All countries

Best Time to Visit Slovenia

Climate based on Ljubljana20152024

The best overall time to visit Slovenia is August (excellent, score 91/100). The single best 14-day window: Aug 5 – Aug 18. Avoid November if you can — it scores lowest at 28/100.

Year-at-a-glance heatmap

Each cell shows a daily "visit suitability" score combining comfort (temperature), dryness (rainfall), and sunshine. Hover for details.

1
5
10
15
20
25
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Less suitable
More suitable

Best 14-day travel windows

Top pick
Aug 5 – Aug 18
14-day window • Score 93/100
Alternative 1
Jun 26 – Jul 9
14-day window • Score 91/100
Alternative 2
Jul 10 – Jul 23
14-day window • Score 91/100

Month-by-month breakdown

January

Poor
32/100
  • 5°C / -3°C
  • 81mm total
  • 5.1h sun/day

February

Poor
33/100
  • 8°C / -2°C
  • 86mm total
  • 6.0h sun/day

March

Poor
41/100
  • 12°C / 1°C
  • 73mm total
  • 8.2h sun/day

April

Fair
46/100
  • 16°C / 4°C
  • 83mm total
  • 9.8h sun/day

May

Fair
56/100
  • 19°C / 9°C
  • 139mm total
  • 10.1h sun/day

June

Excellent
85/100
  • 25°C / 14°C
  • 92mm total
  • 12.2h sun/day

July

Excellent
90/100
  • 28°C / 16°C
  • 91mm total
  • 12.6h sun/day

August

Excellent
91/100
  • 27°C / 16°C
  • 89mm total
  • 11.6h sun/day

September

Good
66/100
  • 22°C / 12°C
  • 148mm total
  • 9.3h sun/day

October

Poor
43/100
  • 17°C / 7°C
  • 120mm total
  • 7.1h sun/day

November

Poor
28/100
  • 10°C / 3°C
  • 131mm total
  • 4.7h sun/day

December

Poor
30/100
  • 6°C / -2°C
  • 96mm total
  • 4.4h sun/day

Plan your trip to Slovenia

Found your dates? Use TimeOffCalendar to line up the trip with your time off, public holidays, and your partner's schedule. Free for one person, forever.

Plan my time off
Climate data from Open-Meteo Archive API. Daily normals computed from 10 years of historical observations.
Best Time to Visit Slovenia (2026): Month-by-Month Weather Calendar