September weather forecast
Sidorejo Lor, Indonesia

September, the first month of the spring in Sidorejo Lor, is a tropical month, with an average temperature varying between 21°C (69.8°F) and 30.4°C (86.7°F).

Temperature

September's arrival brings an average high-temperature of a hot 30.4°C (86.7°F), demonstrating subtle variation from the preceding month. Throughout the month of September, Sidorejo Lor witnesses an average low-temperature of 21°C (69.8°F).

Heat index

September's mean heat index is evaluated at a very hot 37°C (98.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the lowest humidity in Sidorejo Lor are September and October, with an average relative humidity of 75%.

Rainfall

In Sidorejo Lor, Indonesia, in September, during 15.2 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, in Sidorejo Lor, there are 289.6 rainfall days, and 2594mm (102.13") of precipitation is accumulated.

Daylight

In Sidorejo Lor, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:38 and sunset at 17:37. On the last day of September, in Sidorejo Lor, sunrise is at 05:22 and sunset at 17:32 WIB.

Sunshine

The months with the most sunshine are August and September, with an average of 9.2h of sunshine.

UV index

With an average maximum UV index of 7, September is the month with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.