| < April >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Karuizawa in April is cool at 6.3 °C (43.34 °F).
- Afternoons can be mild with average high temperatures reaching 13.2 °C (55.8 °F).
- Overnight temperatures are generally slightly cold with an average low of -0.1 °C (31.8 °F).
- The average diurnal temperature range/ variation in April is 13.3 °C (23.9 °F).
- The weather in April is dryish. Just 84.2mm (3.3in) of liquid is released.
- The shortest day is 12:32 long and the longest day is 13:37 long with an average length of 13:05.
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Weather Trend Graph for April in Karuizawa, Japan
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