Weather archive in Nagapattinam
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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 December 16, Tuesday | 23:30 | 25.4 78 | 758.1 29.85 1010.72 1010.72 | 758.9 29.88 1011.78 1011.78 | -0.3 -0.01 -0.4 -0.4 | 100 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Drizzle, not freezing, intermittent, slight at time of observation. | Rain. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | Altostratus opacus or Nimbostratus. | 2.0 1.2 | 25.4 78 | |||||||||||
20:30 | 26.0 79 | 758.4 29.86 1011.12 1011.12 | 759.2 29.89 1012.18 1012.18 | 1.5 0.06 2 2 | 97 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 50%. 5/10. 4 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. | 4.0 2.5 | 25.4 78 | |||||||||||||||
17:30 | 26.6 80 | 756.9 29.8 1009.12 1009.12 | 757.7 29.83 1010.18 1010.18 | 92 | Calm, no wind | Calm | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Clouds generally dissolving or becoming less developed. | Drizzle. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 28.2 83 | Stratocumulus other than Stratocumulus cumulogenitus. | 40%. 4/10. 3 oktas | 600-1000 1968-3281 | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 10.0 6.2 | 25.2 77 | |||||||||||
11:30 | 25.0 77 | 758.5 29.86 1011.25 1011.25 | 759.4 29.9 1012.45 1012.45 | -0.5 -0.02 -0.67 -0.67 | 100 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | State of sky on the whole unchanged. | Rain. | Drizzle. | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | Altostratus opacus or Nimbostratus. | 4.0 2.5 | 25.0 77 | ||||||||||||
08:30 | 24.0 75 | 759.0 29.88 1011.92 1011.92 | 759.8 29.91 1012.98 1012.98 | 1.8 0.07 2.4 2.4 | 95 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 22.6 73 | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 50%. 5/10. 4 oktas | 300-600 984-1968 | Altostratus opacus or Nimbostratus. | 4.0 2.5 | 23.1 74 | 0.4 0.02 | 24 | ||||||||||||
05:30 | 23.4 74 | 757.2 29.81 1009.52 1009.52 | 758.0 29.84 1010.58 1010.58 | 0.5 0.02 0.67 0.67 | 95 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains not falling as shower(s). | Rain. | Drizzle. | Stratocumulus other than Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | Altocumulus translucidus at a single level. | 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. | 4.0 2.5 | 22.5 73 | |||||||||||
02:30 | 25.0 77 | 756.7 29.79 1008.85 1008.85 | 757.6 29.83 1010.05 1010.05 | -1.5 -0.06 -2 -2 | 88 | Wind blowing from the north-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 100%. 10/10. 8 oktas | Drizzle, not freezing, intermittent, slight at time of observation. | 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 other than Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | Altocumulus translucidus at a single level. | 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. | 4.0 2.5 | 22.9 73 | |||||||||||