November weather forecast
Biak, Indonesia

As November rolls in, Biak encounters 125mm (4.92") rainfall, with a slight decrease seen from October, maintaining the mild phase of the wet season. The climate characteristics remain persistently tropical, with high relative humidity, ample daylight hours, and uniform sea temperature. Despite the slight decrease in sunshine hours, there's still sufficient daylight for outdoor activities. The stable weather pattern from October carries over to November, with only minor deviations noted. As November concludes, a shift towards increased rainfall and fewer sunny days is foreseen.

Temperature

The warmest month is November, with an average high-temperature of 30°C (86°F) and an average low-temperature of 26.4°C (79.5°F).

Heat index

In November, the average heat index is estimated at a very hot 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In November, the average relative humidity is 78%.

Rainfall

The month with the least rainfall is November, when the rain falls for 23.2 days and typically collects 125mm (4.92") of precipitation.

Sea temperature

November is the month with the warmest seawater, with an average sea temperature of 30°C (86°F).
Note: Swimming's cooling effect can be diminished in waters that have temperatures surpassing 30°C (86°F).

Daylight

In November, the average length of the day is 12h and 10min.
On the first day of November, sunrise is at 05:35 and sunset at 17:44. On the last day of the month, sunrise is at 05:39 and sunset at 17:50 WIT.

Sunshine

In November, the average sunshine is 8.3h.

UV index

January, March through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 7 in November translates into the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! Sand and water reflections can notably increase the UV radiation intensity.