Slovenia weather in August - temperature, rain and is it a good time to visit?

August is one of the best months for a holiday in Slovenia.
Daytime
27°
Night
15°
☀️ Day length
14 h 11 min
Chance of rain
39%
Thunder days
20%
Humid days
76%
WEATHER THROUGH THE YEARSlovenia - August vs the year-2°-1°12°18°21°10°26°14°28°16°27°15°22°12°17°11°-1°CHANCE OF RAIN (%)304334445548473944414424JanFebMarAprMayJunJulAugSepOctNovDecWARMESTJul (28°)COLDESTJan (5°)DRIESTDec (24%)WETTESTMay (55%)world-prices.com · 2026-07-08 · ★ best months
In August, Slovenia averages about 27° during the day and 15° at night. There's a moderate chance of rain (about 39%).

Slovenia weather all year - average temperatures and rain

MonthDayNightChance of rain
January 5℃-2℃30%
February 7℃-1℃43%
March 12℃2℃34%
April ★ 18℃6℃44%
May ★ 21℃10℃55%
June ★ 26℃14℃48%
July ★ 28℃16℃47%
August 27℃15℃39%
September ★ 22℃12℃44%
October ★ 17℃7℃41%
November 11℃3℃44%
December 6℃-1℃24%
★ - months most often recommended for travel

Where is it warmest in Slovenia in August? Weather by city

PlaceDayNight🌊 SeaChance of rain
Koper 29℃17℃26℃35%
Predjama 29℃20℃-27%
Ljubljana 27℃14℃-43%
Kranj 27℃14℃-38%
Maribor 27℃14℃-39%
Novo Mesto 27℃15℃-38%
Ptuj 27℃14℃-39%
Smartnoprilitiji 27℃14℃-43%
Celje 26℃14℃-41%
Velenje 26℃14℃-45%
Travelling soon? Check the live 14-day weather forecast for Slovenia.

Slovenia weather - other months

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember