April weather forecast
Sabalito, Costa Rica

April, the same as March, in Sabalito, Costa Rica, is a hot spring month, with an average temperature varying between 30.8°C (87.4°F) and 22.4°C (72.3°F).

Temperature

Sabalito notes an average high-temperature of a still hot 30.8°C (87.4°F) in April, hardly diverging from March. In April, the nighttime temperature lowers to an average of 22.4°C (72.3°F).

Heat index

April's average heat index is evaluated at a torrid 39°C (102.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. 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 hold great significance to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in April in Sabalito, Costa Rica, is 76%.

Rainfall

In April, in Sabalito, the rain falls for 25.1 days. Throughout April, 132mm (5.2") of precipitation is accumulated. Throughout the year, there are 309.5 rainfall days, and 2106mm (82.91") of precipitation is accumulated.

Daylight

In April, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 05:28 and sunset at 17:41. On the last day of April, sunrise is at 05:15 and sunset at 17:41 CST.

Sunshine

In April, the average sunshine in Sabalito, Costa Rica, is 9h.

UV index

The months with the highest UV index in Sabalito are March through May, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 7 during April translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.