ピーカン

noun

clear weather; fine weather; perfect weather

Colloquial term for cloudless, sunny weather; originally filmmaking jargon for ideal outdoor shooting conditions. Often used in casual conversation.

• 明日あしたはピーカンらしいから、海うみに行いこう。

  Tomorrow is supposed to be perfectly clear, so let's go to the beach.

• 今日きょうはピーカンで、雲くもひとつない。

  Today is a cloudless, perfect-weather day.