June weather forecast
Merida, Mexico

June brings a slight shift in weather conditions in Merida. A significant increase in rainfall averaging at 99mm (3.9"), can be observed which brings a little relief from hot days. The city remains mostly warm even though the rainfall provides some respite. Despite the showers, there is an ample amount of sunshine ensuring clear skies most of the time. With high temperatures and significant rainfall, June is an off-season in terms of tourism.

Temperature

The average high-temperature in June, at a tropical 34.3°C (93.7°F), reveals a modest deviation from May's 35.4°C (95.7°F). During June, the average low-temperature is a warm 24.3°C (75.7°F).

Heat index

Throughout June, the heat index is estimated at a life-threatening hot 49°C (120.2°F). Remain cautious: Heat cramps along with heat exhaustion are foreseeable. Ongoing activity may precipitate heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in June is 72%.

Rainfall

June is the month with the most rainfall. Rain falls for 19.3 days and accumulates 99mm (3.9") of precipitation.

Daylight

The month with the longest days is June, with an average of 13h and 24min of daylight.
On the first day of the month, sunrise is at 5:16 am and sunset at 6:36 pm. On the last day of June, sunrise is at 5:20 am and sunset at 6:43 pm CST.

Sunshine

In Merida, the average sunshine in June is 10.1h.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in June converts into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.