July weather forecast
Tulum, Mexico

In July, temperatures in Tulum reach their peak, resulting in warm and humid conditions. With July's weather characterized by a refreshing drop in rainfall to 51mm (2.01") compared to June's 139mm (5.47"), it's an excellent time for beach outings, swimming, and snorkeling. At this time of the year, sunlight is abundant with 13.2 hours of daylight and an impressive 9.2 hours of sunshine, the highest for the year. This sunny spectacle combined with a warm sea temperature delivers prime beach conditions. The overall ambiance during July is of an inviting tropical summer setting.

Temperature

The transition into July is marked with an average high-temperature of a still hot 31.5°C (88.7°F), showing an insignificant shift from June's 30.4°C (86.7°F). Tulum temperatures generally rest at a low of 25.8°C (78.4°F) during the July nights.

Heat index

The heat index value during July is appraised at a blisteringly hot 41°C (105.8°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', quantifies the warmth felt when relative humidity is considered. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

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

Rainfall

In Tulum, in July, during 17.8 rainfall days, 51mm (2.01") of precipitation is typically accumulated. In Tulum, during the entire year, the rain falls for 210.8 days and collects up to 810mm (31.89") of precipitation.

Sea temperature

In Tulum, in July, the average water temperature is 28°C (82.4°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

In July, the average length of the day in Tulum is 13h and 13min.
On the first day of July in Tulum, sunrise is at 6:13 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:27 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 in Tulum. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In July, the maximum UV index of 7 transforms into these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Notice! Sand and water reflections contribute to a stronger UV exposure.