October weather forecast
Biak, Indonesia

The weather in October exhibits slight changes in comparison to September. Rainfall increases slightly to 128mm (5.04"), but it continues to fall on the lesser side overall, making way for a pleasantly temperate climate. October follows the climatic scheme of September with a slight increase in rain observed. Despite the fluctuations in rainfall, the humidity, temperature range, and sea temperature stay consistent, indicating the region's tropical nature. The welcoming sea temperature stays the course, facilitating a range of water sports and leisure activities.

Temperature

Biak, Indonesia, records a slight change with October's average high-temperatures adjusting to a still moderately hot 29.9°C (85.8°F) from September's 29.2°C (84.6°F). October nights in Biak witness a slight temperature decrease, averaging at a still warm 26.1°C (79°F).

Heat index

During October, the heat index is calculated to be a torrid 37°C (98.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

October is the least humid month in Biak, with an average relative humidity of 77%.

Rainfall

In October, in Biak, the rain falls for 22.8 days. Throughout October, 128mm (5.04") of precipitation is accumulated. In Biak, during the entire year, the rain falls for 323.4 days and collects up to 2132mm (83.94") of precipitation.

Sea temperature

January through October and December, with an average sea temperature of 29°C (84.2°F), are months with the coldest seawater.
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.

Daylight

In Biak, Indonesia, the average length of the day in October is 12h and 8min.
On the first day of October, sunrise is at 05:42 and sunset at 17:49. On the last day of the month, sunrise is at 05:35 and sunset at 17:44 WIT.

Sunshine

In Biak, the average sunshine in October is 8.4h.

UV index

January, March through November, with an average maximum UV index of 7, are months with the highest UV index in Biak. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In October, an average UV index of 7 transforms into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take note! The UV strength of the Sun elevates when reflected off water and sand.