Celje weather in August 2025

Expect 75°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Celje in August. Check more long-term weather averages for Celje in August before you book your next holiday to Slovenia in 2025/2026.

75
75°F max day temperature
8
8 hours of sunshine per day
15
15 days with some rainfall
55
55°F min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
5.1
5.1 inches of monthly rainfall
7
7 (High) UV index

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The August weather guide for Slovenia (Celje) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

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How hot is it in Celje in August?

Daytime temperatures usually reach 75°F in Celje in August, falling to 55°F at night.

How sunny is it in Celje in August?

There are normally 8 hours of bright sunshine each day in Celje in August - that's 54% of daylight hours.

Does it rain in Celje in August?

There are usually 15 days with some rain in Celje in August and the average monthly rainfall is 5.1 inches.

Celje August sunrise & sunset times

Browse the sunrise and sunset times for Celje in August 2025. Select a month to view Celje sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Friday, 1st August 2025	04:41	19:29
Saturday, 16th August 2025	04:59	19:06
Sunday, 31st August 2025	05:18	18:39

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Slovenia - quick facts
Flight time^✝	2 hours
Time difference	UK +1 hour
Language(s)	Slovenian
Currency	Euro
Electricity	C + F plug (230V)
Driving side	Right
Why visit?	Beaches Nature Nightlife
Tourist info	Slovenian Tourist Board