Early September 1 September
78°F
Typical afternoon high
19% historical wet-day frequency
Romania · Mountains
Is September a good time?
September averages 72°F afternoons, with about 6 rain days. Later September is typically cooler.
Historical Centru regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Brașov, Sibiu, Sighișoara and Bran Castle; conditions vary within the region.
This weather score measures sightseeing comfort. Snow and ski conditions need a separate check.
What matters most?
Weather 50% · Crowds 30% · Cost 20%
#1 of 12 months here · Balanced mix
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your September
Afternoons around 72°F (22°C): T-shirt weather; nights around 51°F (10°C): a sweater and a light jacket. About 13 hours of daylight. About 6 rain days in a typical September.
The sun rises about 06:57 and sets about 19:35 (local time, mid-month). Mornings start around 51°F (10°C); afternoons reach about 72°F (22°C). Expect rain on about 6 days in a typical September.
Early, middle or late?
Early September is typically warmer. The afternoon high averages 78°F on the 1st, versus 65°F on the 30th. Historical wet-day frequency rises from 19% to 24% between those dates.
78°F
Typical afternoon high
19% historical wet-day frequency
73°F
Typical afternoon high
21% historical wet-day frequency
65°F
Typical afternoon high
24% historical wet-day frequency
Historical daily averages from 2011–2025, smoothed over two weeks. A seasonal pattern, not a forecast. This does not establish which week has the lowest prices or fewest visitors.
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 178° | 278° | 377° | 477° | 576° | ||
| 676° | 776° | 876° | 975° | 1075° | 1174° | 1274° |
| 1374° | 1473° | 1573° | 1672° | 1772° | 1872° | 1971° |
| 2071° | 2170° | 2269° | 2369° | 2468° | 2567° | 2667° |
| 2766° | 2866° | 2965° | 3065° |
Afternoon high rain likely (25%+) local school holidays public holiday event
School-holiday dates for September 2027 aren't available in our data yet. A day without a school marker doesn't mean schools are open.
Afternoons cool from about 77°F (25°C) in the first week to 66°F (19°C) in the last. The chance of a wet day runs 17–26%.
Visitor season
Busy season. September averages 72% of August's overnight stays per day. Fewer overnight stays than August.
Overnight stays across Centru do not measure queues, day visitors or congestion at individual sights. For its size, quieter than most of Europe this month.
Hotel price season
About usual. Estimated from national hotel prices and local visitor demand; no measured regional room rate is available.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
Year-to-year variation
In the 15 years from 2011 to 2025, the month's afternoons averaged between 65°F (18°C) and 78°F (25°C); in 8 of them they were within 3°F (1.5°C) of the typical 72°F (22°C). Rain days ranged from 2 to 13; half the years had 4–8.
Rain days in each September
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 75°F | 2 |
| 2012 | 78°F | 4 |
| 2013 | 65°F | 11 |
| 2014 | 72°F | 4 |
| 2015 | 74°F | 10 |
| 2016 | 72°F | 5 |
| 2017 | 71°F | 8 |
| 2018 | 71°F | 6 |
| 2019 | 72°F | 3 |
| 2020 | 75°F | 6 |
| 2021 | 67°F | 6 |
| 2022 | 67°F | 13 |
| 2023 | 76°F | 4 |
| 2024 | 74°F | 7 |
| 2025 | 72°F | 7 |
Checked against official climate averages for Sibiu. How we check
Compare dates
| Typical conditions | Aug | Sep | Oct |
|---|---|---|---|
| Afternoons | 81°F | 72°F | 60°F |
| Rain days | 6 | 6 | 6 |
| Overnight demand | 100% | 72% | 68% |
August: Warmer afternoons than September. More overnight demand. August guide →
October: Cooler afternoons than September. October guide →
Overnight demand measures accommodation stays, not queues.
Yellow marks the top three months on the Balanced mix. September stays as your reference.
No other scored month has a Weather score at least 1.0 point higher than September.
Your comparison
Overnight stays are 100% of the busiest month.
National hotel prices and local visitor demand suggest a little below usual. No measured regional room rate is available.
