September weather forecastCiantra, Indonesia
September
Weather in September
The first month of the spring, September, is still a tropical month in Ciantra, Indonesia, with an average temperature varying between 31.6°C (88.9°F) and 24.9°C (76.8°F).Temperature
Ciantra, Indonesia, commences September with an average high-temperature of a still tropical 31.6°C (88.9°F), maintaining a close resemblance to the previous month. Ciantra experiences an average low-temperature of 24.9°C (76.8°F) in the month of September.Heat index
The heat index value for September is appraised at a sweltering 38°C (100.4°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 are particularly relevant to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The months with the lowest humidity in Ciantra are September and October, with an average relative humidity of 67%.Rainfall
In Ciantra, in September, it is raining for 13.3 days, with typically 44mm (1.73") of accumulated precipitation. In Ciantra, Indonesia, during the entire year, the rain falls for 269.9 days and collects up to 1520mm (59.84") of precipitation.Daylight
In Ciantra, Indonesia, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:51 and sunset at 17:51. On the last day of the month, sunrise is at 05:36 and sunset at 17:46 WIB.
Sunshine
In September, the average sunshine is 9.7h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Ciantra, Indonesia. The months with the lowest UV index in Ciantra are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 7 during September translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ciantra, Indonesia
- Average high temperature in September: 31.6°C
The warmest month (with the highest average high temperature) is October (32°C).
The month with the lowest average high temperature is February (29.6°C).
- Average low temperature in September: 24.9°C
The month with the highest average low temperature is November (26.4°C).
The coldest months (with the lowest average low temperature) are July and August (24.3°C).
Average pressure in September
Ciantra, Indonesia
- Average pressure in September: 1011.1mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Ciantra, Indonesia
- Average wind speed in September: 9.5km/h
The windiest month (with the highest average wind speed) is January (12.6km/h).
The calmest month (with the lowest average wind speed) is November (8km/h).
Average humidity in September
Ciantra, Indonesia
- Average humidity in September: 67%
The month with the highest relative humidity is February (77%).
The months with the lowest relative humidity are September and October (67%).
Average rainfall in September
Ciantra, Indonesia
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is March (215mm).
The driest month (with the least rainfall) is August (31mm).
Average rainfall days in September
Ciantra, Indonesia
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is March (29.2 days).
The month with the least rainy days is August (11.3 days).
Average daylight in September /
Average sunshine in September
Ciantra, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is March (Average sunshine: 10h and 0min).
The month with the least sunshine is July (Average sunshine: 7h and 24min).
Average sunshine days in September
Ciantra, Indonesia
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is February (0.7 days).
Average UV index in September
Ciantra, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Ciantra, Indonesia
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Ciantra, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March and April (9km).





