Weather archive in Osa
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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 January 2, Friday | 20 | -15.9 3 | 759.0 29.88 1011.92 1011.92 | 768.8 30.27 1024.98 1024.98 | 87 | Calm, no wind | Calm | 20–30%. 2/10–3/10. 2 oktas | Clouds generally dissolving or becoming less developed. | Snow and/or other types of solid precipitation | 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. | -9.2 15 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | -17.6 0 | 0.5 0.02 | 12 | ||||||||
14 | -9.6 15 | 757.5 29.82 1009.92 1009.92 | 767.0 30.2 1022.58 1022.58 | 77 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Continuous fall of snowflakes, moderate at time of observation. | Snow and/or other types of solid precipitation | Cloud covering more than 1/2 of the sky throughout the appropriate period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 70 – 80%. 7/10 – 8/10. 6 oktas | 2000-2500 6562-8202 | 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. | 4.0 2.5 | -12.9 9 | ||||||||||||
08 | 754.2 29.69 1005.52 1005.52 | 763.7 30.07 1018.18 1018.18 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | Continuous fall of snowflakes, slight at time of observation. | Snow and/or other types of solid precipitation | Cloud covering more than 1/2 of the sky throughout the appropriate period. | -10.5 13 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 100%. 10/10. 8 oktas | 2000-2500 6562-8202 | Altostratus opacus or Nimbostratus. | 4.0 2.5 | -13.0 9 | 0.5 0.02 | 12 | Even layer of loose dry snow covering ground completely. | 32 12.6 | ||||||||||
02 | -9.5 15 | 750.4 29.54 1000.45 1000.45 | 759.9 29.92 1013.12 1013.12 | 80 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | -12.4 10 | ||||||||||||||||||||||
| January 1, Thursday | 20 | -8.9 16 | 745.3 29.34 993.65 993.65 | 754.6 29.71 1006.05 1006.05 | 86 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Continuous fall of snowflakes, slight at time of observation. | Snow and/or other types of solid precipitation | Cloud covering more than 1/2 of the sky throughout the appropriate period. | -8.2 17 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 100%. 10/10. 8 oktas | 2000-2500 6562-8202 | Altostratus translucidus. | 4.0 2.5 | -10.9 12 | Trace of precipitation Trace of precipitation | 12 | |||||||||