September weather forecastEsu, Japan
September
Weather in September
September, the first month of the autumn in Esu, is also a moderately hot month, with an average temperature fluctuating between 28.7°C (83.7°F) and 27.2°C (81°F).Temperature
The average high-temperature during September registers at a still moderately hot 28.7°C (83.7°F), closely corresponding to the preceding month. A slight dip in temperature to a still warm 27.2°C (81°F) marks the average nights in Esu during September.Heat index
In September, the heat index is estimated at a hot 34°C (93.2°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In Esu, the average relative humidity in September is 79%.Rainfall
In Esu, in September, it is raining for 20.3 days, with typically 144mm (5.67") of accumulated precipitation. Throughout the year, there are 229 rainfall days, and 1437mm (56.57") of precipitation is accumulated.Daylight
In September, the average length of the day in Esu is 12h and 19min.On the first day of September in Esu, sunrise is at 06:08 and sunset at 18:48. On the last day of the month, sunrise is at 06:20 and sunset at 18:16 JST.
Sunshine
In Esu, the average sunshine in September is 8.3h.UV index
June through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 7 in September leads to these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Esu, Japan
- Average high temperature in September: 28.7°C
The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (18.8°C).
- Average low temperature in September: 27.2°C
The month with the highest average low temperature is August (28.2°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in September
Esu, Japan
- Average pressure in September: 1009.1mbar
The month with the highest atmospheric pressure is January (1020.9mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).
Average wind speed in September
Esu, Japan
- Average wind speed in September: 22km/h
The windiest month (with the highest average wind speed) is December (27km/h).
The calmest month (with the lowest average wind speed) is May (19.2km/h).
Average humidity in September
Esu, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is January (72%).
Average rainfall in September
Esu, Japan
- Average rainfall in September: 144mm
The wettest month (with the highest rainfall) is June (205mm).
The driest month (with the least rainfall) is February (61mm).
Average rainfall days in September
Esu, Japan
- Average rainfall days in September: 20.3 days
The month with the highest number of rainy days is January (22.6 days).
The months with the least rainy days are March and November (16.5 days).
Average daylight in September /
Average sunshine in September
Esu, Japan
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Esu, Japan
- Average sunshine days in September: 7.4 days
The month with the most sunshine days is April (11 days).
The month with the least sunshine days is January (5.4 days).
Average UV index in September
Esu, Japan
- Average UV index in September: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Esu, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Esu, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is May (9km).





