ચૈત્ર તપે ને વૈશાખ વાય, તો વરસ સારું.

caitra tapē nē vaiśākha vāya, tō varasa sāruṁ.

Literally: If Chaitra is hot and Vaishakh blows, then the year is good.
What it means: Hot and windy weather in early summer predicts a favorable monsoon.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.