Ankaran Weather in September
September in Ankaran brings high temperatures around 23°C (73°F) during the day, dropping to 16°C (61°F) at night, with quite a bit of rainfall expected, averaging around 162 mm (6.4 in) for the month.
Rainfall in Ankaran in September
Looking at the last 30 years, the data shows about 11 days with rain, averaging 162 mm (6.4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Ankaran in September
Daytime temperatures in Ankaran reach 23°C (73°F) in September, dropping to 16°C (61°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Ankaran in September
Expect a lot of sunshine this month, with about 211 hours of sun. These sunny conditions add to the overall experience.
Average water temperature in September
The water is 22°C (72°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.Should you favor a climate that's both dry and comfortably warm, June, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Slovenia, check out our Ankaran's climate page.
Ankaran Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
23°C (73°F)
Water Temperature
22°C (72°F) *
Chance of Rain
36%
Precipitation
162 mm (6.4 in)
Rainy days
11 days
Humidity
67% *
Sunshine
211 hours *
Percentage Sunshine
54% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ankaran typically drop from around 26°C (79°F) at the start of September to approximately 22°C (72°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 17°C (63°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Ankaran in September
Browse day-by-day weather records for Ankaran spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ankaran historical weather extremes in September
Based on 49 years of weather observations in Ankaran between 1976 and 2025, these are the recorded extremes.
- Ankaran recorded its highest September temperature of 35°C (95°F) on September 23, 1985.
- The lowest daytime temperature in September was 11°C (52°F), recorded on September 18, 1977.
- The lowest overnight temperature recorded in September was 4°C (39°F) (September 29, 1977).
Best Places in Slovenia in September
Find out more about the weather in Slovenia and which places have the best travel conditions in this month. See all of Slovenia in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Ankaran in September
For Ankaran 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. Also bring a poncho, it will rain a lot! Waterproof everything you can. The water temperature sits at about 22°C (72°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Ankaran in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Slovenia, check out our Ankaran's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Ankaran climate overview or explore weather in Slovenia.
