December weather forecast
Ubud, Indonesia

December brings the year to a close with the peak of the monsoon, recording a rainfall of 147mm (5.79"). The days become shorter, creating a relaxed and chill ambiance all around Ubud. The slight dip in temperature ensures a comfortable and pleasurable holiday season. With the wind speeds at 6.6km/h (4.1mph) and atmospheric pressure down to 1008.4mb, December allows for a calm and serene end to the year. Despite the onset of monsoons, the UV index remains steady at 7, continuing the need for sun protection.

Temperature

November's transformation into December witnesses an average high-temperature of a still warm 28.7°C (83.7°F) in Ubud, noting a minor change from the preceding month. Ubud's nights in December maintain a consistent average of 23.9°C (75°F), demonstrating a minimal differential from its daytime temperature.

Heat index

December's average heat index is calculated to be a torrid 35°C (95°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In December, the average relative humidity is 83%.

Rainfall

December is the month with the most rainfall in Ubud, Indonesia. Rain falls for 26.4 days and accumulates 147mm (5.79") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:50 and sunset at 18:25. On the last day of December, in Ubud, Indonesia, sunrise is at 06:03 and sunset at 18:40 WITA.

Sunshine

In December, the average sunshine in Ubud is 8.5h.

UV index

February through April, October 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 unprotected exposure to Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.