AbstractThe diurnal variation of precipitation in Sweden is studied with the aid of (a) records from 39 stations which have performed measurements in the morning and evening, (b) records from three pluviograph stations. Mainly the“classical”types of the diurnal variation occur, viz. in summer most of the precipitation falls during the day over land and during the night over the sea and in winter the difference between day and night precipitation is less, often with a night excess over the land. An important exception is the north-western mountain range, where a marked day maximum occurs during winter. This may be due to the proximity to the Atlantic.