How is the weather in basel in april?
 The average temperature in Basel in April is a little cool at 9 °C or 48.2 °F, Afternoons can be very mild with average high temperatures reaching 16 °C, Overnight temperatures are generally cool with an average low of 4 °C, April is slightly dry with rain occasionally, Only 55mm  of water is dropped across an average of 12 days. 