December weather forecast
Sattahip, Thailand

The first month of the winter, December, is also a hot month in Sattahip, Thailand, with an average temperature ranging between min 20.6°C (69.1°F) and max 32.3°C (90.1°F).
An excellent water temperature of 28.2°C (82.8°F) and only 2 rainfall days, with 11mm (0.43") of accumulated rainfall, makes December a prime for swimming and other water activities.

Temperature

The initiation of December records an average high-temperature of a still hot 32.3°C (90.1°F), displaying a near consistency with the previous month. An average low-temperature of 20.6°C (69.1°F) is observed during December nights in Sattahip.

Heat index

During December, the heat index is computed to be a blisteringly hot 41°C (105.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

With an average relative humidity of 69%, December is the least humid month.

Rainfall

December is the month with the least rainfall. Rain falls for 2 days and accumulates 11mm (0.43") of precipitation.

Sea temperature

In Sattahip, in December, the average water temperature is 28.2°C (82.8°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

Daylight

With an average of 11h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:22 and sunset at 17:48. On the last day of December, sunrise is at 06:37 and sunset at 18:01 +07.