December weather forecast
Tuban, Indonesia

The first month of the summer, December, is also a moderately hot month in Tuban, Indonesia, with an average temperature fluctuating between 29.8°C (85.6°F) and 23.5°C (74.3°F).

Temperature

Tuban measures an average high-temperature of a moderately hot 29.8°C (85.6°F) in December, nearly consistent with the preceding month. Throughout December, Tuban experiences a low-temperature average of 23.5°C (74.3°F).

Heat index

The average heat index in December is appraised at a very hot 37°C (98.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Tuban, the average relative humidity in December is 81%.

Rainfall

In Tuban, in December, during 21.2 rainfall days, 73mm (2.87") of precipitation is typically accumulated. In Tuban, during the entire year, the rain falls for 203.9 days and collects up to 638mm (25.12") of precipitation.

Sea temperature

With an average sea temperature of 30.3°C (86.5°F), December is the month with the warmest seawater in Tuban.
Note: Temperatures exceeding 30°C (86°F) can compromise the refreshing quality of water activities.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:06 and sunset at 17:35. On the last day of the month, sunrise is at 05:19 and sunset at 17:50 WIB.

Sunshine

In Tuban, Indonesia, the average sunshine in December is 7.6h.

UV index

February, April, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 during December translates into the following directions:
Guard oneself from overexposure. Defence against sun 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. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Attention! The combination of sand and water reflections enhances UV ray intensity.