Waymark

Slovenia travel guide

Best time to visit from the UK, weather, festivals, flights from London and FCDO travel advice.

Lake Bled
Lake Bled. Photo: Canadianhockey91, CC BY-SA 3.0, via Wikimedia Commons
2hflight from London
Eurocurrency
No visafor UK passports
Type C, Fplugs

Emerald lakes, Alpine villages and caves in a pocket-sized country

Don't miss

  1. Lake Bled
  2. Postojna Cave
  3. Ljubljana
Good forMountains & hikingAdventure

Best time to visit Slovenia from the UK

Best value: Mar–May, Sep–Oct. May–Sep for lakes and mountains. Busiest and priciest: Jun–Aug.

-1.2 C-1°J-0.1 C-0°F4 C4°M9 C9°A13.5 C14°M17.8 C18°J19.9 C20°J19.6 C20°A14.5 C14°S9.7 C10°O4.9 C5°N0.1 C0°D
Best valueBusy and pricierQuietAverage temperature in Ljubljana, °C, 2001–2025 (NASA POWER).

Each bar is the average temperature in Ljubljana for that month, and its colour shows the season for visitors: best value (good weather, fewer crowds and lower prices), busiest and priciest, or quiet (off-peak, sometimes because the weather is poorer).

  • Our pick: May and SeptemberThe warmest of the best-value months (14°C), with fewer crowds than peak season.
  • Peak season: Jun–AugUsually 18–20°C. The busiest time, so book flights and rooms early and expect higher prices.
  • Quiet season: Nov–FebAround -1–5°C. The cheapest and least crowded time, but cold, so pack layers.
  • Warmest: July (20°C) · coolest: January (-1°C)A 21°C swing between the warmest and coolest months.
Temperatures as a table
JanFebMarAprMayJunJulAugSepOctNovDec
-1.2-0.14913.517.819.919.614.59.74.90.1

Festivals and events

  • Kurentovanje Feb · Ptuj
  • Ljubljana Festival Jun–Sep · Ljubljana

Festival dates move from year to year: check before you book.

Getting there from the UK

Flight time
About 2h
Distance
1,247 km
Main airport
LJU

Flight times are straight-line estimates for a direct flight from Heathrow; journeys with a change take longer.

Add Slovenia to your bucket list Search flights to LJU

Practical info and travel guidance

EuroCapital: Ljubljana
Type C, F · 230VBring a UK adapter
Drive on the rightOpposite to the UK
112
EmergencyPolice, fire, ambulance
Tap water safeAcross the country
  • VisaNo visa neededUp to 90 days in any 180 across the Schengen area
  • HealthcareGHIC acceptedYour UK GHIC covers necessary state healthcare. Still take travel insurance.
  • LGBT+ travellersLegal and broadly accepted
  • Women travellersNo specific FCDO warningTake the usual precautions.

For British passport holders, summarised from the FCDO's advice for Slovenia, checked October 2026. FCDO page last updated 11 August 2026. Rules change: read the official FCDO travel advice for Slovenia before you book and again before you go.

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