Climate of Rome

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Rome and its metropolitan area has a Mediterranean climate (Köppen climate classification: Csa),[1] with cool winters and warm to hot summers. According to Troll-Paffen climate classification, Rome has a warm-temperate subtropical climate (Warmgemäßigt-subtropisches Zonenklima).[2] According to Siegmund/Frankenberg climate classification, Rome has a subtropical climate.[3]

Daylight[edit]

Rome has one of the most optimal number of hours of daylight in Europe.[citation needed] Days in winter are not as short as in the northern part of the continent, the average hours of daylight in December, January and February is 10 hours[4] (for comparison: London[5] or Moscow[6] or Warsaw[7] – about 8 hours).

Average hours of daylight[4]
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
hours of light 10 11 12 13 15 15 15 14 12 11 10 9
hours of Twilight/Night 14 13 12 11 9 9 9 10 12 13 14 15

Sunshine[edit]

Sunshine duration is about 2,500 hours per year, from 111 – average 3.6 hours of sunshine per day in December to 332 – average 10.7 hours of sunshine per day in July.[8] This is the middling value for the southern half of Europe because in this part of the continent, sunshine duration varies from about 2,000 to about 3,000 hours per year. However, this is 60% larger value than in northern half of Europe, where sunshine duration is around 1500 hours per year.[citation needed] In winter Rome has about three times more sun duration than in the northern half of Europe.[citation needed]

Climate data for Rome
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean monthly sunshine hours 120.9 132.8 167.4 201.0 263.5 285.0 331.7 297.6 237.0 195.3 129.0 111.6 2,473
Mean daily sunshine hours 3.9 4.7 5.4 6.7 8.5 9.5 10.7 9.6 7.9 6.3 4.3 3.6 6.8
Percent possible sunshine 46 45 57 53 60 63 73 73 66 59 43 37 57
Source: Servizio Meteorologico (mean daily and monthly sunshine hours),[8] climatemps.com (percent possible sunshine)[9]

Sea temperature[edit]

Average sea temperature (Civitavecchia, north of Rome centre):[10]
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
14.2 °C (57.6 °F) 13.6 °C (56.5 °F) 14.0 °C (57.2 °F) 15.3 °C (59.5 °F) 18.7 °C (65.7 °F) 22.7 °C (72.9 °F) 24.4 °C (75.9 °F) 24.6 °C (76.3 °F) 23.5 °C (74.3 °F) 20.7 °C (69.3 °F) 18.6 °C (65.5 °F) 15.8 °C (60.4 °F) 18.9 °C (66.0 °F)
Average sea temperature (Tor San Lorenzo, south of Rome centre):[11]
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
14.5 °C (58.1 °F) 13.9 °C (57.0 °F) 14.1 °C (57.4 °F) 15.5 °C (59.9 °F) 18.8 °C (65.8 °F) 22.9 °C (73.2 °F) 24.7 °C (76.5 °F) 25.0 °C (77.0 °F) 24.0 °C (75.2 °F) 21.1 °C (70.0 °F) 19.0 °C (66.2 °F) 16.1 °C (61.0 °F) 19.1 °C (66.4 °F)

Climatic data[edit]

