| < September >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Iwamizawa in September is very mild at 16.3 °C (61.34 °F).
- Afternoons can be really warm with average high temperatures reaching 21.6 °C (70.9 °F).
- Overnight temperatures are generally quite mild with an average low of 11.6 °C (52.9 °F).
- In September the variation/ range of daily mean temperatures is 10 °C (18 °F).
- The weather in September is far from dry. Some 131.4mm (5.2in) of liquid falls.
- The shortest day is 11:43 long and the longest day is 13:10 long with an average length of 12:26.
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Weather Trend Graph for September in Iwamizawa, Japan
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