Gromača Weather in September

September in Gromača brings high temperatures, with daytime highs of 25°C (77°F) and nights around 17°C (63°F). Quite a bit of rainfall is expected, around 144 mm (5.7 in), so pack an umbrella.

Rainfall in Gromača in September

Based on our climate data of the past 30 years, about 9 days of rain are anticipated, with 144 mm (5.7 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Gromača in September

In September, expect high temperatures in Gromača, with highs of 25°C (77°F) and lows of 17°C (63°F) at night. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 17°C (63°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 Gromača in September

Enjoy a sunny month with about 310 hours of sunshine, the clear skies make Gromača even more beautiful.

Average water temperature in September

The water is 24°C (75°F) this month, warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

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.

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For a detailed overview over the year and the best time to visit Croatia, check out our Gromača's climate page.

Gromača Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 25°C (77°F)  

Water Temperature 24°C (75°F) *  

Chance of Rain 29%  

Precipitation 144 mm (5.7 in)  

Rainy days 9 days  

Humidity 59% *  

Sunshine 310 hours *  

Percentage Sunshine 70% *  

* Data from: Dubrovnik, Croatia (12 KM, 7 Miles).

What to Wear in Gromača in September

For Gromača in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 24°C (75°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Gromača in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Croatia, check out our Gromača's climate page.

More climate data for Gromača

Temperature Rainfall Sunshine Humidity Water Temp

See the full Gromača climate overview or explore weather in Croatia.