June weather forecastSiantan, Indonesia

Weather in June

June, the first month of the summer in Siantan, is still a tropical month, with an average temperature ranging between max 32.3°C (90.1°F) and min 23.9°C (75°F).

Temperature

In June, a slight meteorological adjustment is experienced, with average high-temperatures matching those of the previous month. In the month of June, Siantan's average low-temperature falls to a moderately hot 23.9°C (75°F).

Heat index

In June, the average heat index is calculated to be a burning hot 46°C (114.8°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for 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.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in June is 82%.

Rainfall

In June, the rain falls for 19.9 days. Throughout June, 94mm (3.7") of precipitation is accumulated. In Siantan, during the entire year, the rain falls for 282.2 days and collects up to 1495mm (58.86") of precipitation.

Daylight

With an average of 12h and 6min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 05:37 and sunset at 17:44. On the last day of June, sunrise is at 05:42 and sunset at 17:50 WIB.

Sunshine

The average sunshine in June is 8.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. 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 vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 7 in June transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.