Weather in September
September, the first month of the autumn in Minamidaitōjima, is still a tropical month, with temperature in the range of an average low of 24.1°C (75.4°F) and an average high of 30.5°C (86.9°F).
Heat index values are typically calculated for conditions of shade and a light breeze. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
On the first day of the month, sunrise is at 05:55 and sunset at 18:34. On the last day of September, in Minamidaitōjima, sunrise is at 06:06 and sunset at 18:02 JST.
[Resources]Temperature
September's weather displays an average high-temperature of a still tropical 30.5°C (86.9°F), slightly varied from August's 30.9°C (87.6°F). During September, Minamidaitōjima records an average temperature of 24.1°C (75.4°F) at night.Heat index
September's heat index is calculated to be a scorching 40°C (104°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The average relative humidity in September in Minamidaitōjima is 81%.Rainfall
During September, Minamidaitōjima regularly aggregates up to 121mm (4.76") of precipitation. Throughout the year, 1629mm (64.13") of rain is accumulated.Daylight
In Minamidaitōjima, the average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 05:55 and sunset at 18:34. On the last day of September, in Minamidaitōjima, sunrise is at 06:06 and sunset at 18:02 JST.
Sunshine
In Minamidaitōjima, the average sunshine in September is 7.6h.Frequently asked questions
How hot does it get in Minamidaitōjima in September?
In Minamidaitōjima, 30.5°C (86.9°F) is the average high-temperature and 24.1°C (75.4°F) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in September is calculated to be 40°C (104°F).
What is the average humidity in September in Minamidaitōjima?
In September, the average relative humidity in Minamidaitōjima, Japan, is 81%.
How much does it rain in Minamidaitōjima in September?
Throughout September, in Minamidaitōjima, Japan, 121mm (4.76") of precipitation is accumulated.
What is the average length of the day in September in Minamidaitōjima?
In Minamidaitōjima, Japan, the average day length in September is 12h and 19min.
What time are sunrise and sunset in September in Minamidaitōjima?
On the first day of September in Minamidaitōjima, sunrise is at 05:55 and sunset at 18:34. On the last day of the month, sunrise is at 06:06 and sunset at 18:02 JST.
How many hours of sunshine does Minamidaitōjima have in September?
In September, the average sunshine duration in Minamidaitōjima is 7.6h.
Average temperature in September
Minamidaitōjima, Japan
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is July (31.2°C).
The month with the lowest average high temperature is January (20.1°C).
- Average low temperature in September: 24.1°C
The month with the highest average low temperature is July (25.5°C).
The coldest month (with the lowest average low temperature) is January (13.7°C).
Average humidity in September
Minamidaitōjima, Japan
- Average humidity in September: 81%
The month with the highest relative humidity is June (87%).
The months with the lowest relative humidity are January and December (70%).
Average rainfall in September
Minamidaitōjima, Japan
- Average rainfall in September: 120.7mm
The wettest month (with the highest rainfall) is June (207.2mm).
The driest month (with the least rainfall) is February (80.9mm).
Average daylight in September /
Average sunshine in September
Minamidaitōjima, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Minamidaitōjima, Japan
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