Weather archive in Porto Alegre (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 August 19, Wednesday | 03 | 18.5 65 | 762.0 30 1015.92 1015.92 | 762.8 30.03 1016.98 1016.98 | -0.2 -0.01 -0.27 -0.27 | 97 | Wind blowing from the south-east | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 100%. 10/10. 8 oktas | 200-300 656-984 | 20.0 12.4 | 18.0 64 | |||||||||||||||
00 | 19.2 67 | 762.2 30.01 1016.18 1016.18 | 763.0 30.04 1017.25 1017.25 | 100 | 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 | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 100%. 10/10. 8 oktas | 100-200 328-656 | 20.0 12.4 | 19.2 67 | |||||||||||||||||
| August 18, Tuesday | 21 | 20.0 68 | 761.0 29.96 1014.58 1014.58 | 761.8 29.99 1015.65 1015.65 | 1.2 0.05 1.6 1.6 | 97 | Wind blowing from the west-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 25.5 78 | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 19.5 67 | ||||||||||||
18 | 23.2 74 | 759.8 29.91 1012.98 1012.98 | 760.6 29.94 1014.05 1014.05 | 87 | Wind blowing from the south-east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 1000-1500 3281-4921 | 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. | 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. | 20.0 12.4 | 21.0 70 | |||||||||||||||
15 | 25.1 77 | 759.5 29.9 1012.58 1012.58 | 760.3 29.93 1013.65 1013.65 | -0.8 -0.03 -1.07 -1.07 | 75 | Wind blowing from the east | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 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. | 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. | 20.0 12.4 | 20.4 69 | ||||||||||||||
12 | 23.4 74 | 760.3 29.93 1013.65 1013.65 | 761.2 29.97 1014.85 1014.85 | 80 | Wind blowing from the south-southeast | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 20–30%. 2/10–3/10. 2 oktas | 600-1000 1968-3281 | 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 | 19.8 68 | |||||||||||||||
09 | 18.3 65 | 761.1 29.96 1014.72 1014.72 | 761.9 30 1015.78 1015.78 | 0.8 0.03 1.07 1.07 | 100 | Wind blowing from the east-northeast | 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). | Drizzle. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 17.7 64 | Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus. | 100%. 10/10. 8 oktas | 100-200 328-656 | 4.0 2.5 | 18.3 65 | Trace of precipitation Trace of precipitation | 24 | ||||||||||
06 | 18.1 65 | 760.3 29.93 1013.65 1013.65 | 761.2 29.97 1014.85 1014.85 | 98 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 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 more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 100%. 10/10. 8 oktas | 200-300 656-984 | 9.0 5.6 | 17.8 64 | ||||||||||||||
03 | 17.7 64 | 757.9 29.84 1010.45 1010.45 | 758.7 29.87 1011.52 1011.52 | -0.3 -0.01 -0.4 -0.4 | 100 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 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. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus at a single level. | No Cirrus, Cirrocumulus or Cirrostratus. | 4.0 2.5 | 17.7 64 | |||||||||||
