Ready-made plans

Custom planning is temporarily unavailable for this route. Ready-made plans are still available.

Best Time for Slovenia's Karst & Coast

Last updated: 2026-09-24

Preferred months for this journey: May, June, July, August, September, October. Check the seasonal notes before choosing your dates.

Cave temperatures never change but the queues do — shoulder season halves them; the saltpans harvest through summer and Piran's seafood keeps its local prices.
Slovenia's forty kilometres of coast work hard in high summer — sleep in Piran itself and the day-trip tide recedes by evening.

Month	Low	High	Rain	Daylight
January	−2.7°C	3.4°C	63 mm	8.9 h	❄
February	−2.3°C	4.9°C	75 mm	10.1 h	❄
March	0.8°C	9.6°C	71 mm	11.6 h	❄
April	5.1°C	14.8°C	72 mm	13.3 h
May	9.6°C	19.3°C	94 mm	14.7 h
June	14.0°C	23.5°C	83 mm	15.5 h
July	16.1°C	26.0°C	75 mm	15.2 h
August	15.6°C	26.0°C	89 mm	13.9 h
September	11.0°C	20.6°C	116 mm	12.3 h
October	6.9°C	15.3°C	103 mm	10.7 h
November	3.2°C	9.6°C	114 mm	9.2 h
December	−1.3°C	4.8°C	89 mm	8.5 h	❄