September weather forecastTlatar, Indonesia
September
Weather in September
The first month of the spring, September, is still a warm month in Tlatar, Indonesia, with an average temperature ranging between max 29.4°C (84.9°F) and min 20.7°C (69.3°F).Temperature
The start of September sees the average high-temperature at a still warm 29.4°C (84.9°F), showing little difference from August's 28.7°C (83.7°F). In Tlatar, an average low-temperature of 20.7°C (69.3°F) is recorded during September nights.Heat index
Throughout September, the heat index is calculated to be a sweltering 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Heat index determinations are made taking into account the shade and light air movements. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
September and October, with an average relative humidity of 78%, are the least humid months.Rainfall
In Tlatar, in September, during 14.9 rainfall days, 54mm (2.13") of precipitation is typically accumulated. Throughout the year, in Tlatar, there are 289.9 rainfall days, and 2050mm (80.71") of precipitation is accumulated.Daylight
The average length of the day in September in Tlatar is 12h and 4min.On the first day of September, sunrise is at 05:39 and sunset at 17:37. On the last day of the month, sunrise is at 05:23 and sunset at 17:33 WIB.
Sunshine
In Tlatar, Indonesia, the average sunshine in September is 9h.UV index
The months with the lowest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tlatar, Indonesia
- Average high temperature in September: 29.4°C
The warmest month (with the highest average high temperature) is October (30.2°C).
The month with the lowest average high temperature is July (28.1°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is November (22.5°C).
The coldest month (with the lowest average low temperature) is August (20.4°C).
Average pressure in September
Tlatar, Indonesia
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is September (1011.8mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Tlatar, Indonesia
- Average wind speed in September: 9.9km/h
The windiest month (with the highest average wind speed) is August (10km/h).
The calmest month (with the lowest average wind speed) is April (5.9km/h).
Average humidity in September
Tlatar, Indonesia
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, March, April and May (85%).
The months with the lowest relative humidity are September and October (78%).
Average rainfall in September
Tlatar, Indonesia
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is March (291mm).
The driest month (with the least rainfall) is August (27mm).
Average rainfall days in September
Tlatar, Indonesia
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is March (30.5 days).
The month with the least rainy days is August (12.2 days).
Average daylight in September /
Average sunshine in September
Tlatar, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Tlatar, Indonesia
- Average sunshine days in September: 9.9 days
The month with the most sunshine days is August (14.4 days).
The months with the least sunshine days are January, February and March (0.3 days).
Average UV index in September
Tlatar, Indonesia
- Average UV index in September: 6
The month with the highest UV index is October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
Average cloud cover in September
Tlatar, Indonesia
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Tlatar, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are June, July, August, September, October and December (9km).
The months with the lowest visibility are January, February, March, April, May and November (8km).
