April weather forecast
San Antonio, Paraguay

April marks a significant change with a shift in weather conditions taking place. Trailing the summer months, the temperature continues to gradually drop, ushering in San Antonio's mild autumn. The city experiences a further decline in high temperature, bottoming at 28.7°C (83.7°F), and more sporadic rainfall compared to March. Despite this, the amount of sunlight the city receives remains fairly constant from the previous month. The relative humidity also begins to increase, creating a slightly heavy atmosphere during the day.

Temperature

San Antonio's April weather features a light decline in high-temperatures, reducing from a tropical 31.8°C (89.2°F) in March to a warm 28.7°C (83.7°F). An average low-temperature of 18.2°C (64.8°F) is recorded during the nights in April.

Heat index

The heat index value for April is estimated at a tropical 33°C (91.4°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

The average relative humidity in April is 76%.

Rainfall

In San Antonio, in April, it is raining for 11.8 days, with typically 78mm (3.07") of accumulated precipitation. Throughout the year, there are 153.2 rainfall days, and 865mm (34.06") of precipitation is accumulated.

Daylight

In April, the average length of the day is 11h and 29min.
On the first day of April, sunrise is at 05:59 and sunset at 17:48. On the last day of the month, sunrise is at 06:12 and sunset at 17:21 -04.

Sunshine

The average sunshine in April is 8.2h.

UV index

In San Antonio, the average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 in April translates into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.