April weather forecast
Tronadora, Costa Rica

Through April, a notable shift occurs in Tronadora’s weather as the rainy season begins to make its mark, with a significant increase from 5mm (0.2") to 36mm (1.42") of rainfall. Compared to March, the month experiences more frequent and pronounced shifts between sunshine and showers. With the onset of these showers, the landscape is vibrant and appears refreshed. April also sees an increase in the amount of moisture in the air. It may still be a good time to visit, especially for those who enjoy nature as the rain brings a new life to Tronadora's flora and fauna.

Temperature

April in Tronadora experiences an average high-temperature of a still hot 32.5°C (90.5°F), barely different from March's 32.8°C (91°F). Throughout April, an average nighttime temperature of 24.3°C (75.7°F) is experienced.

Heat index

During April, the heat index is appraised at a blisteringly hot 41°C (105.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in April is 67%.

Rainfall

In Tronadora, in April, it is raining for 14.4 days, with typically 36mm (1.42") of accumulated precipitation. Throughout the year, there are 218.6 rainfall days, and 1456mm (57.32") of precipitation is accumulated.

Daylight

In April, the average length of the day is 12h and 22min.
On the first day of April, sunrise is at 05:36 and sunset at 17:50. On the last day of the month, sunrise is at 05:21 and sunset at 17:51 CST.

Sunshine

In Tronadora, the average sunshine in April 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 reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In April, the UV index of 7 transforms into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.