March weather forecast
Merida, Mexico

The month of March ushers in Merida's warm season. The notable rise in temperature, reaching up to 32.4°C (90.3°F), commences the beginning of hot weather. The city experiences increased daylight hours and more sunshine, leading to longer and warmer days. March's overall weather is a blend of higher temperatures and decreasing rainfall. This month is ideal for those who prefer the warmer weather despite the potentially high UV index.

Temperature

The advent of March denotes an average high-temperature of a still hot 32.4°C (90.3°F), subtly different from February's 30.6°C (87.1°F). Merida documents a substantial deviation from daytime highs with a consistent low-temperature of 20.2°C (68.4°F) during March nights.

Heat index

March's heat index is appraised at a fiery hot 39°C (102.2°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely vital to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In March, the average relative humidity in Merida is 64%.

Rainfall

The months with the least rainfall in Merida are February and March Rain falls for 7.2 days and accumulates 12mm (0.47") of rain.

Daylight

The average length of the day in March in Merida is 12h and 2min.
On the first day of the month, sunrise is at 6:17 am and sunset at 6:03 pm. On the last day of March, sunrise is at 5:51 am and sunset at 6:12 pm CST.

Sunshine

In Merida, the average sunshine in March is 9.3h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 7 in March translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.