August weather forecast
Dumai, Indonesia

August, the last month of the summer in Dumai, is another hot month, with an average temperature fluctuating between 24.1°C (75.4°F) and 32.4°C (90.3°F).

Temperature

The initiation of August sees an average high-temperature of a still tropical 32.4°C (90.3°F), showing minor variations from the previous month. Dumai usually reports an average low-temperature of 24.1°C (75.4°F) during the month of August.

Heat index

The heat index value for August is appraised at a life-threatening hot 45°C (113°F). Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Dumai, the average relative humidity in August is 79%.

Rainfall

In Dumai, in August, during 24.8 rainfall days, 95mm (3.74") of precipitation is typically accumulated. Throughout the year, in Dumai, there are 286.4 rainfall days, and 1200mm (47.24") of precipitation is accumulated.

Sea temperature

In Dumai, in August, the average water temperature is 29.4°C (84.9°F).
Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods.

Daylight

In Dumai, the average length of the day in August is 12h and 10min.
On the first day of August, sunrise is at 06:15 and sunset at 18:26. On the last day of the month, sunrise is at 06:10 and sunset at 18:19 WIB.

Sunshine

The average sunshine in August in Dumai is 8.4h.

UV index

The months with the highest UV index are January through September and November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.