Sinaia Weather in September
Thinking of visiting Sinaia in September? Expect pleasant temperatures reaching 19°C (66°F) during the day, dropping to 8°C (46°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Sinaia in September
The climate data from previous years indicates about 10 days of rain, averaging 78 mm (3.1 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Sinaia in September
September in Sinaia sees highs of 19°C (66°F) and lows of 8°C (46°F) overnight. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
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 Sinaia's climate page.
Sinaia Temperature in September
Min Temperature
8°C (46°F)
Max Temperature
19°C (66°F)
Chance of Rain
33%
Precipitation
78 mm (3.1 in)
Rainy days
10 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sinaia typically drop from around 14°C (57°F) at the start of September to approximately 10°C (50°F) by the end. Nights are cold, with lows typically ranging from 1°C (34°F) to 5°C (41°F).
Average temperatures in September
Daily Historical Precipitation
50-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 Sinaia in September
Browse day-by-day weather records for Sinaia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sinaia historical weather extremes in September
Based on 49 years of weather observations in Sinaia between 1976 and 2025, these are the recorded extremes.
- On September 3, 2025, temperatures climbed to 27°C (81°F), marking the warmest September day on record.
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
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What to Wear in Sinaia in September
For Sinaia in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket.What To Do in Sinaia 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 Sinaia's climate page.
See the full Sinaia climate overview or explore weather in Romania.
