Weather in Rome in August

Daylight on the 15th: 13 h 52 min
Average high: 33 °C (91 °F)
Average low: 21 °C (70 °F)
Precipitation: 26 mm

In August, the area around Rome averages daytime highs of 33 °C (91 °F) and night-time lows of 21 °C (70 °F). Days are hot; plan outdoor sightseeing for the morning and evening.

Temperature

Compared with July, August is warmer by 1 °C in daytime highs, and September is cooler by 5 °C than August. The daily average is 27 °C (80 °F).

August is the warmest month of the year.

Precipitation, humidity and wind

Precipitation averages about 26 mm over the month, with 4 days of at least 1 mm. Precipitation is rare in this month.

August is the driest month of the year.

Relative humidity averages 53 % and wind at 2 m about 2.2 m/s.

Daylight

On 15 August the sun rises at 06:18 and sets at 20:11 local time, for 13 h 52 min of daylight, 63 minutes less than a month earlier.

About these numbers

The figures are 2011-2020 averages for the grid cell around Rome from the NASA POWER project, a model based data set. They describe the area rather than one weather station, and a single year can differ.

Month by month

Month	High	Low	Precipitation
January	12 °C	4 °C	71 mm
February	13 °C	4 °C	90 mm
March	16 °C	6 °C	79 mm
April	20 °C	9 °C	53 mm
May	23 °C	12 °C	59 mm
June	29 °C	17 °C	37 mm
July	32 °C	20 °C	32 mm
August	33 °C	21 °C	26 mm
September	28 °C	17 °C	72 mm
October	23 °C	13 °C	88 mm
November	17 °C	9 °C	115 mm
December	13 °C	5 °C	75 mm

Questions

How warm is Rome in August?

Average highs of 33 °C (91 °F) and lows of 21 °C (70 °F) (2011-2020 averages).

Does it rain a lot in Rome in August?

About 26 mm over the month, on 4 days with at least 1 mm.

Travel data for Italy

Sources

NASA Langley Research Center POWER Project, funded through the NASA Earth Science Directorate Applied Science Program (2026-09-22)
Computed from the city coordinates with the NOAA solar position equations
IANA tz database
Wikidata, CC0 (2026-09-22)