Weather archive in Katunayake / Bandaranaike (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 April 27, Sunday | 11:30 | 29.7 85 | 757.6 29.83 1010.05 1010.05 | 758.5 29.86 1011.25 1011.25 | 0.1 0 0.13 0.13 | 75 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. 4/10. 3 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 24.9 77 | No precipitation No precipitation | 9 | |||||||||||
08:30 | 29.0 84 | 757.5 29.82 1009.92 1009.92 | 758.4 29.86 1011.12 1011.12 | 80 | Wind blowing from the west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | State of sky on the whole unchanged. | Thunderstorm(s) with or without precipitation. | Thunderstorm(s) with or without precipitation. | 25.5 78 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 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. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 25.3 78 | No precipitation No precipitation | 9 | |||||||||
05:30 | 25.8 78 | 756.2 29.77 1008.18 1008.18 | 757.1 29.81 1009.38 1009.38 | 94 | Wind blowing from the south-east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Thunderstorm, but no precipitation at the time of observation. | Thunderstorm(s) with or without precipitation. | Shower(s). | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 10.0 6.2 | 24.7 76 | Trace of precipitation Trace of precipitation | 9 | ||||||||||
| April 26, Saturday | 23:30 | 25.9 79 | 757.0 29.8 1009.25 1009.25 | 757.9 29.84 1010.45 1010.45 | 88 | Wind blowing from the east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 60%. 6/10. 5 oktas | Lightning visible, no thunder heard. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 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. | 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 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 20.0 12.4 | 23.7 75 | No precipitation No precipitation | 9 | |||||||||
17:30 | 31.1 88 | 755.5 29.74 1007.25 1007.25 | 756.4 29.78 1008.45 1008.45 | 74 | Wind blowing from the west-southwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | State of sky on the whole unchanged. | 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. | 25.0 77 | 33.0 91 | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 70 – 80%. 7/10 – 8/10. 6 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 20.0 12.4 | 25.9 79 | No precipitation No precipitation | 9 | ||||||||
11:30 | 32.9 91 | 756.6 29.79 1008.72 1008.72 | 757.5 29.82 1009.92 1009.92 | 67 | Wind blowing from the south-west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 60%. 6/10. 5 oktas | State of sky on the whole unchanged. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 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. | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 50%. 5/10. 4 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 20.0 12.4 | 25.9 79 | No precipitation No precipitation | 9 | ||||||||||