June weather forecast
Chetumal, Mexico

June, the first month of the summer in Chetumal, is also a hot month, with an average temperature fluctuating between 25.1°C (77.2°F) and 31°C (87.8°F).

Temperature

June's onset records an average high-temperature of a still tropical 31°C (87.8°F), a near match to May's 31.8°C (89.2°F). An average low-temperature of 25.1°C (77.2°F) is common in Chetumal, Mexico, during the nights of June.

Heat index

For June, the heat index is computed to be a blistering 41°C (105.8°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Chetumal, the average relative humidity in June is 81%.

Rainfall

June is the month with the most rainfall in Chetumal, Mexico. Rain falls for 22.9 days and accumulates 124mm (4.88") of precipitation.

Sea temperature

In June, the average sea temperature is 29°C (84.2°F).
Note: Swimming, diving, and similar water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as very agreeable and pleasurable for lengthy periods without discomfort.

Daylight

The month with the longest days is June, with an average of 13h and 12min of daylight.
On the first day of the month, sunrise is at 6:15 am and sunset at 7:26 pm. On the last day of June, sunrise is at 6:20 am and sunset at 7:33 pm EST.

Sunshine

June has the least sunshine of the year in Chetumal, with an average of 7.6h of sunshine.

UV index

The months with the highest UV index in Chetumal are March through July and September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 during June translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning 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. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Attention! The combination of sand and water reflections enhances UV ray intensity.