Climate data for Rome
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) 11.5
(52.7)
12.5
(54.5)
15.3
(59.5)
19.1
(66.4)
24.1
(75.4)
28.5
(83.3)
31.3
(88.3)
31.5
(88.7)
26.9
(80.4)
22.3
(72.1)
17.0
(62.6)
12.7
(54.9)
21.1
(70)
Daily mean °C (°F) 7.2
(45)
7.6
(45.7)
10.4
(50.7)
13.9
(57)
18.5
(65.3)
22.8
(73)
25.4
(77.7)
25.3
(77.5)
21.1
(70)
17.0
(62.6)
12.5
(54.5)
8.6
(47.5)
15.9
(60.6)
Average low °C (°F) 3.9
(39)
3.7
(38.7)
6.3
(43.3)
9.3
(48.7)
13.2
(55.8)
17.1
(62.8)
19.6
(67.3)
19.7
(67.5)
16.2
(61.2)
12.7
(54.9)
8.9
(48)
5.4
(41.7)
11.3
(52.3)
Mean monthly sunshine hours 127.1 148.4 179.8 210.0 272.8 300.0 350.3 316.2 237.0 204.6 138.0 120.9 2,605
Source: climatebase.ru[12] (2000-2011)
Climate data for Rome Ciampino Airport (altitude: 105 m sl, 13 km south-east from Colosseum satellite view)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 18.9
(66)
21.0
(69.8)
26.3
(79.3)
25.8
(78.4)
31.4
(88.5)
34.6
(94.3)
38.6
(101.5)
37.2
(99)
37.6
(99.7)
33.6
(92.5)
26.5
(79.7)
20.9
(69.6)
38.6
(101.5)
Average high °C (°F) 11.9
(53.4)
13.0
(55.4)
15.2
(59.4)
17.7
(63.9)
22.8
(73)
26.9
(80.4)
30.3
(86.5)
30.6
(87.1)
26.5
(79.7)
21.4
(70.5)
15.9
(60.6)
12.6
(54.7)
20.4
(68.7)
Daily mean °C (°F) 7.5
(45.5)
8.2
(46.8)
10.2
(50.4)
12.6
(54.7)
17.2
(63)
21.1
(70)
24.1
(75.4)
24.5
(76.1)
20.8
(69.4)
16.4
(61.5)
11.4
(52.5)
8.4
(47.1)
15.2
(59.4)
Average low °C (°F) 3.1
(37.6)
3.5
(38.3)
5.2
(41.4)
7.5
(45.5)
11.6
(52.9)
15.3
(59.5)
18.0
(64.4)
18.3
(64.9)
15.2
(59.4)
11.3
(52.3)
6.9
(44.4)
4.2
(39.6)
10.0
(50)
Record low °C (°F) −7.8
(18)
−4.0
(24.8)
−4.6
(23.7)
−0.9
(30.4)
3.0
(37.4)
8.8
(47.8)
10.9
(51.6)
10.5
(50.9)
7.8
(46)
1.9
(35.4)
−4.2
(24.4)
−4.7
(23.5)
−7.8
(18)
Average precipitation mm (inches) 66.9
(2.634)
73.3
(2.886)
57.8
(2.276)
80.5
(3.169)
52.8
(2.079)
34.0
(1.339)
19.2
(0.756)
36.8
(1.449)
73.3
(2.886)
113.3
(4.461)
115.4
(4.543)
81.0
(3.189)
804.3
(31.665)
Average precipitation days (≥ 1 mm) 7.0 7.6 7.6 9.2 6.2 4.3 2.1 3.3 6.2 8.2 9.7 8.0 79.4
Mean monthly sunshine hours 120.9 132.8 167.4 201.0 263.5 285.0 331.7 297.6 237.0 195.3 129.0 111.6 2,472.8
Source: Servizio Meteorologico,[8] data of sunshine hours[13] (1971–2000)
Climate data for Rome Fiumicino Airport (altitude: 15 m sl, 23 km west from Colosseum, near sea satellite view)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 18.9
(66)
21.0
(69.8)
26.3
(79.3)
25.8
(78.4)
31.4
(88.5)
34.6
(94.3)
38.6
(101.5)
37.2
(99)
37.6
(99.7)
33.6
(92.5)
26.5
(79.7)
20.9
(69.6)
38.6
(101.5)
Average high °C (°F) 13.4
(56.1)
13.9
(57)
15.6
(60.1)
17.8
(64)
22.2
(72)
25.9
(78.6)
28.8
(83.8)
29.4
(84.9)
26.2
(79.2)
22.1
(71.8)
17.2
(63)
14.2
(57.6)
20.6
(69.1)
Daily mean °C (°F) 8.6
(47.5)
9.0
(48.2)
10.7
(51.3)
12.9
(55.2)
17.1
(62.8)
20.8
(69.4)
23.6
(74.5)
24.1
(75.4)
21.1
(70)
17.1
(62.8)
12.4
(54.3)
9.6
(49.3)
15.6
(60.1)
Average low °C (°F) 3.8
(38.8)
4.1
(39.4)
5.7
(42.3)
8.0
(46.4)
11.9
(53.4)
15.6
(60.1)
18.3
(64.9)
18.8
(65.8)
16.0
(60.8)
12.1
(53.8)
7.7
(45.9)
5.0
(41)
10.6
(51.1)
Record low °C (°F) −7.8
(18)
−4.0
(24.8)
−4.6
(23.7)
−0.9
(30.4)
3.0
(37.4)
8.8
(47.8)
10.9
(51.6)
10.5
(50.9)
7.8
(46)
1.9
(35.4)
−4.2
(24.4)
−4.7
(23.5)
−7.8
(18)
Average precipitation mm (inches) 66.8
(2.63)
73.3
(2.886)
56.9
(2.24)
68.2
(2.685)
42.2
(1.661)
19.4
(0.764)
14.8
(0.583)
30.1
(1.185)
69.7
(2.744)
114.2
(4.496)
102.6
(4.039)
82.5
(3.248)
740.7
(29.161)
Average precipitation days (≥ 1 mm) 8.2 8.0 7.1 7.9 4.2 2.8 1.5 2.7 5.1 7.2 9.2 7.9 71.8
Source: Servizio Meteorologico[14] (1971–2000)
Climate data for Rome Urbe Airport (altitude: 24 m sl, 7 km north from Colosseum satellite view)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 20.2
(68.4)
23.6
(74.5)
27.0
(80.6)
28.3
(82.9)
33.1
(91.6)
36.8
(98.2)
40.0
(104)
39.6
(103.3)
37.6
(99.7)
31.4
(88.5)
26.0
(78.8)
22.8
(73)
40.0
(104)
Average high °C (°F) 12.6
(54.7)
14.0
(57.2)
16.5
(61.7)
18.9
(66)
23.9
(75)
28.1
(82.6)
31.5
(88.7)
31.7
(89.1)
27.5
(81.5)
22.4
(72.3)
16.5
(61.7)
13.2
(55.8)
21.4
(70.5)
Daily mean °C (°F) 7.4
(45.3)
8.4
(47.1)
10.4
(50.7)
12.9
(55.2)
17.3
(63.1)
21.2
(70.2)
24.2
(75.6)
24.5
(76.1)
20.9
(69.6)
16.4
(61.5)
11.2
(52.2)
8.2
(46.8)
15.3
(59.5)
Average low °C (°F) 2.1
(35.8)
2.7
(36.9)
4.3
(39.7)
6.8
(44.2)
10.8
(51.4)
14.3
(57.7)
16.9
(62.4)
17.3
(63.1)
14.3
(57.7)
10.5
(50.9)
5.8
(42.4)
3.1
(37.6)
9.1
(48.4)
Record low °C (°F) −9.8
(14.4)
−6.0
(21.2)
−9.0
(15.8)
−2.5
(27.5)
3.7
(38.7)
6.2
(43.2)
9.8
(49.6)
8.6
(47.5)
5.4
(41.7)
0.0
(32)
−7.2
(19)
−5.4
(22.3)
−9.8
(14.4)
Average precipitation mm (inches) 69.5
(2.736)
75.8
(2.984)
59.0
(2.323)
76.2
(3)
49.1
(1.933)
40.7
(1.602)
21.0
(0.827)
34.1
(1.343)
71.8
(2.827)
107.0
(4.213)
109.9
(4.327)
84.4
(3.323)
798.5
(31.437)
Average precipitation days (≥ 1 mm) 7.6 7.4 7.8 8.8 5.6 4.1 2.3 3.2 5.6 7.7 9.1 8.5 77.7
Source: Servizio Meteorologico[15] (1971–2000)

