What does upwind mean?
Upwind means toward the direction from which the wind is blowing or, as an adjective, located on that side. A sailor might describe a boat as making an upwind leg, while a hiker could seek shelter on the upwind side of a ridge or building. The term is especially useful where wind direction affects navigation, exposure, scent, smoke, and aircraft movement. Unlike simply saying “against the wind,” upwind often functions as a stable technical label and can also appear in the phrase “upwind of,” meaning on the windward side of something. Although transparent in its meaning, the word rewards close attention: “up” indicates a direction relative to a reference point, while “wind” supplies the source of that direction. In ordinary conversation it is less common than “into the wind,” but in nautical, aviation, and meteorological contexts it is clear, economical, and firmly established.
In the direction from which the wind is blowing; toward the wind's source.
"The launch turned upwind and began crossing the chop."
Common in nautical, aviation, meteorological, and outdoor descriptions; it can contrast with movement in the same direction as the wind.
Situated on the side from which the wind blows or facing into the wind.
"The island provides shelter on its upwind side."
Frequently describes a position, route, slope, or exposed surface in relation to the wind.
Sailing upwind is like walking uphill: progress comes through angled tacks rather than one straight push.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of upwind
Upwind is an English compound formed from up and wind. Its elements descend from Old English upp and Old English wind, with the latter also underlying related forms such as windward, windmill, and windbreak. As a directional compound, upwind has become particularly associated with nautical usage, where positions and courses are regularly described in relation to the wind.
How upwind is actually used
The term is neutral but is especially common in nautical, aviation, meteorological, and outdoor contexts. Its locational sense can indicate exposure to the wind rather than actual movement; for example, the upwind side of a building may be the side where the wind strikes it first.
Easily confused with upwind
Upwind means toward the direction from which the wind comes, whereas downwind means in the direction in which it blows.