Summer in Ovada is the driest season, unlike the rest of the Piedmont (where, due to the proximity of the Alps, storms often form). Remaining, even in summer, rather windy, the summer weather in Ovada hardly looks sultry and temperatures only during strong African heat waves exceed 30 °C. In the fall with the return of the Atlantic cyclones the weather is often overcast and rainy, and occasionally the fog appears, although much less than in other areas of Piedmont and the Po Valley.
Summer in Ovada is dry compared to the rest of the Piedmont, which experiences frequent storms due to the Alps' presence. Even during summer, Ovada remains windy with temperatures rarely exceeding 30°C during heat waves. In fall, Atlantic cyclones bring overcast and rainy weather to Ovada, occasionally accompanied by fog, but less than other parts of the Piedmont and Po Valley.