Weather archive on Heiss Island

To receive explanations, hover over the appropriate heading

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 25, Tuesday	03	0.5 33	754.1 29.69 1005.38 1005.38	756.4 29.78 1008.45 1008.45	-0.2 -0.01 -0.27 -0.27	100	Wind blowing from the north	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			100%. 10/10. 8 oktas	Mist.	Fog or ice fog or thick haze.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratus nebulosus or Stratus fractus other than of bad weather, or both.	100%. 10/10. 8 oktas	200-300 656-984			2.1 1.3	0.5 33
2026 August 25, Tuesday	00	0.4 33	754.3 29.7 1005.65 1005.65	756.6 29.79 1008.72 1008.72		100	Wind blowing from the west	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	Mist.	Fog or ice fog or thick haze.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratus nebulosus or Stratus fractus other than of bad weather, or both.	70 – 80%. 7/10 – 8/10. 6 oktas	200-300 656-984	Altocumulus translucidus at a single level.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	2.3 1.4	0.4 33
August 24, Monday	21	0.8 33	754.9 29.72 1006.45 1006.45	757.2 29.81 1009.52 1009.52	-0.6 -0.02 -0.8 -0.8	99	Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 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.	Fog or ice fog, sky invisible, no appreciable change during the preceding hour.	Fog or ice fog or thick haze.	Cloud covering more than 1/2 of the sky throughout the appropriate period.								0.4 0.3	0.7 33
	18	1.0 34	755.5 29.74 1007.25 1007.25	757.9 29.84 1010.45 1010.45	-0.5 -0.02 -0.67 -0.67	97	Calm, no wind	Calm			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					1.6 35	Stratocumulus other than Stratocumulus cumulogenitus.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	20.0 12.4	0.6 33
	15	1.3 34	756.0 29.76 1007.92 1007.92	758.3 29.85 1010.98 1010.98	-0.6 -0.02 -0.8 -0.8	98	Calm, no wind	Calm			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	State of sky on the whole unchanged.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	Altocumulus translucidus at a single level.	No Cirrus, Cirrocumulus or Cirrostratus.	20.0 12.4	1.0 34
	12	1.0 34	756.6 29.79 1008.72 1008.72	758.9 29.88 1011.78 1011.78	-0.6 -0.02 -0.8 -0.8	99	Wind blowing from the south-east	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	State of sky on the whole unchanged.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	50%. 5/10. 4 oktas	300-600 984-1968	Altocumulus translucidus at a single level.	No Cirrus, Cirrocumulus or Cirrostratus.	20.0 12.4	0.9 34
	09	0.3 33	757.2 29.81 1009.52 1009.52	759.5 29.9 1012.58 1012.58	-1.0 -0.04 -1.33 -1.33	99	Wind blowing from the south-east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas	State of sky on the whole unchanged.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	100%. 10/10. 8 oktas	300-600 984-1968			20.0 12.4	0.2 32
	06	0.1 32	758.2 29.85 1010.85 1010.85	760.6 29.94 1014.05 1014.05		99	Wind blowing from the south-east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas	Snow shower(s), slight.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.	0.1 32		Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	100%. 10/10. 8 oktas	300-600 984-1968			3.0 1.9	0.0 32	2.0 0.08	12			Compact or wet snow (with or without ice) covering less than one-half of the ground.	Snow cover, not continuous.
	03	0.2 32	759.1 29.89 1012.05 1012.05	761.4 29.98 1015.12 1015.12	-0.7 -0.03 -0.93 -0.93	99	Wind blowing from the east-southeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas	Snow shower(s), slight.	Shower(s).	Fog or ice fog or thick haze.			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	100%. 10/10. 8 oktas	300-600 984-1968			12.0 7.5	0.1 32