April weather forecast
Tulum, Mexico

The weather in April in Tulum is typically hot with a marked increase in temperature, especially during the day. The town experiences an increase in daylight to 12.6 hours, perfect for activities like exploring Mayan ruins or cenotes. April's distinguishable change drives an average pressure shift to 1013.8mb, while sea temperatures remain inviting at 27°C (80.6°F). Despite the April heat, a reasonable amount of sunshine ensures comfortable conditions. As the last month of the dry season, April makes for a delightful time to visit Tulum.

Temperature

April's presence marks an average high-temperature of a still moderately hot 29.8°C (85.6°F), subtly varied from March's 28.4°C (83.1°F). In Tulum, April nights witness a steady temperature drop to a still warm 24.1°C (75.4°F).

Heat index

The heat index in April is appraised at a torrid 36°C (96.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in April in Tulum is 76%.

Rainfall

In Tulum, during April, the rain falls for 11.3 days and regularly aggregates up to 31mm (1.22") of precipitation. 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 April, the average sea temperature is 27°C (80.6°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day in April is 12h and 37min.
On the first day of April, sunrise is at 6:42 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:13 pm EST.

Sunshine

The average sunshine in April is 8.8h.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In April, a regular UV index of 7 translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be on guard! The reflective nature of sand and water boosts UV exposure.