July weather forecast
San Andrés, Guatemala

July, the same as June, in San Andrés, Guatemala, is another hot summer month, with temperature in the range of an average low of 21.5°C (70.7°F) and an average high of 32.8°C (91°F).

Temperature

The transition into July notes an average high-temperature of a still tropical 32.8°C (91°F), revealing a mild distinction from the 32.6°C (90.7°F) in June. July is noted for a mean low-temperature of 21.5°C (70.7°F).

Heat index

In July, the heat index is appraised at a blazing hot 46°C (114.8°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In July, the average relative humidity is 78%.

Rainfall

In San Andrés, in July, it is raining for 24.3 days, with typically 77mm (3.03") of accumulated precipitation. In San Andrés, Guatemala, during the entire year, the rain falls for 227.8 days and collects up to 871mm (34.29") of precipitation.

Daylight

The average length of the day in July is 13h and 2min.
On the first day of the month, sunrise is at 05:30 and sunset at 18:37. On the last day of July, sunrise is at 05:39 and sunset at 18:32 CST.

Sunshine

The average sunshine in July is 8.5h.

UV index

March through July, with an average maximum UV index of 7, are months with the highest UV index in San Andrés, Guatemala. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 in July interprets into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. 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.