Costinesti Weather in September
Thinking of visiting Costinesti in September? Expect high temperatures reaching 24°C (75°F) during the day, dropping to 17°C (63°F) at night, with some rainfall likely.
Rainfall in Costinesti in September
Analyzing past climate data, one can expect approximately 5 days of rain, averaging 58 mm (2.3 in). Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Costinesti in September
Costinesti in September has excellent weather. Days reach 24°C (75°F) and nights cool to 17°C (63°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 17°C (63°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Costinesti in September
With approximately 228 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Costinesti.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Costinesti's climate page.
Costinesti Temperature in September
Min Temperature
17°C (63°F)
Max Temperature
24°C (75°F)
Chance of Rain
18%
Precipitation
58 mm (2.3 in)
Rainy days
5 days
Humidity
79% *
Sunshine
228 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Costinesti typically drop from around 25°C (77°F) at the start of September to approximately 21°C (70°F) by the end. Nights are cool, with lows typically ranging from 12°C (54°F) to 16°C (61°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Costinesti in September
Browse day-by-day weather records for Costinesti spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Costinesti historical weather extremes in September
The extremes listed below come from historical weather data collected in Costinesti from 1997 through 2025.
- The warmest day in September was on September 15, 2022, with a maximum of 34°C (93°F).
- On September 24, 2000, Costinesti saw its coldest September day with temperatures maxing out at 12°C (54°F).
- The lowest overnight temperature recorded in September was 4°C (39°F) (September 27, 2018).
Best Places in Romania in September
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
pleasant
tolerable
unpleasant
poor
What to Wear in Costinesti in September
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. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Costinesti in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Costinesti's climate page.
Temperature Rainfall Sunshine Humidity
See the full Costinesti climate overview or explore weather in Romania.
