Bulgaria Plovdiv Weather in September — Climate Guide
September in Plovdiv is high
September is high for Plovdiv.
September is Plovdiv's best shoulder-season month — daylight still strong (12.5h+), comfortable 25°C days, crowds at Old Town dropping 30-40% from August Dormition-feast peak, hotels moderating, and the Bulgarian wine harvest in the surrounding Thracian Valley (early September to mid-October) brings the canonical regional autumn event — guided winery day tours, harvest dinners at wineries, and grape-stomping experiences. International Plovdiv Autumn Fair mid-September is the second-largest of the 4 annual trade-fair editions (only May edition is bigger). Bulgarian Independence Day September 22 — public holiday with ceremonies. If you can only travel one shoulder month, September wins over April for Plovdiv (wine harvest + cooler weather).
Travel score
Best shoulder month — 12.5h daylight + wine harvest + Old Town festival + Autumn Fair
September Weather at a Glance
September averages 77°F / 25°C highs and 57°F / 14°C lows with 45mm precipitation over 7 wet days. Humidity 65%. Sunshine 8h. Daylight drops from 13h to 12h across the month — sunset moves from 19:45 to 18:30. The Bulgarian wine harvest in the surrounding Thracian Valley (early September to mid-October) is the canonical regional spectacle — Mavrud, Melnik, Rubin, Dimyat all harvested + crushed during this window.
September Travel Advice
International Plovdiv Autumn Fair mid-September (second-largest of 4 annual editions) drives 30-50% hotel premium during fair weeks — book central rooms 6-8 weeks ahead or stay in Marasha residential west for value. Bulgarian Independence Day September 22 — public ceremonies + some shops closed; restaurants stay open. Bulgarian wine harvest day tour to Thracian Valley wineries BGN 100-250 / $56-140 — book 1-2 weeks ahead, includes harvest activities + lunch at winery. Rhodope autumn foliage starts late month — Bachkovo Monastery at peak by early October.
September Pricing Trends
Shoulder pricing returns: Hotel Hebros $120-200/night (Autumn Fair weeks $160-280), mid-range 4-star $80-150. Flights from EU $140-300. Autumn Fair weeks add $40-100 hotel premium.
Plovdiv September Weather Stats
Avg High
25°C
Avg Low
14°C
Rainy Days
7
45mm total
Sunshine
8h
Daily avg
Humidity
65%
moderate
UV Index
5
Moderate
Wind
7 km/h
Gusts 20
Sea Temp
19°C
no swimming (Plovdiv inland)
Crowds
Busy
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
24 μg/m³
PM10
40 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
25°C
Nighttime
13°C
Humidity and wind affect how the actual temperature feels.
Wind
7 km/h
Max gust 20 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- 25/14°C still comfortable walking + sightseeing
- Crowds dropping 30-40% from August
- Hotels moderating 15-20% off peak (Autumn Fair weeks excluded)
- Bulgarian wine harvest in Thracian Valley
- Plovdiv Old Town festival mid-September
- Rhodope + Bachkovo autumn foliage starts late month
Cons
- Plovdiv Autumn Fair mid-September drives 30-50% hotel premium during fair weeks
- Rain 7 days/month + autumn storms possible
- Sunset at 19:00 by month-end (vs 20:45 July)
- Outdoor café season winding down
- Variable weather (cold snap possible late Sept)
- Independence Day September 22 some shops closed
September Events & Festivals
- Plovdiv Old Town festival mid-September (cultural + craft + Bulgarian-folklore weekend)
- International Plovdiv Autumn Fair mid-September (the second-largest of 4 annual editions)
- Bulgarian Independence Day (September 22 — public holiday)
- Bulgarian wine harvest in Thracian Valley (early Sept-mid Oct)
Plovdiv in September — Full Picture
September is Plovdiv's best shoulder-season month — daylight still strong (12.5h+), comfortable 25°C days, crowds at Old Town dropping 30-40% from August Dormition-feast peak, hotels moderating, and the Bulgarian wine harvest in the surrounding Thracian Valley (early September to mid-October) brings the canonical regional autumn event — guided winery day tours, harvest dinners at wineries, and grape-stomping experiences. International Plovdiv Autumn Fair mid-September is the second-largest of the 4 annual trade-fair editions (only May edition is bigger). Bulgarian Independence Day September 22 — public holiday with ceremonies. If you can only travel one shoulder month, September wins over April for Plovdiv (wine harvest + cooler weather).
What to Wear & What to Pack
Early autumn — tee + cardigan or light sweater, light jacket for evenings, sneakers, compact umbrella. Layered approach essential — 25°C days drop to 14°C nights. Sunglasses for low autumn sun.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
18°C
7°C
9/mo
Summer (Jun·Jul·Aug)
29°C
17.3°C
7.3/mo
Autumn (Sep·Oct·Nov)
Current18.3°C
8.3°C
8.7/mo
Winter (Dec·Jan·Feb)
6.3°C
-1.7°C
8/mo
Plovdiv Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 5° | -3° | 8d·40mm | 2h | 78% | 1 | Quiet | Low season | |
| 8° | -1° | 7d·35mm | 3h | 75% | 2 | Quiet | Low season | |
| 13° | 2° | 8d·45mm | 4h | 70% | 3 | Quiet | Shoulder | |
| 18° | 7° | 9d·50mm | 6h | 67% | 4 | Moderate | Shoulder | |
| May (Best) | 23° | 12° | 10d·60mm | 7h | 65% | 5 | Busy | Peak |
| June (Best) | 27° | 16° | 10d·65mm | 9h | 62% | 7 | Busy | Peak |
| July (Best) | 30° | 18° | 7d·50mm | 11h | 58% | 8 | Very busy | Peak |
| August (Best) | 30° | 18° | 5d·35mm | 11h | 60% | 8 | Very busy | Peak |
| 25° | 14° | 7d·45mm | 8h | 65% | 5 | Busy | Peak | |
| 19° | 8° | 9d·55mm | 5h | 72% | 3 | Moderate | Shoulder | |
| 11° | 3° | 10d·50mm | 3h | 78% | 1 | Quiet | Shoulder | |
| 6° | -1° | 9d·50mm | 2h | 80% | 1 | Moderate | Shoulder |
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Plovdiv September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Plovdiv?
Plovdiv in September is high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Plovdiv in September?
Plovdiv September averages a high of 25°C and a low of 14°C.
Does it rain much in Plovdiv in September?
Plovdiv September averages 45mm of rainfall over about 7 rainy days.
What should I wear in Plovdiv in September?
Early autumn — tee + cardigan or light sweater, light jacket for evenings, sneakers, compact umbrella. Layered approach essential — 25°C days drop to 14°C nights. Sunglasses for low autumn sun.
What time are sunrise and sunset in Plovdiv in September?
Plovdiv September sunrise is 06:45 and sunset is 19:15, with 12h 30min of daylight.
What's the air quality like in Plovdiv in September?
Plovdiv September air quality (AQI) averages 65, rated Moderate. PM2.5 averages 24μg/m³.
What activities are recommended in Plovdiv in September?
In September, Plovdiv is great for Plovdiv Old Town festival mid-September, Plovdiv Autumn Fair mid-September (2nd-largest of 4 annual editions), Bulgarian wine harvest day tours Thracian Valley.
Is September peak season in Plovdiv?
Plovdiv September crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Plovdiv
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.