September weather forecast
Tuban, Indonesia

September, the first month of the spring in Tuban, is also a moderately hot month, with temperature in the range of an average low of 21.3°C (70.3°F) and an average high of 29.4°C (84.9°F).

Temperature

Tuban's shift into September is marked by a subtle change to a still moderately hot 29.4°C (84.9°F) from August's 28.6°C (83.5°F) in temperature. An average low-temperature of 21.3°C (70.3°F) is expected during September.

Heat index

For September, the heat index is appraised at a sweltering 36°C (96.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Tuban, Indonesia, the average relative humidity in September is 79%.

Rainfall

In Tuban, in September, during 11.5 rainfall days, 16mm (0.63") of precipitation is typically accumulated. In Tuban, during the entire year, the rain falls for 203.9 days and collects up to 638mm (25.12") of precipitation.

Sea temperature

In Tuban, the average seawater temperature in September is 28.4°C (83.1°F).
Note: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In Tuban, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:32 and sunset at 17:31. On the last day of September, sunrise is at 05:16 and sunset at 17:26 WIB.

Sunshine

In September, the average sunshine in Tuban is 8.8h.

UV index

The months with the highest UV index in Tuban are February, April, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Attention! UV radiation is markedly stronger with water and sand reflections.