yearsofweather

Rome in September:
comfortably warm,

Rome, Italy · Records from 2006 to 2025. Not a forecast.

Mean high27°Hottest day 34.5° (2024)
Mean low16°Coldest night 7.6° (2008)
Rain days5 days1-10 by year
Rainfall66mmDaylight 13.2 → 11.8 h
Rome's 12 months iBest: May, September and October
Trip types Sightseeing on foot Goodmild and mostly dry
Humidity69%2 muggy days
Clear days13 days4 overcast days
Mean wind7 km/hRarely windy
Sunrise / sunset (15th)06:49 / 19:21Daylight 13.2 → 11.8 h

Rome in September

From mid-September the heat breaks, locals return and the city comes back to life. Evenings are pleasant for walking. The first autumn storms can arrive suddenly, so keep a compact umbrella handy.

Afternoons reached 27°C and nights settled at 16°C, warm enough to linger over lunch outdoors. The temperature swung about 11°C within a single day, so midday and evening called for different clothes. Showers came now and then, about 5 rain days in all, and most of the month stayed dry. A visitor in 2011 met 1 rain day; one in 2012 met 10. The average of 5 hid that gap.

About 5 days a month still climbed past 30°C, the ones where you looked for shade. The warmest year was 2011, with highs averaging 29.3°C, 2.4°C above normal.

Date by date i

‹ August September 2027 October ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-4rain on 18% of days29° 18°
5-11rain on 11% of days29° 18°
12-18rain on 20% of days27° 17°
19-25rain on 26% of days25° 15°
26-30rain on 13% of days25° 14°

0-5/206-8/209-11/2012-20/20

1-4rain on 18% of days29° 18°
5-11rain on 11% of days29° 18°
12-18rain on 20% of days27° 17°
19-25rain on 26% of days25° 15°
26-30rain on 13% of days25° 14°
Tap another date to change

2006none
2007none
200816mm
2009none
20106mm
201116mm
20124mm
2013none
2014none
2015none
2016none
201724mm
201810mm
20194mm
2020none
20216mm
2022none
2023none
20244mm
2025none
Holidays in September (2027)
  • September 6 Labor Day

1 US holidays (flights fill up)

Day by day temperature i

12°20°28°36° 1815222930

Mean high Mean low Coldest to warmest high in 20 years

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
0 d 5 d
2007
0 d 5 d
2008
0 d 2 d
2009
0 d 9 d
2010
1 d 4 d
2011
0 d 1 d
2012
1 d 10 d
2013
0 d 4 d
2014
2 d 5 d
2015
1 d 3 d
2016
3 d 6 d
2017
2 d 8 d
2018
1 d 2 d
2019
0 d 7 d
2020
1 d 9 d
2021
0 d 3 d
2022
1 d 9 d
2023
0 d 2 d
2024
2 d 9 d
2025
1 d 5 d
Years with rain
Tap a date to start, tap another to end. Each cell is that date in one year.
'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
of 20
4
3
3
4
4
0
1
1
2
4
4
2
4
3
4
6
6
3
9
2
3
5
6
4
8
3
3
2
2
3
Rain days on trip
00001010213210101021

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2011 had 1 rain day, 2012 had 10.

Rome through the year

MonthHighLowRain daysRainfall
January 12°4°9 days80mm
February 13°4°9 days73mm
March 16°6°8 days70mm
April 19°9°6 days51mm
MayGood 24°13°7 days71mm
June 29°17°4 days29mm
July 31°20°2 days17mm
August 32°20°2 days32mm
SeptemberGood 27°16°5 days66mm
OctoberGood 23°13°7 days70mm
November 17°9°8 days105mm
December 13°5°9 days98mm

Common questions

Does it rain a lot in Rome in September?

Over the past 20 years September averaged 5 rain days (1 mm or more) out of 30. Individual years ran from 1 in the driest to 10 in the wettest.

What should I wear in Rome in September?

Days averaged 27°C and nights 16°C. Pack a compact umbrella, a light layer for the evenings, T-shirts, and sunscreen plus a hat.

Is September a good time to visit Rome?

On warmth and rain days alone, Rome's easiest months were May, September and October. September ranked 3 of 12, close to the top.

How many clear days does Rome get in September?

About 13 clear days (under 30% cloud on average) and 4 overcast days (80% or more).