September weather forecast
Jepara, Indonesia

September, the first month of the spring in Jepara, is also a hot month, with an average temperature varying between 30.4°C (86.7°F) and 25.4°C (77.7°F).

Temperature

With the transition into September, Jepara notes an average high-temperature of a still tropical 30.4°C (86.7°F), closely resembling August. Jepara registers an average low-temperature of 25.4°C (77.7°F) throughout September, a modest decrease from its daytime highs.

Heat index

The heat index for September is computed to be a fiery hot 36°C (96.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The months with the lowest humidity in Jepara are September and October, with an average relative humidity of 70%.

Rainfall

In September, in Jepara, the rain falls for 12.1 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, there are 245.1 rainfall days, and 1236mm (48.66") of precipitation is accumulated.

Daylight

The average length of the day in September in Jepara, Indonesia, is 12h and 4min.
On the first day of September, sunrise is at 05:37 and sunset at 17:36. On the last day of the month, sunrise is at 05:22 and sunset at 17:32 WIB.

Sunshine

August and September, with an average of 9.8h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: In September, the UV index of 7 transforms into the following advice:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.