August dry and warm, Harvest doth no harm.

A warm, dry August is presented as favorable for the harvest. The proverb links settled weather with the prospect of bringing in crops without weather-related damage.

Its reassurance is conditional: if August has those qualities, the harvest is expected to fare well. It does not promise that every crop will succeed.

Use it when commenting on warm, dry August weather and what it may mean for gathering crops. Its rhyming, old-fashioned phrasing suits a proverbial observation rather than a precise forecast.