September in Costeşti brings pleasant temperatures around 21°C (70°F) during the day, dropping to 9°C (48°F) at night, with quite a bit of rainfall expected, averaging around 100 mm (3.9 in) for the month.
If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Costeşti.
Min Temperature
Max Temperature
Chance of Rain
Precipitation
Rainy days
Pick a month to see the average temperature, rainfall and sunshine in Costeşti - 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 September →
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 September 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 Costeşti climate overview or explore weather in Romania.
Where to go in September - average daytime high across popular destinations.
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.
The 10 most charming villages in France
Discover France's top 10 beautiful villages. From Normandy to the Côte d'Azur, experience quaint squares and cobbled streets. Which one will you visit this summer?
