Climate & Weather in Cluj-Napoca

Good to Know

• May through September is genuinely the best window for visiting or working outdoors; temperatures are comfortable and sunshine hours peak (9-11 hours daily in June-July)
• Winter runs November–February with sustained freezing; pack heavy outerwear and expect slippery streets during snow events
• Summer thunderstorms are common in June; brief but sometimes heavy. Come prepared with an umbrella even on sunny-looking days
• Spring (March–April) and autumn (September–October) are mild and beautiful but increasingly rainy—bring layers
• Humidity stays moderately high year-round (67–88%), so expect humid heat in summer and damp cold in winter