Best Time to Hike JK12
Month-by-month temperatures and rainfall for JK12, Slovenia, based on 2-year climate normals.
Month-by-month weather on JK12
| Month | Avg high | Avg low | Rainfall | Rainy days |
|---|---|---|---|---|
| January | -2.2°C / 28°F | -8.4°C / 17°F | 219 mm | 12 |
| February | -0.4°C / 31°F | -6.4°C / 20°F | 168 mm | 11 |
| March | 1.4°C / 35°F | -4.9°C / 23°F | 259 mm | 18 |
| April | 5.8°C / 42°F | -2.4°C / 28°F | 187 mm | 14 |
| May | 8.9°C / 48°F | 1.6°C / 35°F | 242 mm | 25 |
| June | 15.4°C / 60°F | 7.6°C / 46°F | 117 mm | 18 |
| July | 16.5°C / 62°F | 8.8°C / 48°F | 126 mm | 19 |
| August | 17.7°C / 64°F | 9.6°C / 49°F | 76 mm | 16 |
| September | 11.6°C / 53°F | 5°C / 41°F | 279 mm | 19 |
| October | 7.1°C / 45°F | 0.5°C / 33°F | 348 mm | 15 |
| November | 2.2°C / 36°F | -4.8°C / 23°F | 141 mm | 9 |
| December | -0.4°C / 31°F | -6.2°C / 21°F | 47 mm | 6 |
Highlighted rows are the recommended hiking window. Climate normals via Open-Meteo (2-year average). Mountain weather varies — always check a live forecast before you set off.
The best months to hike JK12 are August. Expect daytime highs around 18°C (64°F) and nights near 10°C (50°F).
Pack flexible layers and a reliable rain shell — conditions can shift quickly in the mountains.