December weather forecast
Semampir, Indonesia

December, the first month of the summer in Semampir, is also a moderately hot month, with an average temperature ranging between max 29°C (84.2°F) and min 23°C (73.4°F).

Temperature

Semampir records a slight change with December's average high-temperatures adjusting to a still warm 29°C (84.2°F) from November's 29.3°C (84.7°F). During December, the temperature tends to dip to an average of 23°C (73.4°F) at night.

Heat index

For most parts of December, the heat index is appraised at a very hot 35°C (95°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. 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 important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in December is 82%.

Rainfall

In Semampir, during December, the rain falls for 29.8 days and regularly aggregates up to 184mm (7.24") of precipitation. In Semampir, Indonesia, during the entire year, the rain falls for 274.5 days and collects up to 1388mm (54.65") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:02 and sunset at 17:33. On the last day of December, sunrise is at 05:15 and sunset at 17:48 WIB.

Sunshine

In December, the average sunshine is 8h.

UV index

The months with the lowest UV index are January, March, May through September and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 6 during December leads to these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.