September weather forecastKomatsu, Japan
September
Weather in September
September, the first month of the autumn in Komatsu, is also a moderately hot month, with an average temperature fluctuating between 24.7°C (76.5°F) and 19.9°C (67.8°F).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from 28.5°C (83.3°F) to a still moderately hot 24.7°C (76.5°F). Komatsu's average temperature throughout the nights in September exhibits a minor decrease from daytime highs, stabilizing at a refreshing 19.9°C (67.8°F).Humidity
In Komatsu, the average relative humidity in September is 77%.Rainfall
In Komatsu, during September, the rain falls for 15.5 days and regularly aggregates up to 115mm (4.53") of precipitation. In Komatsu, Japan, during the entire year, the rain falls for 200.1 days and collects up to 1307mm (51.46") of precipitation.Snowfall
In Komatsu, snow does not fall in April through November.Daylight
In September, the average length of the day in Komatsu, Japan, is 12h and 25min.On the first day of the month, sunrise is at 05:25 and sunset at 18:22. On the last day of September, sunrise is at 05:48 and sunset at 17:39 JST.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Heed the precautions - It is counselled to guard against solar damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Komatsu, Japan
- Average high temperature in September: 24.7°C
The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in September: 19.9°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is February (1.7°C).
Average pressure in September
Komatsu, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in September
Komatsu, Japan
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is June (10.2km/h).
Average humidity in September
Komatsu, Japan
- Average humidity in September: 77%
The month with the highest relative humidity is July (82%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in September
Komatsu, Japan
- Average rainfall in September: 115mm
The wettest month (with the highest rainfall) is July (182mm).
The driest month (with the least rainfall) is May (63mm).
Average rainfall days in September
Komatsu, Japan
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is December (23.4 days).
The month with the least rainy days is May (12.1 days).
Average snowfall in September
Komatsu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (203mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Komatsu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Komatsu, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Komatsu, Japan
- Average sunshine days in September: 12 days
The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is December (4.7 days).
Average UV index in September
Komatsu, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Komatsu, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Komatsu, Japan
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, August, September, October and November (10km).
The months with the lowest visibility are January, February, July and December (9km).
