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
Weather in September
Temperature
An average high-temperature of a still moderately hot 28.5°C (83.3°F) marks September, exhibiting a close resemblance to the conditions in August. Nighttime in Tonaki, during September, brings an average low of 27°C (80.6°F), a modest reduction from the day's peak.Heat index
The heat index for September is estimated at a tropical 33°C (91.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Note that heat index values are valued for light wind and location in the shade. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In Tonaki, the average relative humidity in September is 78%.Rainfall
In Tonaki, in September, during 19.8 rainfall days, 127mm (5") of precipitation is typically accumulated. In Tonaki, during the entire year, the rain falls for 214.7 days and collects up to 1105mm (43.5") of precipitation.Daylight
In September, the average length of the day is 12h and 19min.On the first day of September, sunrise is at 06:11 and sunset at 18:51. On the last day of the month, sunrise is at 06:23 and sunset at 18:19 JST.
Sunshine
In Tonaki, 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 value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
How hot is September in Tonaki?
What is the average humidity in September in Tonaki?
How much does it rain in Tonaki in September?
What is the average length of the day in September in Tonaki?
What time are sunrise and sunset in September in Tonaki?
How long on average sun shines in September in Tonaki?
What is the month with the highest UV index in Tonaki?
What is the UV index intensity in September in Tonaki?
Average temperature in September
Tonaki, Japan
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (18.8°C).
- Average low temperature in September: 27°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
Tonaki, Japan
- Average pressure in September: 1009.1mbar
The month with the highest atmospheric pressure is January (1021.1mbar).
The month with the lowest atmospheric pressure is August (1006.4mbar).
Average wind speed in September
Tonaki, Japan
- Average wind speed in September: 24.5km/h
The windiest month (with the highest average wind speed) is December (30.9km/h).
The calmest month (with the lowest average wind speed) is May (21.6km/h).
Average humidity in September
Tonaki, Japan
- Average humidity in September: 78%
The month with the highest relative humidity is June (86%).
The months with the lowest relative humidity are January and December (73%).
Average rainfall in September
Tonaki, Japan
- Average rainfall in September: 127mm
The wettest month (with the highest rainfall) is August (153mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days in September
Tonaki, Japan
- Average rainfall days in September: 19.8 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is March (15.7 days).
Average daylight in September /
Average sunshine in September
Tonaki, Japan
- Average daylight in September: 12h and 2min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).
Average sunshine days in September
Tonaki, Japan
- Average sunshine days in September: 6.7 days
The months with the most sunshine days are March and April (11.3 days).
The month with the least sunshine days is September (6.7 days).
Average UV index in September
Tonaki, Japan
- Average UV index in September: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in September
Tonaki, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Tonaki, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Tonaki, Japan
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