Weather archive in San Salvador / Ilopango (airport)
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| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2026 August 18, Tuesday | 18 | 23.4 74 | 708.3 27.89 944.32 944.32 | 1.6 0.06 2.13 2.13 | 89 | Wind blowing from the south-east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | Thunderstorm, slight or moderate, without hail, but with rain and/or snow at time of observation. | Thunderstorm(s) with or without precipitation. | Shower(s). | 22.1 72 | 33.0 91 | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 100%. 10/10. 8 oktas | 200-300 656-984 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 21.4 71 | 1.0 0.04 | 6 | Surface of ground moist. | ||||||
15 | 27.0 81 | 706.7 27.82 942.19 942.19 | -1.2 -0.05 -1.6 -1.6 | 77 | Wind blowing from the south-southeast | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Rain shower(s), slight. | Shower(s). | Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. | Stratocumulus other than Stratocumulus cumulogenitus. | 60%. 6/10. 5 oktas | 300-600 984-1968 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 30.0 18.6 | 22.7 73 | Surface of ground moist. | |||||||||||
12 | 31.4 89 | 707.9 27.87 943.79 943.79 | -0.8 -0.03 -1.07 -1.07 | 63 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 22.1 72 | 31.8 89 | Stratocumulus other than Stratocumulus cumulogenitus. | 20–30%. 2/10–3/10. 2 oktas | 600-1000 1968-3281 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 30.0 18.6 | 23.5 74 | Surface of ground moist. | ||||||||||||
09 | 27.1 81 | 708.7 27.9 944.86 944.86 | 64 | Wind blowing from the north-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 1000-1500 3281-4921 | Altocumulus translucidus at a single level. | Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus or both, but Cirrocumulus is predominant. | 30.0 18.6 | 19.6 67 | Surface of ground moist. | |||||||||||||||