April weather forecast
Coyolar, Costa Rica

April, like March, is a hot spring month in Coyolar, Costa Rica, with temperature in the range of an average high of 32.5°C (90.5°F) and an average low of 24.3°C (75.7°F).

Temperature

The beginning of April reveals an average high-temperature of a still tropical 32.5°C (90.5°F), showing minimal deviation from the previous month. April nights are marked by an average low-temperature of 24.3°C (75.7°F).

Heat index

Throughout April, the heat index is calculated to be an extremely hot 41°C (105.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In April, the average relative humidity in Coyolar is 67%.

Rainfall

In Coyolar, Costa Rica, in April, during 14.4 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, there are 218.6 rainfall days, and 1456mm (57.32") of precipitation is accumulated.

Daylight

In Coyolar, the average length of the day in April is 12h and 21min.
On the first day of April in Coyolar, sunrise is at 05:34 and sunset at 17:48. On the last day of the month, sunrise is at 05:21 and sunset at 17:49 CST.

Sunshine

In April, the average sunshine is 9.5h.

UV index

The months with the highest UV index are January through September and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 in April translates into these instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.