Postojna Weather in October
In Postojna, October brings moderate daytime temperatures around 15°C (59°F), with nights cooling to 7°C (45°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Postojna in October
Postojna is in the rainy season in October, with rain on around 13 days and an average of 173 mm (6.8 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Postojna in October
Daytime highs in Postojna in October reach 15°C (59°F), with nights around 7°C (45°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 7°C (45°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Postojna in October
The month brings about 167 hours of sunlight, offering a comfortable mix of sun and rainy moments.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July and August typically offer the best weather for Postojna.
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 Postojna's climate page.
Postojna Temperature in October
Min Temperature
7°C (45°F)
Max Temperature
15°C (59°F)
Chance of Rain
44%
Precipitation
173 mm (6.8 in)
Rainy days
13 days
Humidity
69% *
Sunshine
167 hours *
Percentage Sunshine
52% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Postojna typically drop from around 20°C (68°F) at the start of October to approximately 16°C (61°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 11°C (52°F).
Average temperatures in October
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 October
Historical weather for Postojna in October
Browse day-by-day weather records for Postojna spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Postojna historical weather extremes in October
Based on 49 years of weather observations in Postojna between 1976 and 2025, these are the recorded extremes.
- Postojna recorded its highest October temperature of 27°C (81°F) on October 2, 1985.
- The coldest October day was on October 31, 2019, with a maximum of 5°C (41°F).
- Nighttime temperatures dropped to -8°C (18°F) on October 30, 1997, marking the coldest October night on record.
Best Places in Slovenia in October
Find out more about the weather in Slovenia and which places have the best travel conditions in this month. See all of Slovenia in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Postojna in October
The weather can be unpredictable in October, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Postojna in October
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 Postojna's climate page.
Temperature Rainfall Sunshine Humidity
See the full Postojna climate overview or explore weather in Slovenia.
