Slănic in May sees pleasant daytime temperatures of 19°C (66°F) and nighttime lows of 9°C (48°F). Rainfall is fairly high this month at around 130 mm (5.1 in), so pack a rain jacket to stay dry.
If you prefer dry days with pleasant temperatures, September typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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Pick a month to see the average temperature, rainfall and sunshine in Slănic - and find the best time to visit.
Find out more about the weather in Romania and which places have the best travel conditions in this month. See all of Romania in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Slănic climate overview or explore weather in Romania.
Where to go in May - average daytime high across popular destinations.
Bucharest
24°C (75°F) Timişoara24°C (75°F) Mamaia
21°C (70°F) Constanţa21°C (70°F) Cluj-Napoca21°C (70°F) Eforie Nord21°C (70°F) Sibiu
20°C (68°F) Braşov
19°C (66°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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