December · Romania
Best time to visit Sinaia in December Weather, crowds & prices
Weather in Sinaia in December
Average temperature -1°C, 42 mm of rain, about 0 days with 6+ hours of sunshine and 91% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
8.4/10
Ranked #2 of 12 months
- Avg temp
- -1°C
- Rainfall
- 42 mm
- Humidity
- 91%
- Days with 6h+ sun
- 0
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Sinaia scores 8.4/10 for snow and ski travel - one of the top 12-month picks (#2). Expect around -1°C, 42 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Sinaia climbs the Prahova valley beneath the Carpathians, with a royal castle, a monastery and mountain trails.
December holds up well in Sinaia — 2nd best month
At -1°C (30°F) this is proper winter weather in December: layer up and split the day between outdoor highlights and indoor stops.
Only 42 mm of water-equivalent precipitation is expected (snow at altitude), leaving almost no days with 6+ hours of sunshine and 8.5 hours of daylight.
That is 8.4/10 on the same scale — 2nd of 12 months, versus 9.1/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, goggles and a helmet if you are not renting.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Sinaia in December?
- In December, Sinaia averages -1°C, 42 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 8.4/10.
- Is December a good time to visit Sinaia?
- December earns a 8.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sinaia in December?
- Expect about 42 mm of rain in December. Average humidity is 91% and there are about 0 days with 6+ hours of sunshine.
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Sinaia, Romania. Live activities and tours from GetYourGuide, matched to this destination.