December weather forecast
Manado, Indonesia

December concludes the year in Manado with a decrease in temperature and an upswing of rainfall marking a return to the city's wet season. There is a noticeable increase in cloud cover to about 43%, providing the city with relatively shady skies. The wind speed, however, experiences an increase compared to the preceding months. As the year winds down, residents and visitors alike adapt to the increasingly wetter climate.

Temperature

December notes an average high-temperature of a still warm 28.8°C (83.8°F), subtly differing from November's 29.6°C (85.3°F). Manado in December observes a slight diminution in temperature from daily highs, recording a low-temperature average of 24.5°C (76.1°F).

Heat index

The heat index for December is appraised at a torrid 35°C (95°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Manado, the average relative humidity in December is 82%.

Rainfall

In Manado, in December, during 25.8 rainfall days, 121mm (4.76") of precipitation is typically accumulated. Throughout the year, in Manado, there are 292.1 rainfall days, and 1415mm (55.71") of precipitation is accumulated.

Sea temperature

In Manado, in December, the average water temperature is 29.3°C (84.7°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

With an average of 12h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 05:28 and sunset at 17:31. On the last day of the month, sunrise is at 05:42 and sunset at 17:44 WITA.

Sunshine

The average sunshine in December in Manado is 8.1h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 during December translates into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Caution! Sand and water reflections can notably increase the UV radiation intensity.