June weather forecast
Sidoarjo, Indonesia

The first month of the winter, June, is still a tropical month in Sidoarjo, Indonesia, with an average temperature varying between 24.9°C (76.8°F) and 30.3°C (86.5°F).

Temperature

In June, Sidoarjo notes an average high-temperature of a still hot 30.3°C (86.5°F), hardly different from the preceding month. An average nighttime temperature of 24.9°C (76.8°F) is observed during June.

Heat index

In June, the average heat index is calculated to be a torrid 36°C (96.8°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

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

Rainfall

In Sidoarjo, in June, it is raining for 9.1 days, with typically 14mm (0.55") of accumulated precipitation. Throughout the year, there are 188.4 rainfall days, and 840mm (33.07") of precipitation is accumulated.

Daylight

June has the shortest days of the year, with an average of 11h and 42min of daylight.
On the first day of June, sunrise is at 05:35 and sunset at 17:18. On the last day of the month, sunrise is at 05:42 and sunset at 17:23 WIB.

Sunshine

In June, the average sunshine is 9.8h.

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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 7 during June translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.