Weather archive in Chennai / Meenambakkam (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 | |
| 2025 October 21, Tuesday | 14:30 | 26.0 79 | 753.6 29.67 1004.72 1004.72 | 754.9 29.72 1006.45 1006.45 | -1.2 -0.05 -1.6 -1.6 | 95 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Rain, not freezing, intermittent, slight at time of observation. | Thunderstorm(s) with or without precipitation. | Rain. | 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. | 4.0 2.5 | 25.1 77 | |||||||||||
11:30 | 27.6 82 | 754.8 29.72 1006.32 1006.32 | 756.1 29.77 1008.05 1008.05 | -0.5 -0.02 -0.67 -0.67 | 92 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Mist. | Rain. | Drizzle. | Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus. | 50%. 5/10. 4 oktas | 300-600 984-1968 | Altostratus translucidus. | 4.0 2.5 | 26.2 79 | ||||||||||||
08:30 | 26.0 79 | 755.3 29.74 1006.98 1006.98 | 756.7 29.79 1008.85 1008.85 | 1.9 0.07 2.53 2.53 | 97 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Mist. | Thunderstorm(s) with or without precipitation. | Rain. | 25.2 77 | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 60%. 6/10. 5 oktas | 300-600 984-1968 | Altostratus translucidus. | 4.0 2.5 | 25.4 78 | 43.0 1.69 | 24 | |||||||||
05:30 | 25.6 78 | 753.4 29.66 1004.45 1004.45 | 754.8 29.72 1006.32 1006.32 | 95 | Wind blowing from the north-northwest | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Mist. | Rain. | Drizzle. | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 50%. 5/10. 4 oktas | 300-600 984-1968 | Altocumulus translucidus at a single level. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 2.0 1.2 | 24.7 76 | ||||||||||||
| October 20, Monday | 23:30 | 26.6 80 | 754.6 29.71 1006.05 1006.05 | 755.9 29.76 1007.78 1007.78 | -0.9 -0.04 -1.2 -1.2 | 94 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Rain, not freezing, intermittent, slight at time of observation. | Rain. | Drizzle. | Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels. | 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. | 2.0 1.2 | 25.5 78 | |||||||||||
20:30 | 26.6 80 | 755.5 29.74 1007.25 1007.25 | 756.7 29.79 1008.85 1008.85 | 1.6 0.06 2.13 2.13 | 87 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | 300-600 984-1968 | Altocumulus translucidus at a single level. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 2.0 1.2 | 24.3 76 | |||||||||||
17:30 | 27.8 82 | 753.9 29.68 1005.12 1005.12 | 755.2 29.73 1006.85 1006.85 | 0.4 0.02 0.53 0.53 | 81 | Wind blowing from the north-northeast | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 30.3 87 | Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | Altostratus opacus or Nimbostratus. | 10.0 6.2 | 24.3 76 | ||||||||||||||
14:30 | 29.0 84 | 753.5 29.67 1004.58 1004.58 | 754.8 29.72 1006.32 1006.32 | -1.8 -0.07 -2.4 -2.4 | 85 | Wind blowing from the north-northeast | 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 | Rain (not freezing) not falling as shower(s). | Rain. | Drizzle. | Stratocumulus cumulogenitus. | 60%. 6/10. 5 oktas | 600-1000 1968-3281 | 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. | No Cirrus, Cirrocumulus or Cirrostratus. | 10.0 6.2 | 26.2 79 | |||||||||||