Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
Dew in a dream indicates sustenance, blessing, and good speech. For the sick, it is healing, and for the worried, relief.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Dew indicates familiarity and love. Whoever sees dew on crops, it indicates fertility and prosperity.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Dew is interpreted as goodness and benefit. Walking on it indicates striving for a blessed matter.