August weather forecast
Jayapura, Indonesia

The last month of the winter, August, is another warm month in Jayapura, Indonesia, with an average temperature varying between 28.8°C (83.8°F) and 22.8°C (73°F).

Temperature

Jayapura starts August with an average high-temperature of a still warm 28.8°C (83.8°F), hinting at a minimal fluctuation from July. Jayapura's nights in August cool down to an average low-temperature of 22.8°C (73°F).

Heat index

Throughout August, the heat index is calculated to be a very hot 35°C (95°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In August, the average relative humidity in Jayapura is 84%.

Rainfall

In Jayapura, in August, it is raining for 27.8 days, with typically 239mm (9.41") of accumulated precipitation. Throughout the year, in Jayapura, there are 327.5 rainfall days, and 2689mm (105.87") of precipitation is accumulated.

Sea temperature

March and August, with an average sea temperature of 29.1°C (84.4°F), are months with the coldest seawater in Jayapura.
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is perceived as agreeably warm, making all water activities enjoyable without the risk of discomfort over lengthy durations.

Daylight

In August, the average length of the day is 12h and 2min.
On the first day of the month, sunrise is at 05:43 and sunset at 17:43. On the last day of August, sunrise is at 05:35 and sunset at 17:39 WIT.

Sunshine

The average sunshine in August is 8h.

UV index

The months with the lowest UV index in Jayapura are January, February, June through August and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heed this! UV intensity is much stronger when reflected off sand and water.