好天 (Hó-thiⁿ) (好天) 是 (sī)一 (chi̍t)種 (chióng)穩定 (ún-tēng)的 (ê)大氣 (tāi-khì)狀態 (chōng-thài),一般 (it-poaⁿ)攏 (lóng)是天頂 (thiⁿ-téng)層雲 (chân-hûn)無到 (bô-kàu)30% 个 (ê)好 (hó)天氣 (thiⁿ-khì)。上 (Siōng)有可能 (ū-khó-lêng)出現 (chhut-hiān)好天的大氣狀態是高氣壓 (ko-khì-ap).[1]