Read the August guide →| Typical conditions | September | August |
|---|---|---|
| Afternoons | 72°F | 81°F |
| Nights | 51°F | 58°F |
| Rain days | 6 | 6 |
| Visitor season | Busy season | Peak season |
| Overall / 10 | 8.4 | 7.5 |
| Month rank | #1 | #8 |
| Month | Overall | Rank | High | Low | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|
| January | 6.6 | #11 | 39°F | 23°F | 9 | 4.6 | Moderate season |
| February | 6.8 | #10 | 43°F | 25°F | 6 | 5.1 | Busy season |
| March | 7.8 | #5 | 52°F | 32°F | 8 | 6.1 | Moderate season |
| April | 8.3 | #4 | 62°F | 40°F | 9 | 7.4 | Moderate season |
| May | 8.3 | #3 | 69°F | 47°F | 11 | 8.3 | Busy season |
| June | 8.3 | #2 | 77°F | 55°F | 11 | 8.6 | Busy season |
| July | 7.7 | #6 | 81°F | 58°F | 8 | 8.6 | Peak season |
| August | 7.5 | #8 | 81°F | 58°F | 6 | 9.0 | Peak season |
| September | 8.4 | #1 | 72°F | 51°F | 6 | 9.2 | Busy season |
| October | 7.7 | #7 | 60°F | 41°F | 6 | 7.5 | Busy season |
| November | 7.2 | #9 | 50°F | 34°F | 7 | 5.8 | Moderate season |
| December | 6.5 | #12 | 41°F | 27°F | 8 | 4.7 | Moderate season |
Near here
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
Cluj & northwest Romaniaabout 100 miles
Balanced Overall 8.2 · Very good weather, 73°F (23°C) · Busy season · Cost cheap
Bucovina & northeast Romaniaabout 110 miles
Balanced Overall 8.6 · Excellent weather, 73°F (23°C) · Busy season · Cost cheap
OlteniaRomania · about 120 miles
Balanced Overall 8.3 · Excellent weather, 78°F (26°C) · Busy season · Cost cheap
BucharestRomania · about 130 miles
Balanced Overall 8.5 · Excellent weather, 79°F (26°C) · Steady all year · Cost cheap
Romania's Black Sea coast & Danube DeltaRomania · about 160 miles
Balanced Overall 9.1 · Excellent weather, 77°F (25°C) · Low season · Cost cheap
Elsewhere in Europe
Brașov, Sibiu & central Transylvania's weather ranks 3 of 28 mountain regions this month. Brașov, Sibiu & central Transylvania already has excellent weather in September; these mountain regions outside Romania are about as good and quieter for their season, nearest first.
Western MacedoniaGreece · about 440 miles
Excellent weather (9.6): 7°F warmer afternoons, 2 fewer rain days, quieter for its season (moderate season)
TrentinoItaly · about 650 miles
Excellent weather (9.0): about as warm, quieter for its season (moderate season), pricier
Aosta ValleyItaly · about 840 miles
Excellent weather (9.0): about as warm, quieter for its season (low season), pricier
AuvergneFrance · about 1040 miles
Very good weather (8.7): about as warm, 2 more rain days, quieter for its season (moderate season), pricier
It's busy season, 72% of the busiest month and 10% above its average month. That means about 18,000 overnight visitors on a typical September night across the region, 81% of them from Romania itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 6,800 more: 37 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Urban, 0–100) | 81 |
| How our weather was checked | Official climate averages for Sibiu from the national weather service, every month: afternoon highs typically within 1°F (0.8°C), night lows within 2°F (1.1°C). |
| Tourist nights per 1,000 residents per day | 8 |
| Busiest month here | August · 11 |
| Visitors as share of people present | 0.8% |
| Rank among Europe's regions this month | 23rd percentile |
| Domestic share of nights | 81% |
| Platform rental nights per 100 counted nights | 37 |
| Visitor share if every platform night were extra | 1.1% |
| National hotel-price season | Romania historical 2024–2025 index: About usual (+3% vs its average month). Not a local room quote. |
| Population used | 2.3 million |
| Statistical region | RO12 · Centru |
Crowds: Eurostat nights spent at tourist accommodation, by month and NUTS 2 region, 2024–2025 average. Overnight visitors per night is the month's nights divided by its days; the per-1,000 figure is Eurostat's, against each year's population. Platform rentals: Eurostat nights booked via Airbnb, Booking, Expedia and Tripadvisor, 2024–2025 average, shown separately because some properties are in both counts. Weather: Holiday Climate Index computed from ERA5 reanalysis with daily highs, night lows and rain days corrected from open national weather-service station records, 2011–2025, population-weighted to the region; day-by-day figures are the same data averaged by date. Heat and rain odds are counted across those years. Sunrise and sunset: NOAA solar equations, local time. Prices: Eurostat price level index and HICP, national. Full method · this region's data.