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 | |
| 2021 September 24, Friday | 18 | 25.3 78 | 707.1 27.84 942.72 942.72 | -0.2 -0.01 -0.27 -0.27 | 100 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 60%. 6/10. 5 oktas | 21.4 71 | 30.4 87 | Stratocumulus cumulogenitus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 200-300 656-984 | Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 30.0 18.6 | 25.3 78 | Surface of ground moist. | |||||||||||
15 | 707.3 27.85 942.99 942.99 | 757.9 29.84 1010.45 1010.45 | -1.5 -0.06 -2 -2 | Wind blowing from the north-northeast | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 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 | 19.0 66 | Dry (without cracks, no appreciable amount of dust or loose sand) | |||||||||||||||
12 | 28.5 83 | 708.8 27.91 944.99 944.99 | -0.4 -0.02 -0.53 -0.53 | 65 | Wind blowing from the east-northeast | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | 21.4 71 | 29.4 85 | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 50%. 5/10. 4 oktas | 1000-1500 3281-4921 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 30.0 18.6 | 21.4 71 | Surface of ground moist. | ||||||||||||
09 | 25.4 78 | 709.2 27.92 945.52 945.52 | 78 | Wind blowing from the north | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 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 | 600-1000 1968-3281 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 30.0 18.6 | 21.2 70 | Surface of ground moist. | |||||||||||||||
| September 23, Thursday | 18 | 25.3 78 | 706.8 27.83 942.32 942.32 | 0.5 0.02 0.67 0.67 | 86 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 21.8 71 | 29.4 85 | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 20–30%. 2/10–3/10. 2 oktas | 200-300 656-984 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus. | 30.0 18.6 | 22.8 73 | Surface of ground moist. | |||||||||||