Kastav Weather in September

September in Kastav brings pleasant temperatures, with highs of 21°C (70°F) and nights dropping to 13°C (55°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.

Rainfall in Kastav in September

As part of the rainy season, Kastav sees around 13 days of rain in September, with an average of 205 mm (8.1 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.

Temperature in Kastav in September

September in Kastav sees highs of 21°C (70°F) and lows of 13°C (55°F) overnight. Conditions are often most pleasant around the middle of the day. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Kastav in September

Expect sunny days throughout the month, with an estimated 202 hours of sunshine. Despite being the rainy season, it could still be a nice time to visit. Rain often arrives later in the day, keeping most of the days sunny.

Average water temperature in September

With water at 24°C (75°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.

If you prefer dry days with pleasant temperatures, May, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.