Coming or being from the south: southerly winds. (adjective)
A storm or wind coming from the south.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "southerly" in a sentence
"As of yesterday AM we were experiencing a so called southerly surge, bringing a thick marine layer and good stratus intrusion."
"The winds known as southerly bursters are generally to be expected from"
"We remained nearly an hour beside our beneficent fountain, then took the route for Senegal; that is, a southerly direction, for we did not know exactly where that country lay."