🔎 Weather for a date or period
Actual day-by-day weather for the selected period (ERA5). Up to 1 year.
📆 On this day before
Data for previous years is being prepared.
🏆 Hottest and coldest day in Rome (over the full observation series)
+40°
Hottest day
July 18, 2023
-12°
Coldest day
January 23, 1945
🗓 Monthly climate in Rome (10-year normals)
| Month | Day | Night | Precip |
|---|---|---|---|
| January | +12° | +4° | 66 mm |
| February | +14° | +5° | 73 mm |
| March | +16° | +7° | 89 mm |
| April | +20° | +9° | 59 mm |
| May | +23° | +13° | 78 mm |
| June | +29° | +18° | 34 mm |
| July | +33° | +21° | 16 mm |
| August | +33° | +21° | 30 mm |
| September | +27° | +17° | 90 mm |
| October | +23° | +14° | 105 mm |
| November | +17° | +10° | 141 mm |
| December | +14° | +5° | 94 mm |
🕰 Weather in Rome September 21 in past years
+32°
Heat record · 1947
+10°
Cold record · 2017
📜
This day in history. The hottest September 21 in Rome was in 1947 (+32°), the coldest in 2017 (+10°). 86 years of observations. Normal for September: day +27°, night +17°.
📒 For school and home
Weather diary
ready-made observation table for a month — for school
Weather for the month
September calendar: forecast + climate normal
City water
Tyrrhenian Sea +26° — where to swim
FAQ about the weather archive in Rome ❓
What was the weather in Rome on a specific date?
Pick a date or range in the form above — we show actual day-by-day weather (ERA5 reanalysis, up to a year back). For today’s date in past years see “On this day before”.
Hottest and coldest day in the history in Rome?
Heat record — +40° (July 18, 2023), cold record — -12° (January 23, 1945). Observations over the full available series.
What's the typical weather in Rome in September?
On average +27° by day, +17° at night, precipitation about 90 mm (ERA5 climate normal).
Since what year is the weather archive in Rome kept?
Climate normals and records come from the ERA5 reanalysis. Actual day-by-day weather is available for the last year.
Climate and weather archive in Rome
Monthly climate normals in Rome (average day and night temperatures, precipitation) are computed from the ERA5 reanalysis. The observation archive accrues from launch. Data: Open-Meteo (ERA5).