April weather forecast
Santa Ana, Costa Rica

In April, Santa Ana, Costa Rica, witnesses a significant leap in rainfall bringing about a noticeable departure in weather conditions from March. With warmer temperatures settling in, pressure levels showing no significant fluctuations, and considerably frequent rainfall, the onset of the rainy season in Santa Ana is evident. The temperatures vary from 17.4°C (63.3°F) to 28°C (82.4°F) accompanied by a substantial amount of rainfall, accumulating to 100mm (3.94") over 21.8 days. Despite the increased rainfall, sunshine hours remain relatively high, indicative of the tropical climate.

Temperature

Santa Ana's temperatures tend to reach their peak averages in April, with a high of 28°C (82.4°F) and a low of 17.4°C (63.3°F).

Heat index

April's mean heat index is evaluated at a tropical 31°C (87.8°F). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In Santa Ana, the average relative humidity in April is 74%.

Rainfall

In Santa Ana, Costa Rica, in April, it is raining for 21.8 days, with typically 100mm (3.94") of accumulated precipitation. In Santa Ana, during the entire year, the rain falls for 289.2 days and collects up to 2603mm (102.48") of precipitation.

Daylight

The average length of the day in April is 12h and 21min.
On the first day of April, sunrise is at 05:33 and sunset at 17:47. On the last day of the month, sunrise is at 05:19 and sunset at 17:48 CST.

Sunshine

In April, the average sunshine is 8.9h.

UV index

The months with the highest UV index in Santa Ana are March and April, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in April converts into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.