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 | |
| 2026 October 13, Tuesday | 17:30 | 26.2 79 | 756.1 29.77 1008.05 1008.05 | 757.0 29.8 1009.25 1009.25 | 1.4 0.06 1.87 1.87 | 97 | Wind blowing from the east | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 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). | 33.9 93 | Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus. | 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. | No Cirrus, Cirrocumulus or Cirrostratus. | 8.0 5.0 | 25.6 78 | 47.0 1.85 | 9 | |||||||
14:30 | 32.9 91 | 754.7 29.71 1006.18 1006.18 | 755.6 29.75 1007.38 1007.38 | 65 | Wind blowing from the west-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Clouds generally forming or developing. | 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 fibratus, sometimes uncinus, not progressively invading the sky. | 20.0 12.4 | 25.6 78 | No precipitation No precipitation | 9 | ||||||||||
11:30 | 31.6 89 | 757.3 29.81 1009.65 1009.65 | 758.2 29.85 1010.85 1010.85 | -1.1 -0.04 -1.47 -1.47 | 64 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 40%. 4/10. 3 oktas | Clouds generally forming or developing. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 40%. 4/10. 3 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 23.9 75 | No precipitation No precipitation | 9 | |||||||||
08:30 | 27.5 82 | 758.4 29.86 1011.12 1011.12 | 759.3 29.89 1012.32 1012.32 | 87 | Wind blowing from the north-east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 50%. 5/10. 4 oktas | 24.5 76 | 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 | 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. | 15.0 9.3 | 25.2 77 | No precipitation No precipitation | 9 | ||||||||||||
05:30 | 24.7 76 | 757.4 29.82 1009.78 1009.78 | 758.3 29.85 1010.98 1010.98 | 0.3 0.01 0.4 0.4 | 98 | Wind blowing from the north-northeast | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 40%. 4/10. 3 oktas | Mist. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 20–30%. 2/10–3/10. 2 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 9.0 5.6 | 24.3 76 | No precipitation No precipitation | 9 | |||||||||
02:30 | 25.0 77 | 757.1 29.81 1009.38 1009.38 | 758.0 29.84 1010.58 1010.58 | 97 | Wind blowing from the north-east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | Mist. | 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. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | 2500 or more, or no clouds. 8202 or more, or no clouds. | 10.0 6.2 | 24.5 76 | No precipitation No precipitation | 9 | ||||||||||||||
| October 12, Monday | 23:30 | 25.4 78 | 758.2 29.85 1010.85 1010.85 | 759.1 29.89 1012.05 1012.05 | -0.3 -0.01 -0.4 -0.4 | 97 | Wind blowing from the east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 100%. 10/10. 8 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. | 2500 or more, or no clouds. 8202 or more, or no clouds. | 15.0 9.3 | 24.9 77 | No precipitation No precipitation | 9 | ||||||||||||
20:30 | 25.6 78 | 758.5 29.86 1011.25 1011.25 | 759.5 29.9 1012.58 1012.58 | 95 | Wind blowing from the east-northeast | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 100%. 10/10. 8 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 throughout the appropriate period. | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 40%. 4/10. 3 oktas | 300-600 984-1968 | Altostratus opacus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 18.0 11.2 | 24.7 76 | 12.0 0.47 | 9 | ||||||||||
17:30 | 28.5 83 | 756.0 29.76 1007.92 1007.92 | 756.9 29.8 1009.12 1009.12 | 0.8 0.03 1.07 1.07 | 90 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Thunderstorm, but no precipitation at the time of observation. | Shower(s). | Thunderstorm(s) with or without precipitation. | 26.2 79 | 33.0 91 | 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. | No Cirrus, Cirrocumulus or Cirrostratus. | 8.0 5.0 | 26.7 80 | 0.4 0.02 | 9 | |||||||