September weather forecast
Banyulegi, Indonesia

September, the first month of the spring in Banyulegi, is still a hot month, with an average temperature varying between 22.5°C (72.5°F) and 33.9°C (93°F).
The ideal sea water temperature of 28.3°C (82.9°F) and only 5.4 rainfall days, with 11mm (0.43") of accumulated rainfall, makes September the best time for swimming and other water activities.

Temperature

As Banyulegi steps into September, the average high-temperature is measured at a still hot 33.9°C (93°F), displaying minor differences from August's 32.3°C (90.1°F). September in Banyulegi sees the temperature falling to a mean low of 22.5°C (72.5°F).

Heat index

For most parts of September, the heat index is estimated at a blisteringly hot 43°C (109.4°F). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.
Records show heat index calculations are tailored for shaded regions and mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

September and October, with an average relative humidity of 62%, are the least humid months in Banyulegi, Indonesia.

Rainfall

In Banyulegi, in September, during 5.4 rainfall days, 11mm (0.43") of precipitation is typically accumulated. Throughout the year, in Banyulegi, there are 218.3 rainfall days, and 1409mm (55.47") of precipitation is accumulated.

Sea temperature

In Banyulegi, Indonesia, the average seawater temperature in September is 28.3°C (82.9°F).
Note: Water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are pleasurable, without feeling uncomfortable even during extended periods.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 05:30 and sunset at 17:29. On the last day of September, sunrise is at 05:15 and sunset at 17:25 WIB.

Sunshine

The months with the most sunshine are August through October, with an average of 9.7h of sunshine.

UV index

February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Enhance your sun protection with tightly woven, yet airy clothing. Be alert! The reflection of water and sand augments UV radiation intensity.