Weather archive in Grimsstadir
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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 November 9, Sunday | 18 | 0.2 32 | 725.7 28.57 967.52 967.52 | 761.4 29.98 1015.12 1015.12 | -0.3 -0.01 -0.4 -0.4 | 88 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | -0.4 31 | 1.2 34 | Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus. | 50%. 5/10. 4 oktas | 300-600 984-1968 | Altostratus opacus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon. | 40.0 24.9 | -1.6 29 | |||||||||||
15 | 0.5 33 | 726.0 28.58 967.92 967.92 | 761.7 29.99 1015.52 1015.52 | -1.1 -0.04 -1.47 -1.47 | 91 | Wind blowing from the east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | Precipitation within sight, reaching the ground or the surface of the sea, but distant, i.e. estimated to be more than 5 km from the station. | 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 calvus, with or without Cumulus, Stratocumulus or Stratus. | 60%. 6/10. 5 oktas | 300-600 984-1968 | Altostratus opacus or Nimbostratus. | 14.0 8.7 | -0.8 31 | ||||||||||||
12 | 0.9 34 | 727.1 28.63 969.39 969.39 | 762.7 30.03 1016.85 1016.85 | -0.1 -0 -0.13 -0.13 | 83 | Wind blowing from the north-east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Stratocumulus cumulogenitus. | 50%. 5/10. 4 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, but the continuous veil does not reach 45 degrees above the horizon. | 60.0 37.3 | -1.7 29 | ||||||||||||||
09 | 0.0 32 | 727.2 28.63 969.52 969.52 | 763.0 30.04 1017.25 1017.25 | 86 | Wind blowing from the east-southeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 0.4 33 | Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels. | 40%. 4/10. 3 oktas | 300-600 984-1968 | Altostratus opacus or Nimbostratus. | 50.0 31.1 | -2.1 28 | |||||||||||||||