June weather forecast
Jakarta, Indonesia

June in Jakarta is characterised by the continuation of the dry season. This month sees a further reduction in rainfall, with the total precipitation falling to 67mm (2.64"). The decreasing trend of rainfall and cloud coverage contributes to the increase in sunshine hours compared to the previous month. June's weather makes it an excellent choice for sun-seekers and outdoor enthusiasts. On top of this, the slightly cooler sea temperature of 29°C (84.2°F) compared to May's 30°C (86°F) makes beach activities even more appealing.

Temperature

June notes an average high-temperature of a still tropical 30.8°C (87.4°F), subtly differing from May's 31.2°C (88.2°F). Jakarta observes an average nighttime low-temperature of 25.7°C (78.3°F) during the month of June.

Heat index

In June, the average heat index is calculated to be a sweltering 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Jakarta, the average relative humidity in June is 72%.

Rainfall

In June, the rain falls for 18.8 days. Throughout June, 67mm (2.64") of precipitation is accumulated. Throughout the year, there are 252 rainfall days, and 1150mm (45.28") of precipitation is accumulated.

Sea temperature

In June, the average sea temperature in Jakarta, Indonesia, is 29°C (84.2°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

With an average of 11h and 48min of daylight, June has the shortest days of the year in Jakarta.
On the first day of the month, sunrise is at 05:56 and sunset at 17:44. On the last day of June, in Jakarta, sunrise is at 06:03 and sunset at 17:49 WIB.

Sunshine

The average sunshine in June in Jakarta is 8.2h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In June, an average UV index of 7 transforms into the following instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Warning! The Sun's UV rays intensify with reflections from sand and water.