September weather forecastKomaki, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Komaki, Japan, with temperature in the range of an average low of 19.4°C (66.9°F) and an average high of 27.5°C (81.5°F).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a tropical 32.3°C (90.1°F) to a moderately hot 27.5°C (81.5°F). During the month of September, an average temperature of 19.4°C (66.9°F) is noted during the nights in Komaki.Heat index
The heat index for September is estimated at a tropical 30°C (86°F). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The average relative humidity in September is 75%.Rainfall
In Komaki, Japan, during September, the rain falls for 12.8 days and regularly aggregates up to 80mm (3.15") of precipitation. Throughout the year, there are 128.6 rainfall days, and 730mm (28.74") of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:24 and sunset at 18:19. On the last day of September, sunrise is at 05:46 and sunset at 17:38 JST.
Sunshine
In Komaki, the average sunshine in September is 8.8h.UV index
In Komaki, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 in September translates into this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Komaki, Japan
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is August (32.3°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in September: 19.4°C
The month with the highest average low temperature is August (23.6°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Komaki, Japan
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is November (1019.2mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Komaki, Japan
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is March (9.2km/h).
The calmest month (with the lowest average wind speed) is July (7km/h).
Average humidity in September
Komaki, Japan
- Average humidity in September: 75%
The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Komaki, Japan
- Average rainfall in September: 80mm
The wettest month (with the highest rainfall) is July (133mm).
The driest month (with the least rainfall) is January (17mm).
Average rainfall days in September
Komaki, Japan
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Komaki, Japan
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Komaki, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Komaki, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Komaki, Japan
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Komaki, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Komaki, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is July (Cloud cover 45).
The month with the least cloud cover is November (Cloud cover 31).
Average visibility in September
Komaki, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
