September weather forecastTonami, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Tonami, Japan, with an average temperature ranging between min 16.9°C (62.4°F) and max 24.4°C (75.9°F).Temperature
With the onset of September, Tonami experiences a modest temperature adjustment, with the average high-temperature gently receding from 29.3°C (84.7°F) in August to a still moderately hot 24.4°C (75.9°F). An average low-temperature of 16.9°C (62.4°F) is noted during the nights in September in Tonami.Humidity
The average relative humidity in September in Tonami is 80%.Rainfall
In Tonami, in September, it is raining for 17.1 days, with typically 135mm (5.31") of accumulated precipitation. In Tonami, during the entire year, the rain falls for 191 days and collects up to 1371mm (53.98") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Tonami, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 05:23 and sunset at 18:20. On the last day of September, in Tonami, Japan, sunrise is at 05:46 and sunset at 17:37 JST.
Sunshine
The average sunshine in September is 8.3h.UV index
In Tonami, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The solar radiation around mid-day is intense; avoid the Sun and stay safe. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tonami, Japan
- Average high temperature in September: 24.4°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 (3°C).
- Average low temperature in September: 16.9°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).
Average pressure in September
Tonami, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is February (1019.5mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Tonami, Japan
- Average wind speed in September: 7.5km/h
The windiest month (with the highest average wind speed) is December (10.7km/h).
The calmest months (with the lowest average wind speed) are June and August (6.9km/h).
Average humidity in September
Tonami, Japan
- Average humidity in September: 80%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Tonami, Japan
- Average rainfall in September: 135mm
The wettest month (with the highest rainfall) is July (177mm).
The driest month (with the least rainfall) is May (77mm).
Average rainfall days in September
Tonami, Japan
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in September
Tonami, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (440mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Tonami, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Tonami, 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 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Tonami, Japan
- Average sunshine days in September: 10.8 days
The month with the most sunshine days is May (16.7 days).
The month with the least sunshine days is January (7.1 days).
Average UV index in September
Tonami, Japan
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Tonami, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 34).
Average visibility in September
Tonami, Japan
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, August, September, October, November and December (9km).
The months with the lowest visibility are January, February and July (8km).
