December weather forecast
Brebes, Indonesia

The first month of the summer, December, is still a warm month in Brebes, Indonesia, with an average temperature fluctuating between 22.1°C (71.8°F) and 28.7°C (83.7°F).

Temperature

The transition from November to December sees average high-temperatures adjusting to a still warm 28.7°C (83.7°F), from a not significantly different 29.1°C (84.4°F). Throughout December, an average nighttime temperature of 22.1°C (71.8°F) is experienced.

Heat index

In December, the heat index is evaluated at a very hot 35°C (95°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. 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 particularly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Brebes, the average relative humidity in December is 84%.

Rainfall

In Brebes, in December, during 29.5 rainfall days, 219mm (8.62") of precipitation is typically accumulated. Throughout the year, there are 290.8 rainfall days, and 2049mm (80.67") of precipitation is accumulated.

Daylight

The month with the longest days in Brebes, Indonesia, is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:18 and sunset at 17:47. On the last day of December, in Brebes, sunrise is at 05:31 and sunset at 18:02 WIB.

Sunshine

The month with the least sunshine in Brebes is December, with an average of 7.1h of sunshine.

UV index

The months with the lowest UV index are January through September, November 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 radiation for average individuals.
Note: The daily maximum UV index of 6 in December interprets into the following advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.