April weather forecast
Herradura, Costa Rica

April introduces a change in Herradura's weather pattern. Roofed under abundant cloud cover, the city sees a significant increase in rainfall, hitting a hefty 68mm (2.68") compared to the previous months. This month’s weather endows a unique, tranquil atmosphere to the city, with cooler winds breezing across Herradura. The increase in relative humidity amplifies this tranquil atmosphere, perfect for those seeking a serene retreat. Amidst the rain, warm temperatures maintain, providing a gentle comfort blanketing the entirety of Herradura.

Temperature

In Herradura, April is the month with the highest recorded average temperatures, measuring a high of 30.4°C (86.7°F) and a low of 26.2°C (79.2°F).

Heat index

For most parts of April, the heat index is computed to be a sweltering 36°C (96.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Herradura, the average relative humidity in April is 71%.

Rainfall

In Herradura, in April, it is raining for 20.3 days, with typically 68mm (2.68") of accumulated precipitation. In Herradura, during the entire year, the rain falls for 236.2 days and collects up to 1501mm (59.09") of precipitation.

Sea temperature

The months with the warmest seawater in Herradura are March through August, with an average sea temperature of 29°C (84.2°F).
Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are considered superb and highly pleasant for water activities over extended periods.

Daylight

The average length of the day in April is 12h and 21min.
On the first day of the month, sunrise is at 05:35 and sunset at 17:49. On the last day of April, in Herradura, sunrise is at 05:21 and sunset at 17:49 CST.

Sunshine

In Herradura, the average sunshine in April is 9.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 7 during April, leads to the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Alert! UV radiation becomes sharper due to reflections from sand and water.