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 December 5, Friday | 18 | -11.0 12 | 719.2 28.31 958.85 958.85 | 756.1 29.77 1008.05 1008.05 | 0.0 0 0 0 | 96 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | Fog or ice fog in patches. | Fog or ice fog or thick haze. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | -11.3 12 | -7.6 18 | Stratocumulus cumulogenitus. | 40%. 4/10. 3 oktas | 300-600 984-1968 | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | No Cirrus, Cirrocumulus or Cirrostratus. | 30.0 18.6 | -11.5 11 | ||||||||
15 | -9.0 16 | 719.2 28.31 958.85 958.85 | 755.8 29.76 1007.65 1007.65 | 97 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | Mist. | Fog or ice fog or thick haze. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Stratocumulus cumulogenitus. | 40%. 4/10. 3 oktas | 300-600 984-1968 | Altocumulus translucidus at a single level. | No Cirrus, Cirrocumulus or Cirrostratus. | 30.0 18.6 | -9.4 15 | ||||||||||||
| December 4, Thursday | 21 | -6.0 21 | 721.1 28.39 961.39 961.39 | 757.4 29.82 1009.78 1009.78 | 0.0 0 0 0 | 99 | Wind blowing from the south-southwest | Calm | Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. | Drizzle, freezing, slight. | Drizzle. | Fog or ice fog or thick haze. | 5.0 3.1 | -6.1 21 | |||||||||||||||
18 | -5.1 23 | 721.1 28.39 961.39 961.39 | 757.3 29.81 1009.65 1009.65 | 100 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. | -8.1 17 | -1.7 29 | Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. | Less than 50 Less than 50 | -5.1 23 | |||||||||||||||||