April weather forecast
San Juan del Sur, Nicaragua

April signals the onset of slightly warmer weather in San Juan del Sur, with temperatures peaking at a warm 31.8°C (89.2°F). However, this increase doesn't deter water enthusiasts as the sea temperature stands at a pleasing 28.2°C (82.8°F). Accompanied by longer daylight durations, the warm weather provides ideal conditions for beach holidays and water sports. Although the rainfall moderately increases this month, it does not significantly disrupt outdoor activities. Sailing enthusiasts might find favourable conditions in the reduced wind speeds.

Temperature

April temperatures in San Juan del Sur tend to peak at an average high of 31.8°C (89.2°F) and dip to a low of 25.8°C (78.4°F).

Heat index

The heat index for April is evaluated at a sweltering 39°C (102.2°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The months with the lowest humidity in San Juan del Sur are March and April, with an average relative humidity of 69%.

Rainfall

In San Juan del Sur, in April, during 12.9 rainfall days, 14mm (0.55") of precipitation is typically accumulated. Throughout the year, there are 237.9 rainfall days, and 717mm (28.23") of precipitation is accumulated.

Sea temperature

In San Juan del Sur, in April, the average water temperature is 28.2°C (82.8°F).
Note: With water temperature from 25°C (77°F) to 29°C (84.2°F), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

In San Juan del Sur, the average length of the day in April is 12h and 23min.
On the first day of April, sunrise is at 05:39 and sunset at 17:54. On the last day of the month, sunrise is at 05:24 and sunset at 17:56 CST.

Sunshine

The average sunshine in April is 8.8h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in San Juan del Sur. 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 risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 7 in April leads to these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.