June weather forecast
Jakarta, Indonesia

June, the first month of the winter in Jakarta, is still a hot month, with an average temperature ranging between max 30.8°C (87.4°F) and min 25.7°C (78.3°F).

Temperature

In Jakarta, the average high-temperature in June is almost the same as in May - a still hot 30.8°C (87.4°F). In Jakarta, Indonesia, the average low-temperature is 25.7°C (78.3°F).

Heat index

The average heat index in June is appraised at a very hot 38°C (100.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, wind, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

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

Rainfall

In Jakarta, in June, it is raining for 18.8 days, with typically 67mm (2.64") of accumulated precipitation. Throughout the year, in Jakarta, there are 252 rainfall days, and 1150mm (45.28") of precipitation is accumulated.

Sea temperature

In Jakarta, Indonesia, the average water temperature is 29°C (84.2°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

With an average of 11h and 46min of daylight, June has the shortest days of the year.
On the first day of the month, sunrise is at 05:56 and sunset at 17:43. On the last day of June, sunrise is at 06:03 and sunset at 17:49 WIB.

Sunshine

In Jakarta, the average sunshine in June is 8.2h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Jakarta. The months with the lowest UV index in Jakarta are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 7 in June transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.