The seasonal variations of the sea level are relatively small – the sea level rises up to in summer near the river deltas and lowers in winter. Wind-induced changes are observed all through the year, but are more frequent in autumn when the winds are strong and steady. In general, the sea level rises with northern and lowers with southern winds, but depending on the area, the maximum amplitude is observed for a specific wind direction (e.g. western and north-western in the south-eastern part of the sea). They average amplitudes are 1–2 m and may exceed near Tiksi.