See also[edit]

References[edit]

  1. ^ "World Map of Köppen−Geiger Climate Classification". Archived from the original on 2010-09-06. 
  2. ^ Climatic map by Istituto Geografico De Agostini, according to Troll-Paffen climate classification Archived October 4, 2012, at the Wayback Machine.
  3. ^ Die Klimatypen der Erde, Pädagogische Hochschule in Heidelberg.
  4. ^ a b Rome Climate, weather2travel.com.
  5. ^ Weather2Travel.com. "London Climate: Monthly Weather Averages, UK". Weather2Travel.com. 
  6. ^ Weather2Travel.com. "Moscow Climate: Monthly Weather Averages, Russia (Europe)". Weather2Travel.com. 
  7. ^ Weather2Travel.com. "Warsaw Climate: Monthly Weather Averages, Poland". Weather2Travel.com. 
  8. ^ a b c "Tabelle climatiche 1971–2000 della stazione meteorologica di Roma-Ciampino Ponente dall'Atlante Climatico 1971–2000" (PDF). Servizio Meteorologico dell'Aeronautica Militare. Archived from the original (PDF) on July 27, 2017. 
  9. ^ Sunshine & Daylight Hours in Rome, Italy, climatemps.com.
  10. ^ Monthly Civitavecchia water temperature chart, seatemperature.org.
  11. ^ Monthly Tor San Lorenzo water temperature chart, seatemperature.org.
  12. ^ "Рим,Италия #16239". 
  13. ^ "Visualizzazione tabella CLINO della stazione / CLINO Averages Listed for the station Roma Ciampino". Archived from the original on July 27, 2017. Retrieved 13 June 2011. 
  14. ^ "Tabelle climatiche 1971–2000 della stazione meteorologica di Roma-Fiumicino Ponente dall'Atlante Climatico 1971–2000" (PDF). Servizio Meteorologico dell'Aeronautica Militare. Archived from the original (PDF) on 4 January 2016. 
  15. ^ "Tabelle climatiche 1971–2000 della stazione meteorologica di Roma-Urbe Ponente dall'Atlante Climatico 1971–2000" (PDF). Servizio Meteorologico dell'Aeronautica Militare. Archived from the original (PDF) on 4 January 2016.