June weather forecast
Jaco, Costa Rica

June continues the rainy season trend in Jaco, Costa Rica, with high humidity and rainfall becoming the norm. Nevertheless, sunlight hours remain high, ensuring bright days and vibrant sunsets in between the showers. The sea remains warm and inviting for those willing to venture outdoors. Conditions in June are typically calm with lower wind speeds ensuring a balanced atmosphere. Despite the rainfall, the weather remains comfortably warm, perfect for visiting exotic ecosystems.

Temperature

In June, Jaco experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 29.5°C (85.1°F) in May to a still moderately hot 28.8°C (83.8°F). June introduces a small decrease to a nighttime average of 25.5°C (77.9°F).

Heat index

June's average heat index is estimated at a hot 34°C (93.2°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

The months with the highest humidity are June and October, with an average relative humidity of 80%.

Rainfall

In Jaco, during June, the rain falls for 24.7 days and regularly aggregates up to 161mm (6.34") of precipitation. In Jaco, during the entire year, the rain falls for 236.2 days and collects up to 1501mm (59.09") of precipitation.

Sea temperature

In June, the average sea temperature is 28.8°C (83.8°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

June has the longest days of the year in Jaco, with an average of 12h and 42min of daylight.
On the first day of June in Jaco, sunrise is at 05:16 and sunset at 17:56. On the last day of the month, sunrise is at 05:22 and sunset at 18:02 CST.

Sunshine

The average sunshine in June is 9.3h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Jaco. The months with the lowest UV index in Jaco are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 7 during June translates into the following directions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.