Sinaia in Summer
In summer (June, July and August), Sinaia sees average daytime highs around 22°C and overnight lows near 12°C, with 377 mm of rain over about 53 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 19°C in early June to 21°C by late August. The sky is clear or mostly clear about 30% of the time across summer, and the air most often feels dry.
Summer is Sinaia's best season of the year to visit on our travel score. For the whole year in context, see Sinaia's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 12°C
- Rainfall
- 377 mm
- 53 wet days
- Avg wind
- 6 km/h
- Travel score
- 5.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Sinaia in Summer
Over the season highs climb from about 19°C in early June to 21°C by late August.
A typical summer day in Sinaia reaches about 22°C and drops to 12°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Sinaia
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Sinaia weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 0° / -7° | 42 | 8.1 | 7.9 | 8.9 | 0.0 |
| Feb | 2° / -5° | 38 | 7.7 | 7 | 10.1 | 0.0 |
| Mar | 6° / -2° | 57 | 11.2 | 7.5 | 11.6 | 0.6 |
| Apr | 12° / 3° | 84 | 14.6 | 2.7 | 13.2 | 2.7 |
| May | 17° / 7° | 129 | 18.8 | 0.4 | 14.6 | 4.3 |
| Jun | 21° / 11° | 144 | 19.1 | 0 | 15.4 | 5.0 |
| Jul | 23° / 12° | 132 | 18.1 | 0 | 15.1 | 5.7 |
| Aug | 23° / 12° | 101 | 15.3 | 0 | 13.9 | 6.2 |
| Sep | 18° / 8° | 71 | 10.4 | 0 | 12.3 | 5.8 |
| Oct | 13° / 4° | 61 | 8.7 | 1.5 | 10.7 | 3.6 |
| Nov | 7° / -1° | 48 | 8 | 4.2 | 9.3 | 0.9 |
| Dec | 1° / -5° | 49 | 7.8 | 6.3 | 8.6 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 30% of the time across summer.
Chance of precipitation in Summer
Sinaia gets around 377 mm of rain over 53 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 12 min in early June to 13 h 12 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.5 kWh/m².
Hazard calendar for Sinaia
In summer, Sinaia overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Sinaia's rainy season runs April–September, when most of the year's rain falls.
Is summer a good time to visit Sinaia?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Sinaia for sightseeing.
What to pack for Sinaia in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Sinaia sees daytime highs around 22°C and nights near 12°C. Pack rain gear. Worth having: light clothes and sun protection. About 53 days see rain.
UV index in Sinaia in Summer
Clear-sky midday UV across summer averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sinaia peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 8 | 6 | 8 | 8 | 8 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | Very high | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 8 | Very high |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Sinaia?
Sinaia sits at 45.4°N, 25.6°E, 0 m above sea level, in Romania. The nearest listed city is Breaza, 21 km away.
Topography around Sinaia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sinaia.
Within 3 km, the terrain around Sinaia has large variations in elevation — a maximum elevation change of 880 m around an average of 1,039 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,981 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,409 m.
The land around Sinaia is covered by trees (92%) within 3 km, trees (75%) and grassland (23%) within 16 km, and trees (61%) within 80 km.
Romania travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 44% of US
- price level, 2025
- GDP per capita
- $22,538
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 82%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2023
- Road deaths
- 10.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 605
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sinaia (45.35°, 25.55°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.