May weather forecast
San Cristobal, Guatemala

May, the last month of the spring in San Cristobal, is another tropical month, with an average temperature varying between 30.9°C (87.6°F) and 21.7°C (71.1°F).

Temperature

As April turns into May, the average high-temperatures rest at a still tropical 30.9°C (87.6°F), showing a minor variation from the prior month. May in San Cristobal is noted for a mean low-temperature of 21.7°C (71.1°F).

Heat index

May's mean heat index is calculated to be a torrid 39°C (102.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. 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 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in May in San Cristobal is 76%.

Rainfall

In May, in San Cristobal, the rain falls for 24.2 days. Throughout May, 156mm (6.14") of precipitation is accumulated. Throughout the year, there are 169.5 rainfall days, and 865mm (34.06") of precipitation is accumulated.

Daylight

The average length of the day in May is 12h and 47min.
On the first day of the month, sunrise is at 05:36 and sunset at 18:15. On the last day of May, sunrise is at 05:29 and sunset at 18:23 CST.

Sunshine

In San Cristobal, the average sunshine in May is 10.8h.

UV index

January, February, May through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In May, a regular UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.