weather windown.Oil Industry a brief interval in the year when the weather is calm enough to allow construction, loading, etc., operations to be carried out at sea.
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the world > the earth > weather and the atmosphere > weather > fine weather > [noun] > short spell of
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weather window1974
1974 Petroleum Rev.28 787/1 The weather-window is normally reckoned to last into September.
1983 Sunday Times 6 Mar. 69/4 It's been said that Esso's development of artificial islands has not merely opened the weather window further but ripped it off its hinges.