May weather forecast
Puerto Barrios, Guatemala

May marks the onset of the wet season in Puerto Barrios, marked by the month's surge in rainfall up to 144mm (5.67"). The weather contrast is comprehensively felt as days become shorter and cloud cover increases. Despite the increased rainfall, the city's temperature and warm sea temperatures remain steady, offering a unique mix of wet yet warm weather. On a different note, elevations in relative humidity signal the arrival of a warmer, denser atmosphere consolidating the wet season’s onset.

Temperature

May brings an average high-temperature of a still hot 30.7°C (87.3°F), nearly identical to the preceding month. During May, the temperature tends to dip to an average of 23.9°C (75°F) at night.

Heat index

The heat index for May is evaluated at a blistering 40°C (104°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in May in Puerto Barrios is 80%.

Rainfall

In Puerto Barrios, in May, during 24.7 rainfall days, 144mm (5.67") of precipitation is typically accumulated. Throughout the year, there are 299.7 rainfall days, and 1707mm (67.2") of precipitation is accumulated.

Sea temperature

In Puerto Barrios, the average seawater temperature in May is 28.8°C (83.8°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

In Puerto Barrios, Guatemala, the average length of the day in May is 12h and 52min.
On the first day of May, sunrise is at 05:29 and sunset at 18:12. On the last day of the month, sunrise is at 05:22 and sunset at 18:22 CST.

Sunshine

The average sunshine in May in Puerto Barrios, Guatemala, is 10.2h.

UV index

March through June, August and September, 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 threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 in May interprets into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. 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. 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. Attention! UV radiation is markedly stronger with water and sand reflections.