Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
August's transformation into September witnesses an average high-temperature of a still warm 28.7°C (83.7°F), noting a minor change from the preceding month. Nighttime temperature dips to a mean of 21.4°C (70.5°F) during September.Heat index
The heat index value for September is estimated at a hot 34°C (93.2°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
September and October, with an average relative humidity of 80%, are the least humid months.Rainfall
In Bumijo, in September, during 17.8 rainfall days, 52mm (2.05") of precipitation is typically accumulated. In Bumijo, during the entire year, the rain falls for 294.6 days and collects up to 1749mm (68.86") of precipitation.Daylight
The average length of the day in September 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 Bumijo, the average sunshine in September is 8.6h.UV index
The months with the lowest UV index are January, April through September, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 during September leads to these advisories:
Take precautions against overexposure. Protection against sun damage is needed. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What are the least humid months?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Bumijo have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
When is the lowest UV index?
What is the UV index intensity in September?
Average temperature in September
Bumijo, Indonesia
- Average high temperature in September: 28.7°C
The warmest month (with the highest average high temperature) is October (29.3°C).
The month with the lowest average high temperature is July (27.7°C).
- Average low temperature in September: 21.4°C
The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).
Average pressure in September
Bumijo, Indonesia
- Average pressure in September: 1011.8mbar
The months with the highest atmospheric pressure are August and September (1011.8mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Bumijo, Indonesia
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is August (11.6km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).
Average humidity in September
Bumijo, Indonesia
- Average humidity in September: 80%
The months with the highest relative humidity are May and June (84%).
The months with the lowest relative humidity are September and October (80%).
Average rainfall in September
Bumijo, Indonesia
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is March (236mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days in September
Bumijo, Indonesia
- Average rainfall days in September: 17.8 days
The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.8 days).
Average daylight in September /
Average sunshine in September
Bumijo, Indonesia
- Average daylight in September: 12h and 1min
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: 8h and 4min
The month with the most sunshine is February (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in September
Bumijo, Indonesia
- Average sunshine days in September: 7.3 days
The month with the most sunshine days is August (11.1 days).
The months with the least sunshine days are January and February (0.4 days).
Average UV index in September
Bumijo, Indonesia
- Average UV index in September: 6
The months with the highest UV index are February, March and October (UV index 7).
The months with the lowest UV index are January, April, May, June, July, August, September, November and December (UV index 6).
Average cloud cover in September
Bumijo, Indonesia
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility in September
Bumijo, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
