September weather forecastSumotuwo, Indonesia

Weather in September

The first month of the spring, September, is also a hot month in Sumotuwo, Indonesia, with an average temperature varying between 33.9°C (93°F) and 22.5°C (72.5°F).

Temperature

The beginning of September records an average high-temperature of a still hot 33.9°C (93°F), marking a negligible difference from August's 32.3°C (90.1°F). In September, the temperature in Sumotuwo drops to an average of 22.5°C (72.5°F) at night.

Heat index

The heat index value for September is appraised at an extremely hot 43°C (109.4°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

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

Rainfall

In Sumotuwo, Indonesia, in September, it is raining for 5.4 days, with typically 11mm (0.43") of accumulated precipitation. In Sumotuwo, during the entire year, the rain falls for 218.3 days and collects up to 1409mm (55.47") of precipitation.

Daylight

In Sumotuwo, the average length of the day in September is 12h and 4min.
On the first day of September, sunrise is at 05:30 and sunset at 17:29. On the last day of the month, sunrise is at 05:14 and sunset at 17:24 WIB.

Sunshine

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

UV index

The months with the highest UV index are February, April through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.