Bucharest in September

In September, Bucharest averages 24°C (75°F) during the day and 12°C (54°F) at night, with around 6 days of rain (40 mm total).

High season

Conditions are comfortable for sightseeing without being sweltering. Occasional showers are likely but won't dominate.

September is a great month to visit Bucharest: pleasant temperatures and relatively few wet days.

24°C
Avg high
12°C
Avg low
6
Rain days
40 mm
Rainfall

How September compares to the rest of the year in Bucharest

4th
warmest month of the 12
12th
wettest month of the 12
7%
of yearly rainfall falls in September
12 h 34 min
daylight on the 15th

September is in the middle of the year for warmth in Bucharest (4th of 12) and one of the driest months (12th of 12). Daytime temperature runs 8°C above the annual average (16°C). September runs 5°C cooler than August (29°C) and cools 6°C in October (18°C).

September sunrise & sunset in Bucharest

🌅
Sunrise (15th)
6:54 AM
🌇
Sunset (15th)
7:27 PM
Day length
12 h 34 min

Times shown for Bucharest local time (Europe/Bucharest), calculated for the 15th of September. They shift by a few minutes day to day across the month.

Photography light in Bucharest — September

Golden-hour and blue-hour windows for the 15th of September, in Bucharest's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
5:54 AM – 6:34 AM
🌄 Golden hour (AM)
6:34 AM – 7:34 AM
🌇 Golden hour (PM)
6:47 PM – 7:47 PM
🌆 Blue hour (PM)
7:47 PM – 8:27 PM
Milky Way galactic core
Fair
Core only briefly above the horizon — a marginal month even from dark sites near Bucharest.

📅 When to book — Bucharest in September

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (High season) and Bucharest's popularity.

✈ Flights — lead time
2-3 months
Prices are above off-season but not the absolute peak. Tuesday/Wednesday departures are usually cheaper than weekend ones.
🏨 Lodging — lead time
2-3 months
Wide selection still available at this lead time. Premium properties book first; consider 'last-minute deal' availability at 2-week mark if your dates are flexible.

Crowds & pricing — September in Bucharest

High season

This is a busy month in Bucharest — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.

Why this tier: excellent tourism weather

Sun & mosquito risk — September in Bucharest

☀️ UV Index (noon, 15th)
8.8
Very high
Limit sun exposure between 11 AM and 3 PM; SPF 30-50, reapply every 90 minutes outdoors.
🦟 Mosquito risk
●●○○○
Low
Mosquitoes present but manageable. Pack repellent (DEET 10-20%) for evenings near water.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Bucharest in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 1°C / 34°F -5°C / 23°F 40 mm 9 5
February 4°C / 39°F -3°C / 27°F 30 mm 7 4
March 11°C / 52°F 1°C / 34°F 35 mm 8 1
April 18°C / 64°F 6°C / 43°F 45 mm 10 0
May 23°C / 73°F 11°C / 52°F 70 mm 12 0
June 27°C / 81°F 15°C / 59°F 80 mm 11 0
July 30°C / 86°F 16°C / 61°F 55 mm 8 0
August 29°C / 84°F 16°C / 61°F 40 mm 7 0
September 24°C / 75°F 12°C / 54°F 40 mm 6 0
October 18°C / 64°F 7°C / 45°F 30 mm 7 0
November 9°C / 48°F 2°C / 36°F 40 mm 9 1
December 2°C / 36°F -3°C / 27°F 40 mm 9 3

Other cities with similar September weather

🌍 See the full ranked list of climate twins for Bucharest in September →

Frequently asked questions

How hot is Bucharest in September?

In September, Bucharest averages a high of 24°C (75°F) and a low of 12°C (54°F) — generally warm.

Does it rain a lot in Bucharest in September?

September sees occasional rain in Bucharest, with about 6 rainy days on average.

Is September a good time to visit Bucharest?

September is warm. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Bucharest in September?

Pack light layers for warm days and cooler evenings. See the full September packing list for Bucharest for a complete, climate-based checklist.

Open Bucharest on the interactive map

Check the live 10-day forecast and sunrise/sunset.