Kastav Weather in May

During May, Kastav experiences pleasant daytime temperatures of 20°C (68°F) and cooler nights around 11°C (52°F). Expect quite a bit of rainfall. Around 141 mm (5.6 in) is typical.

Rainfall in Kastav in May

Looking at the last 30 years, the data shows about 16 days with rain, averaging 141 mm (5.6 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Kastav in May

In May, expect pleasant temperatures in Kastav, with highs of 20°C (68°F) and lows of 11°C (52°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Kastav in May

The days are predominantly sunny, with an estimated total of around 234 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Average water temperature in May

With water at 18°C (64°F), swimming is comfortable for most people. It feels refreshing rather than cold, though it depends a bit on personal preference.

If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Kastav.