From Longman Dictionary of Contemporary Englishoffshore wind/current etcoffshore wind/current etcHEMa wind etc that is blowing or moving away from the land OPP onshore → offshore
Examples from the Corpus
offshore wind/current etc• At the moment, only inshore wind farms have been erected but there is great potential in offshore wind.• This is an essential skill in gusty offshore winds.• The government has responded by planning offshore wind farms on the Ijsselmeer.• When sailing in offshore winds, however, this rule is more often than not proved right, particularly in coastal bays.• Large swell waves may be present with an absolutely calm sea or even with light offshore winds in the opposite direction.• Steady offshore winds keep blowing the water westward where it becomes heated.• You should never sail in an offshore wind, particularly not alone.• Avoid strong tides, offshore winds, poor visibility or sailing in the dark. 