June weather forecastBontang, Indonesia
June
Weather in June
The first month of the summer, June, is still a hot month in Bontang, Indonesia, with an average temperature varying between 30.4°C (86.7°F) and 25.3°C (77.5°F).Temperature
The arrival of June coincides with an average high-temperature of a still tropical 30.4°C (86.7°F), indicating a minimal shift from May's 30.8°C (87.4°F). An average low-temperature of 25.3°C (77.5°F) is observed during June nights.Heat index
The average heat index in June is calculated to be a fiery hot 39°C (102.2°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
The average relative humidity in June is 79%.Rainfall
In Bontang, in June, during 20.9 rainfall days, 83mm (3.27") of precipitation is typically accumulated. Throughout the year, there are 260.5 rainfall days, and 1088mm (42.83") of precipitation is accumulated.Sea temperature
In Bontang, in June, the average water temperature is 29.7°C (85.5°F).Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.
Daylight
With an average of 12h and 6min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 06:04 and sunset at 18:11. On the last day of the month, sunrise is at 06:09 and sunset at 18:17 WITA.
Sunshine
In Bontang, 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. 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 risk from exposure to the Sun's UV rays for average individuals.Note: In June, a daily maximum UV index of 7 leads to the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Watch out! Reflections from sand and water can surge UV radiation exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Bontang, Indonesia
- Average high temperature in June: 30.4°C
The warmest month (with the highest average high temperature) is October (31.1°C).
The month with the lowest average high temperature is January (29.8°C).
- Average low temperature in June: 25.3°C
The month with the highest average low temperature is May (25.7°C).
The coldest months (with the lowest average low temperature) are August and September (24.8°C).
Average pressure in June
Bontang, Indonesia
- Average pressure in June: 1009.2mbar
The month with the highest atmospheric pressure is September (1009.7mbar).
The months with the lowest atmospheric pressure are November and December (1008.4mbar).
Average wind speed in June
Bontang, Indonesia
- Average wind speed in June: 8.2km/h
The windiest month (with the highest average wind speed) is August (10.2km/h).
The calmest months (with the lowest average wind speed) are May and November (7.6km/h).
Average humidity in June
Bontang, Indonesia
- Average humidity in June: 79%
The months with the highest relative humidity are January and December (80%).
The month with the lowest relative humidity is October (76%).
Average rainfall in June
Bontang, Indonesia
- Average rainfall in June: 83mm
The wettest month (with the highest rainfall) is December (129mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in June
Bontang, Indonesia
- Average rainfall days in June: 20.9 days
The month with the highest number of rainy days is January (25.3 days).
The month with the least rainy days is September (18.2 days).
Average sea temperature in June
Bontang, Indonesia
- Average sea temperature in June: 29.7°C
The best month for swimming (with the highest average sea temperature) is May (29.8°C).
The coldest month (with the lowest average sea temperature) is February (28.4°C).
Average daylight in June /
Average sunshine in June
Bontang, Indonesia
- Average daylight in June: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is October (Average daylight: 12h and 6min).
- Average sunshine in June: 8h and 12min
The month with the most sunshine is September (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 7h and 48min).
Average sunshine days in June
Bontang, Indonesia
- Average sunshine days in June: 7.9 days
The month with the most sunshine days is September (9.2 days).
The month with the least sunshine days is January (4.8 days).
Average UV index in June
Bontang, Indonesia
- Average UV index in June: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in June
Bontang, Indonesia
- Average cloud cover in June: 42
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in June
Bontang, Indonesia
- Average visibility in June: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





