Theclimate ofSaudi Arabia is marked by high temperatures during the day and low temperatures at night. The country follows the pattern of thedesert climate, with the exception of the southwest, which features asubtropical highland climate and asemi-desert climate.
| Climate data forJeddah (1985-2010) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 33.0 (91.4) | 35.0 (95.0) | 38.0 (100.4) | 42.0 (107.6) | 46.0 (114.8) | 47.5 (117.5) | 48.4 (119.1) | 49.8 (121.6) | 46.8 (116.2) | 42.5 (108.5) | 38.0 (100.4) | 32.7 (90.9) | 49.8 (121.6) |
| Mean daily maximum °C (°F) | 20.2 (68.4) | 23.4 (74.1) | 27.7 (81.9) | 33.4 (92.1) | 39.4 (102.9) | 42.5 (108.5) | 43.5 (110.3) | 43.6 (110.5) | 40.4 (104.7) | 35.3 (95.5) | 27.8 (82.0) | 22.2 (72.0) | 33.3 (91.9) |
| Daily mean °C (°F) | 14.4 (57.9) | 17.3 (63.1) | 21.4 (70.5) | 26.9 (80.4) | 32.9 (91.2) | 35.7 (96.3) | 36.8 (98.2) | 36.7 (98.1) | 33.5 (92.3) | 28.4 (83.1) | 21.5 (70.7) | 16.3 (61.3) | 26.8 (80.3) |
| Mean daily minimum °C (°F) | 9.0 (48.2) | 11.2 (52.2) | 15.2 (59.4) | 20.4 (68.7) | 25.9 (78.6) | 28.0 (82.4) | 29.3 (84.7) | 29.2 (84.6) | 25.9 (78.6) | 21.2 (70.2) | 15.5 (59.9) | 10.6 (51.1) | 20.1 (68.2) |
| Record low °C (°F) | −5.4 (22.3) | −3.3 (26.1) | 2.4 (36.3) | 8.9 (48.0) | 15.7 (60.3) | 19.8 (67.6) | 20.0 (68.0) | 20.0 (68.0) | 14.4 (57.9) | 8.9 (48.0) | 4.5 (40.1) | −2.0 (28.4) | −5.4 (22.3) |
| Averageprecipitation mm (inches) | 12.5 (0.49) | 8.0 (0.31) | 24.0 (0.94) | 28.0 (1.10) | 4.9 (0.19) | 3.0 (0.12) | 3.7 (0.15) | 4.0 (0.16) | 0.1 (0.00) | 0.8 (0.03) | 8.7 (0.34) | 14.6 (0.57) | 112.3 (4.4) |
| Average rainy days | 6.1 | 4.3 | 9.4 | 11.3 | 3.3 | 0.0 | 0.1 | 0.2 | 0.0 | 0.5 | 3.3 | 6.3 | 44.8 |
| Averagerelative humidity (%) | 47 | 36 | 32 | 28 | 17 | 11 | 10 | 12 | 14 | 20 | 36 | 47 | 26 |
| Averagedew point °C (°F) | 2 (36) | 1 (34) | 2 (36) | 4 (39) | 3 (37) | −1 (30) | 0 (32) | 2 (36) | 2 (36) | 2 (36) | 4 (39) | 3 (37) | 2 (36) |
| Mean monthlysunshine hours | 212.4 | 226.6 | 219.8 | 242.3 | 287.7 | 328.2 | 332.1 | 309.2 | 271.6 | 311.4 | 269.2 | 214.3 | 3,224.8 |
| Percentagepossible sunshine | 63 | 71 | 59 | 63 | 70 | 80 | 80 | 77 | 74 | 87 | 82 | 65 | 72 |
| Averageultraviolet index | 7 | 9 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 10 | 7 | 6 | 10 |
| Source 1:"Jeddah Regional Climate Centre South West Asia". Archived fromthe original on 11 December 2016. Retrieved27 May 2015.[1] | |||||||||||||
| Source 2: Time and Date (dewpoints, 1985-2015)[2] Weather2Travel for ultraviolet[3] | |||||||||||||
{{cite web}}: CS1 maint: numeric names: authors list (link)Climate change by country | |
|---|---|
| Africa | |
| Americas | |
| Asia | |
| Europe | |
| Oceania | |
| Polar regions | |
| Other regions | |
 | This article aboutatmospheric science is astub. You can help Wikipedia byexpanding it. |
