Italy Rome Weather in September — Climate Guide
September in Rome is Excellent
September is Excellent for Rome.
September is the other excellent month alongside May — temperatures drop to comfortable, rains return to manageable, locals return from beaches and reopen their trattorias. Hotels at high pricing but slightly below July-August. The post-Ferragosto Rome is the locals' favorite season — restaurants and cultural life full again.
Travel score
Early autumn + Vendemmia wine harvest + Korean Chuseok
September Weather at a Glance
September averages 81°F / 27°C highs and 61°F / 16°C lows — early autumn. 6 rainy days, 60mm. Humidity 65% + 9 hours of sunshine. Daylight shortens to 13 hours. Year's 2nd-best season.
September Travel Advice
Long sleeves + cardigan + umbrella. September Vendemmia (grape harvest season) — Frascati + Castelli Romani wine villages + wine festivals. Estate Romana summer festival ends. Late September crowds shrink + value.
Flying In from Overseas
Korean Chuseok (varies by year, mid-September to early October) — Asia-Rome $1,050-1,680. Post-Chuseok value.
September Pricing Trends
Early autumn — Centro Storico 3-star $280-455/night.
Rome September Weather Stats
Avg High
27°C
Avg Low
16°C
Rainy Days
5
60mm total
Sunshine
7.5h
Daily avg
Humidity
64%
Comfortable
UV Index
7
High
Wind
10 km/h
Gusts 20
Sea Temp
23°C
Avg water temp
Crowds
Busy
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
24 μg/m³
PM10
36 μg/m³
Status
Moderate
Feels-Like Temperature & Wind
Feels like
Daytime
27°C
Nighttime
15°C
Humidity and wind affect how the actual temperature feels.
Wind
10 km/h
Max gust 20 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Comfortable temperatures with sunshine
- Locals back from beaches — full cultural life
- Photography conditions excellent
Cons
- Hotels still at high pricing
- Rain returns moderately
- Major sites still busy
September Events & Festivals
- RomaEuropa Festival (contemporary arts)
- International Vintage Car Rally (mid-September)
Rome in September — Full Picture
September is the other excellent month alongside May — temperatures drop to comfortable, rains return to manageable, locals return from beaches and reopen their trattorias. Hotels at high pricing but slightly below July-August. The post-Ferragosto Rome is the locals' favorite season — restaurants and cultural life full again.
What to Wear & What to Pack
Late summer. 27°C/16°C. Cotton t-shirts during the day, light cardigan for evenings. Rain returning — pack umbrella.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
19.7°C
9°C
7/mo
Summer (Jun·Jul·Aug)
30°C
18°C
3/mo
Autumn (Sep·Oct·Nov)
Current21.7°C
12°C
7.3/mo
Winter (Dec·Jan·Feb)
12.7°C
3.7°C
8/mo
Rome Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 12° | 3° | 8d·75mm | 4h | 75% | 1 | Quiet | Low season | |
| 13° | 4° | 7d·70mm | 4.5h | 73% | 2 | Quiet | Low season | |
| 16° | 6° | 7d·65mm | 5.5h | 70% | 4 | Moderate | Shoulder | |
| April (Best) | 19° | 9° | 8d·65mm | 6.5h | 70% | 6 | Busy | Peak |
| May (Best) | 24° | 12° | 6d·50mm | 8h | 65% | 8 | Busy | Peak |
| June (Best) | 28° | 16° | 4d·35mm | 9.5h | 60% | 9 | Very busy | Peak |
| 31° | 19° | 2d·20mm | 10.5h | 55% | 10 | Very busy | Peak | |
| 31° | 19° | 3d·25mm | 10h | 58% | 10 | Very busy | Peak | |
| September (Best) | 27° | 16° | 5d·60mm | 7.5h | 64% | 7 | Busy | Peak |
| October (Best) | 22° | 12° | 8d·95mm | 6h | 72% | 5 | Moderate | Shoulder |
| 16° | 8° | 9d·100mm | 4.5h | 78% | 2 | Quiet | Low season | |
| 13° | 4° | 9d·90mm | 4h | 78% | 1 | Moderate | Shoulder |
View Other Months
Rome September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Rome?
Rome in September is Excellent. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Rome in September?
Rome September averages a high of 27°C and a low of 16°C.
Does it rain much in Rome in September?
Rome September averages 60mm of rainfall over about 5 rainy days.
What should I wear in Rome in September?
Late summer. 27°C/16°C. Cotton t-shirts during the day, light cardigan for evenings. Rain returning — pack umbrella.
What time are sunrise and sunset in Rome in September?
Rome September sunrise is 06:45 and sunset is 19:30, with 12h 45m of daylight.
What's the air quality like in Rome in September?
Rome September air quality (AQI) averages 52, rated Moderate. PM2.5 averages 24μg/m³.
What activities are recommended in Rome in September?
In September, Rome is great for RomaEuropa Festival, Vintage Car Rally, Outdoor trattoria dinners.
Is September peak season in Rome?
Rome September crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Rome
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.