Romania Bucharest Weather in September — Climate Guide
September in Bucharest is high
September is high for Bucharest.
September is one of Bucharest's two best months — comfortable 24°C temperatures, 8h sunshine, dramatically reduced crowds from summer peak (30-40% below July-August), Romanian wine harvest in Dealu Mare + Cotnari + Murfatlar, and the George Enescu Festival biennial September (every odd-numbered year — the canonical Bucharest cultural moment internationally). Bran + Peleș + Brașov Carpathian Mountain hiking + Cișmigiu + Herăstrău parks at their atmospheric autumn best. The canonical shoulder-season sweet spot for first-time Bucharest visitors prioritizing weather + fewer crowds + cultural depth.
Travel score
Shoulder-season sweet spot — 24°C comfortable + Romanian wine harvest + George Enescu Festival biennial
September Weather at a Glance
September averages 75°F / 24°C highs and 54°F / 12°C lows with 45mm precipitation over 7 wet days. Humidity 66%. Sunshine 8h daily. Daylight 12h 30min average. UV index 6 — moderate. Air quality good — best month of the year for Bucharest outdoor culture.
September Travel Advice
September is the canonical Bucharest + Romania shoulder-season for first-time visitors prioritizing weather + fewer crowds + Romanian wine harvest + George Enescu Festival (biennial, odd-numbered years — 2027, 2029, etc). Pre-book the George Enescu Festival tickets + central hotels 4-6 weeks ahead. Romanian wine harvest tours in Dealu Mare (100 km north) are at canonical timing. Carpathian Mountain autumn foliage onset late September. Pack a light cardigan — evenings cool to 12°C.
September Pricing Trends
Shoulder pricing 15-20% below July-August peak: Athénée Palace Hilton $150-260/night, mid-range 4-star $80-160. Flights from EU $150-320. George Enescu Festival biennial September (odd-numbered years) adds 15-25%.
Bucharest September Weather Stats
Avg High
24°C
Avg Low
12°C
Rainy Days
7
45mm total
Sunshine
8h
Daily avg
Humidity
66%
comfortable
UV Index
6
High
Wind
9 km/h
Gusts 23
Sea Temp
20°C
warm (Black Sea coast still warm 20°C)
Crowds
Moderate
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
20 μg/m³
PM10
36 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
24°C
Nighttime
12°C
Humidity and wind affect how the actual temperature feels.
Wind
9 km/h
Max gust 23 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- 24/12°C — comfortable late-summer warmth with reduced crowds
- Crowds 30-40% below July-August peak
- Romanian wine harvest in Dealu Mare + Cotnari + Murfatlar
- George Enescu Festival biennial September (odd-numbered years — canonical international classical music)
- Daylight stretches from 13h to 12h across the month
- Bucharest + Bran + Peleș + Brașov + wine country at canonical autumn timing
Cons
- Some afternoon thunderstorms (late summer pattern)
- George Enescu Festival adds 15-25% to central hotels (odd-numbered years)
- Evenings noticeably cool — pack light cardigan
- Sunset 19:25 by month-end (vs 20:50 August)
September Events & Festivals
- George Enescu Festival biennial September every odd-numbered year (the canonical Bucharest international classical music event)
- Romanian wine harvest across Dealu Mare + Cotnari + Murfatlar (peak September)
- Bucharest International Jazz Festival (variable September)
- Bucharest returning to non-summer pricing
- Shoulder-season sweet spot
Bucharest in September — Full Picture
September is one of Bucharest's two best months — comfortable 24°C temperatures, 8h sunshine, dramatically reduced crowds from summer peak (30-40% below July-August), Romanian wine harvest in Dealu Mare + Cotnari + Murfatlar, and the George Enescu Festival biennial September (every odd-numbered year — the canonical Bucharest cultural moment internationally). Bran + Peleș + Brașov Carpathian Mountain hiking + Cișmigiu + Herăstrău parks at their atmospheric autumn best. The canonical shoulder-season sweet spot for first-time Bucharest visitors prioritizing weather + fewer crowds + cultural depth.
What to Wear & What to Pack
Layered late-summer + early-autumn. T-shirt + light pants + light cardigan for evenings + waterproof + comfortable walking shoes. Daytime 24°C is properly warm; evenings drop to 12°C and feel cool. Sunglasses + light sun protection.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
16.7°C
6°C
10/mo
Summer (Jun·Jul·Aug)
28°C
15.3°C
9.3/mo
Autumn (Sep·Oct·Nov)
Current17.3°C
6.7°C
8.3/mo
Winter (Dec·Jan·Feb)
3.7°C
-3.3°C
9.7/mo
Bucharest Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 2° | -5° | 10d·40mm | 2h | 82% | 1 | Quiet | Low season | |
| 5° | -3° | 9d·35mm | 3h | 79% | 2 | Quiet | Low season | |
| 11° | 1° | 9d·40mm | 4h | 73% | 3 | Quiet | Shoulder | |
| 17° | 6° | 10d·50mm | 5h | 70% | 4 | Moderate | Shoulder | |
| 22° | 11° | 11d·70mm | 7h | 70% | 5 | Moderate | Shoulder | |
| June (Best) | 26° | 14° | 11d·80mm | 9h | 67% | 7 | Busy | Peak |
| July (Best) | 29° | 16° | 9d·65mm | 11h | 64% | 8 | Busy | Peak |
| August (Best) | 29° | 16° | 8d·50mm | 11h | 63% | 8 | Busy | Peak |
| September (Best) | 24° | 12° | 7d·45mm | 8h | 66% | 6 | Moderate | Shoulder |
| 18° | 6° | 8d·50mm | 6h | 73% | 4 | Moderate | Shoulder | |
| 10° | 2° | 10d·50mm | 3h | 79% | 2 | Quiet | Low season | |
| 4° | -2° | 10d·40mm | 2h | 82% | 1 | Moderate | Shoulder |
View Other Months
Bucharest September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Bucharest?
Bucharest in September is high. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Bucharest in September?
Bucharest September averages a high of 24°C and a low of 12°C.
Does it rain much in Bucharest in September?
Bucharest September averages 45mm of rainfall over about 7 rainy days.
What should I wear in Bucharest in September?
Layered late-summer + early-autumn. T-shirt + light pants + light cardigan for evenings + waterproof + comfortable walking shoes. Daytime 24°C is properly warm; evenings drop to 12°C and feel cool. Sunglasses + light sun protection.
What time are sunrise and sunset in Bucharest in September?
Bucharest September sunrise is 06:55 and sunset is 19:25, with 12h 30min of daylight.
What's the air quality like in Bucharest in September?
Bucharest September air quality (AQI) averages 60, rated Moderate. PM2.5 averages 20μg/m³.
What activities are recommended in Bucharest in September?
In September, Bucharest is great for George Enescu Festival biennial September odd-numbered years (canonical Bucharest international classical music), Romanian wine harvest tours (Dealu Mare 100 km north of Bucharest), Bran + Peleș + Brașov Carpathian Mountain autumn day trip (cooler comfortable conditions + autumn foliage early-September onset).
Is September peak season in Bucharest?
Bucharest September crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Bucharest
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.