Cluj-Napoca (Cluj) weather by month
The best time to visit Cluj-Napoca (Cluj) is May, June and September — 92/100 in September, 24°C and 7 rainy days. The best season is summer, June to August (86/100 on average).
The worst month is January at 45/100 — freezing, dry, clean air. See January →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Romania →
Best season: June to August (86/100 on average) · worst January (45/100)
- Days
- 24°C
- Nights
- 11°C
- Wet days
- 7
- Sun
- 9.4 h
- Humidity
- 73%
- Daylight
- 13 h
Cluj-Napoca, month by month
Comfort score out of 100 for the kind of trip Cluj-Napoca is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
What's on in Cluj-Napoca through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
- March
- Cluj-Napoca Marathon20 Mar – 15 Apr (usually)Festival
- April
- Orthodox Easter10–13 AprHoliday
- May
- Cluj Days20 May – 5 Jun (usually)Festival
- June
- Transilvania Film Festival5–25 Jun (usually)Festival
- July
- Jazz in the Park1–15 Jul (usually)Festival
- Electric Castle10–25 Jul (usually)Festival
- August
- UNTOLD1–12 Aug (usually)Festival
- October
- Toamna Muzicala Clujeana5–30 Oct (usually)Festival
- November
- Christmas market25 Nov – 5 Jan (usually)Festival
Crowds in Cluj-Napoca in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyschool holidays in 3 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Good to know before you go to Cluj-Napoca
Real experiences from travellers' own write-ups, quoted with a link to the original.
Visas & entry
A guide to Cluj-Napoca's nearby Turda Salt Mine flags a packing detail that surprises visitors in summer: the underground temperature holds steady around 10-12°C year-round, so a hoodie or jacket is worth bringing even if it's 35°C outside when you leave the city. Their broader take on Cluj itself: it sits in the shadow of more touristy Romanian destinations despite being the country's second-largest city, which in practice means genuinely fewer crowds at sights like Union Square and the historic churches around Cetatuia Hill.
Traveller notes on Cluj-Napoca
What people who have been say about the place — the year-round notes first, then month by month.
Forum posters describe late May into June as one of the best windows to see Transylvania - forests, pastures and meadows all reaching peak color, making the countryside around Cluj particularly striking this time of year. Timing right at the edge of the month has an added bonus: Cluj Days, a free city-wide festival running mid-May through the first days of June, fills the city with events. Beyond the city itself, day trips to the Apuseni Mountains (via Arieșeni or a bus to Băișoara) and the Turda Gorge get recommended for short hikes in the same favorable early-summer window.
Forum posters describe snow in Cluj-Napoca itself around Christmas and New Year as genuinely uncertain, less likely than many visitors assume, though the nearby Apuseni Mountains, about an hour's drive away, reliably hold snow by this point in December. Posters describe December overall as iffy with no real certainty either way - it can turn out nice or properly snowy, with recent years trending milder and more likely to bring decent weather than a hard winter stretch. Posters consistently flag the short daylight hours as a practical planning factor, recommending a rental car to avoid losing time to public transport schedules during the darker part of the day. Posters generally rate December as a genuinely unpredictable, but workable, time to visit Cluj-Napoca, with the mountains the more reliable bet for anyone specifically chasing snow.
Add your own note from Cluj-Napoca's card on the map.