Rome, Italy climate

Csa Hot-summer Mediterranean

Rome has a seasonal mild-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is August with an average daily high near 89°F, while the coldest is January averaging around 38°F at night. Precipitation totals about 32 inches a year and is strongly seasonal — November alone averages 4.5 inches while July barely receives 0.84 inches.

☀️ Summers

Hot

Highs near 89°F in August.

About 27 days a year above 90 °F

❄️ Winters

Chilly

Lows near 38°F in January.

About 14 freezing nights a year

🌧️ Rain

Moderate rainfall

About 32 in of rain a year.

Wettest in November

⛅ Sky & trend

Fairly sunny

More sun than cloud through the year.

+1.5 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Rome climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	54	55	61	66	74	82	88	89	80	72	62	55
Avg temp (°F)	46	47	52	57	65	72	77	78	71	63	55	48
Avg low (°F)	38	38	43	47	55	62	67	68	61	54	47	40
Precipitation (in)	2.7	2.7	2.3	3.0	2.3	1.3	0.8	1.3	2.8	3.7	4.5	4.0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	54	55	61	66	74	82
Avg temp (°F)	46	47	52	57	65	72
Avg low (°F)	38	38	43	47	55	62
Precipitation (in)	2.7	2.7	2.3	3.0	2.3	1.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	88	89	80	72	62	55
Avg temp (°F)	77	78	71	63	55	48
Avg low (°F)	67	68	61	54	47	40
Precipitation (in)	0.8	1.3	2.8	3.7	4.5	4.0

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	7	8	7	8	7	4	3	3	6	8	9	10
Days with high ≥ 90°F (days)	—	—	—	—	0.1	4	10	12	1	—	—	—
Days with low ≤ 32°F (days)	5	5	0.8	0.2	—	—	—	0.0	0.0	—	0.4	3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	7	8	7	8	7	4
Days with high ≥ 90°F (days)	—	—	—	—	0.1	4
Days with low ≤ 32°F (days)	5	5	0.8	0.2	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	3	3	6	8	9	10
Days with high ≥ 90°F (days)	10	12	1	—	—	—
Days with low ≤ 32°F (days)	—	0.0	0.0	—	0.4	3

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	58	54	54	53	46	34	21	23	40	49	58	57
Clear days (≤ 30% cloud)	7	8	8	9	12	16	23	22	14	11	7	8
Partly cloudy days (30–70%)	11	10	12	11	11	11	6	7	10	10	9	11
Cloudy days (≥ 70%)	13	11	11	11	8	4	2	2	6	10	13	12
Relative humidity (%)	81	78	76	72	68	62	55	54	64	73	80	81
Wind speed (mph)	4.9	5.3	5.6	5.5	5.1	4.9	5.1	4.9	5.0	5.0	5.4	5.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	58	54	54	53	46	34
Clear days (≤ 30% cloud)	7	8	8	9	12	16
Partly cloudy days (30–70%)	11	10	12	11	11	11
Cloudy days (≥ 70%)	13	11	11	11	8	4
Relative humidity (%)	81	78	76	72	68	62
Wind speed (mph)	4.9	5.3	5.6	5.5	5.1	4.9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	21	23	40	49	58	57
Clear days (≤ 30% cloud)	23	22	14	11	7	8
Partly cloudy days (30–70%)	6	7	10	10	9	11
Cloudy days (≥ 70%)	2	2	6	10	13	12
Relative humidity (%)	55	54	64	73	80	81
Wind speed (mph)	5.1	4.9	5.0	5.0	5.4	5.2

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Roma Ciampino, a weather station, about 13 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →