July weather forecast
Biak, Indonesia

Despite a decrease in rainfall from June to 181mm (7.13"), July is consistent with the previous couple of months in its display of a less rainy, yet characteristically tropical climate. The relative humidity remains high, while average low and high temperatures show small fluctuations typical of a largely uniform tropical climate. Much like the previous months, July has abundant daylight hours and a consistent sea temperature. These factors lend an ideal atmosphere for outdoor activities and beach visits. As July transitions into August, the climate remains relatively steady, with minor variations in humidity and rainfall expected.

Temperature

In Biak, the lowest average temperatures are observed in July, with a high of 29.1°C (84.4°F) and a low of 25.6°C (78.1°F).

Heat index

For July, the heat index is estimated at a very hot 35°C (95°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In July, the average relative humidity in Biak is 79%.

Rainfall

In Biak, in July, it is raining for 28.3 days, with typically 181mm (7.13") of accumulated precipitation. 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: Water activities including swimming and diving at temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed very pleasurable and enjoyable for extended periods, devoid of discomfort.

Daylight

In Biak, the average length of the day in July is 12h and 4min.
On the first day of July, sunrise is at 05:58 and sunset at 18:01. On the last day of the month, sunrise is at 06:00 and sunset at 18:04 WIT.

Sunshine

In Biak, the average sunshine in July is 8.2h.

UV index

The months with the highest UV index are January, March through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 during July leads to these advisories:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Caution! The Sun's UV rays become stronger due to reflections from water and sand.