Slănic Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Slănic.
Climate overview of Slănic
Slănic, Prahova, Romania, experiences significant temperature variation throughout the year. Summers bring daytime highs of 26°C (79°F) in August, while winters cool to 2°C (36°F) in January.
With around 1013 mm (40 in) of annual rain/snowfall, Slănic has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has warm summers and very cold winters. The wettest month is June.
Slănic Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Slănic - and find the best time to visit.
Monthly Temperature in Slănic
Depending on the time of the year, temperatures range from comfortable to very cold in Slănic. Average daytime temperatures reach a comfortable 26°C (79°F) in August. In January, the coolest month of the year, temperatures drop to a very cold 2°C (36°F).
At night, temperatures range from around 14°C (57°F) in August to -6°C (21°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Slănic
Slănic has a relatively rain/snowy climate with high precipitation levels, averaging 1013 mm (40 in) of rain/snowfall annually. Slănic can be quite wet during June, receiving approximately 147 mm (5.8 in) of precipitation over 16 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 46 mm (1.8 in) of precipitation spread across 13 snowy/rainy days. For more details, please visit our Slănic Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Slănic
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Fewest rainy days: September and October
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Slănic
What is the best time to visit Slănic?
September typically offers the most optimal weather in Slănic. In contrast, January, February, March, November and December tend to have less optimal conditions. Slănic has warm summers and very cold winters.
What temperatures can I expect in Slănic?
Daytime highs range from 2°C (36°F) in January to 26°C (79°F) in August. Nighttime lows range from -6°C (21°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Slănic get?
Annual rainfall is around 1013 mm (40 in). June is the wettest month with 147 mm (5.8 in), while January is the driest with 46 mm (1.8 in).
Slănic 3-Day Forecast
Slănic on the map
Slănic is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Bucharest
31°C (88°F) Timişoara30°C (86°F) Constanţa29°C (84°F) Mamaia29°C (84°F) Eforie Nord29°C (84°F) Cluj-Napoca26°C (79°F) Sibiu
26°C (79°F) Braşov
25°C (77°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The train journey from Bucharest to Brasov is one of the most beautiful in Romania
In three hours, you'll get from Bucharest to Brasov by train. It is one of the most beautiful routes in Romania, certainly the most beautiful that can be done by express train.
7 of the most budget-friendly destinations in Europe
Discover Europe's top budget-friendly destinations including Budapest, Kotor, Krakow, and more, perfect for affordable and exciting travel.
Cycle the Danube trail
The Danube cycle route is one of the most popular cycling routes in Europe, and rightly so, because it is a varied route that is interesting both in terms of culture and nature.