Sistiana Weather in September

Sistiana in September sees high daytime temperatures of 23°C (73°F) and nighttime lows of 16°C (61°F). As part of the rainy season, showers are frequent and often heavy. Budget around 178 mm (7 in) of rainfall for the month.

Rainfall in Sistiana in September

As part of the rainy season, Sistiana sees around 11 days of rain in September, with an average of 178 mm (7 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours.

Temperature in Sistiana in September

Temperatures in Sistiana in September top out at 23°C (73°F) and drop to 16°C (61°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 16°C (61°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 Sistiana in September

Expect sunny days throughout the month, with an estimated 211 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 22°C (72°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.

If you prefer enjoying temperate temperatures and rain-free days, July typically offers 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 Italy, check out our Sistiana's climate page.

Sistiana Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 23°C (73°F)  

Water Temperature 22°C (72°F) *  

Chance of Rain 38%  

Precipitation 178 mm (7 in)  

Rainy days 11 days  

Humidity 67% *  

Sunshine 211 hours *  

Percentage Sunshine 54% *  

* Data from: Triest, Italy (15 KM, 9 Miles).

What to Wear in Sistiana in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Expect water temperatures of around 22°C (72°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Sistiana in September

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

Swimming

7/10

Camping

6/10

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 Italy, check out our Sistiana's climate page.

More climate data for Sistiana

Temperature Rainfall Sunshine Humidity Water Temp

See the full Sistiana climate overview or explore weather in Italy.