintain a steady warmth, complimented by increased sea temperatures for swimming and other water-based activities. Despite the rain, there are still approximately 8.2 sunshine hours per day. This June climate brings a new dimension to the Tulum experience, ushering in lush green landscapes and cascading waterfalls. It’s a great time to visit for the more adventurous seeking a mix of exploration and relaxation.

Temperature

June begins with an average high-temperature of a still hot 30.4°C (86.7°F), reflecting close similarity to the preceding month. Tulum, in the month of June, notes an average low temperature of 25.6°C (78.1°F), indicating a small decrease from the daytime highs.

Heat index

The heat index value during June is appraised at a very hot 39°C (102.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

June and October, with an average relative humidity of 80%, are the most humid months.

Rainfall

The month with the most rainfall is June, when the rain falls for 19.8 days and typically aggregates up to 139mm (5.47") of precipitation.

Sea temperature

In Tulum, in June, the average water temperature is 28°C (82.4°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

The month with the longest days is June, with an average of 13h and 18min of daylight.
On the first day of the month, sunrise is at 6:09 am and sunset at 7:26 pm. On the last day of June, sunrise is at 6:13 am and sunset at 7:33 pm EST.

Sunshine

The average sunshine in June is 8.2h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 7 during June leads to these instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.