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* Estimated from typical costs
Best time to visit: May, September, October
| Month | High °C | Low °C | Rain mm | Rainy days |
|---|---|---|---|---|
| Jan | 4.1 | -1.7 | 67 | 7 |
| Feb | 7.0 | -1.2 | 84 | 7 |
| Mar | 12.3 | 2.4 | 83 | 8 |
| Apr | 17.2 | 6.3 | 97 | 10 |
| May | 21.8 | 10.6 | 114 | 11 |
| Jun | 25.8 | 14.4 | 125 | 10 |
| Jul | 27.9 | 16.0 | 122 | 9 |
| Aug | 27.6 | 15.9 | 124 | 9 |
| Sep | 21.8 | 11.7 | 160 | 9 |
| Oct | 16.1 | 7.9 | 150 | 9 |
| Nov | 9.6 | 3.9 | 138 | 10 |
| Dec | 4.2 | -0.9 | 104 | 9 |
Averages for 1991–2020, not a forecast. Source: WMO climate normals (Ljubljana Bezigrad, 41 km from Postojna).
May, September and October are usually the best months to visit Postojna. Average daytime highs range from about 4°C in January to 28°C in July.
Plan from about US$51 a day on a backpacker budget to around US$109 for a typical visitor, covering accommodation, meals and local transport. These are estimates and vary by season.
Public transport includes bus and is rated good. Walkability scores 75/100.
The nearest airport is Ljubljana Jože Pučnik Airport, about 60 km away. Transfer options include train, taxi and bus.
Overall safety is rated high. Areas generally considered safe include City center and Nearby parks. Check official travel advice before you go.
4G coverage is provided by Telekom Slovenije and A1 Slovenia, rated good. Plan for about 1 GB a day for maps, messaging and social media. A Slovenia travel eSIM lets you get online on arrival without buying a local SIM.
Tap water is generally considered drinkable. If in doubt, follow local advice or choose bottled water.
The information in this guide is intended for general travel planning purposes only and may change without notice. While every effort has been made to ensure accuracy, Graba SIM does not guarantee the completeness, reliability, or timeliness of the content. Travellers should verify entry requirements, local laws, health advice and services with official sources before and during their trip. Graba SIM is not responsible for any loss, injury, or inconvenience arising from reliance on the information provided. Always check with relevant government and health authorities for the most up-to-date travel requirements.
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