Weather archive on Grand Cayman

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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 September 20, Sunday	11	25.6 78	761.1 29.96 1014.72 1014.72	761.6 29.98 1015.38 1015.38		95	Wind blowing from the north	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas	Slight rain at time of observation. Thunderstorm during the preceding hour but not at time of observation.	Thunderstorm(s) with or without precipitation.	Rain.			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	50%. 5/10. 4 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		9.0 5.6	24.8 77
	10	25.5 78	761.6 29.98 1015.38 1015.38	762.1 30 1016.05 1016.05	2.3 0.09 3.07 3.07	96	Wind blowing from the north-northeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas	Thunderstorm, heavy, without hail, but with rain and/or snow at time of observation.	Thunderstorm(s) with or without precipitation.	Rain.			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	60%. 6/10. 5 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		1.2 0.8	24.8 77
	09			761.5 29.98 1015.25 1015.25			Wind blowing from the north	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, heavy at time of observation.	Thunderstorm(s) with or without precipitation.	Shower(s).			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		1.5 0.9
	08			761.0 29.96 1014.58 1014.58			Wind blowing from the north	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Thunderstorm, heavy, without hail, but with rain and/or snow at time of observation.	Thunderstorm(s) with or without precipitation.	Shower(s).			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			1.5 0.9
	07	27.5 82	759.3 29.89 1012.32 1012.32	759.8 29.91 1012.98 1012.98		85	Wind blowing from the east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas	Thunderstorm, heavy, without hail, but with rain and/or snow at time of observation.	Shower(s).		26.5 80	32.4 90	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			1.5 0.9	24.8 77	0.1	12
September 19, Saturday	19	28.9 84	760.0 29.92 1013.25 1013.25	760.5 29.94 1013.92 1013.92	0.8 0.03 1.07 1.07	80	Wind blowing from the north-northeast	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				27.2 81	31.9 89	Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	50%. 5/10. 4 oktas	300-600 984-1968	Altostratus translucidus.	Cirrostratus covering the whole sky.	30.0 18.6	25.1 77	No precipitation No precipitation	6
	18	29.5 85	759.7 29.91 1012.85 1012.85	760.2 29.93 1013.52 1013.52	0.5 0.02 0.67 0.67	75	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						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	50%. 5/10. 4 oktas	300-600 984-1968	Altostratus translucidus.	Cirrostratus covering the whole sky.	30.0 18.6	24.7 76
	17	30.0 86	759.2 29.89 1012.18 1012.18	759.7 29.91 1012.85 1012.85	-0.1 -0 -0.13 -0.13	73	Wind blowing from the north-northeast	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						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	40%. 4/10. 3 oktas	300-600 984-1968	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.	Cirrostratus covering the whole sky.	30.0 18.6	24.7 76
	16	29.7 85	759.2 29.89 1012.18 1012.18	759.7 29.91 1012.85 1012.85	-0.4 -0.02 -0.53 -0.53	77	Wind blowing from the north-northeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	60%. 6/10. 5 oktas	300-600 984-1968	Altostratus translucidus.	No Cirrus, Cirrocumulus or Cirrostratus.	30.0 18.6	25.2 77
	15	29.8 86	759.2 29.89 1012.18 1012.18	759.7 29.91 1012.85 1012.85	-1.0 -0.04 -1.33 -1.33	77	variable wind direction	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	30.0 18.6	25.4 78
	14	30.0 86	759.3 29.89 1012.32 1012.32	759.8 29.91 1012.98 1012.98	-1.1 -0.04 -1.47 -1.47	75	variable wind direction	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						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	50%. 5/10. 4 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	30.0 18.6	25.0 77
	13	29.3 85	759.6 29.91 1012.72 1012.72	760.1 29.93 1013.38 1013.38	-0.3 -0.01 -0.4 -0.4	79	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	State of sky on the whole unchanged.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.	27.2 81		Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	40%. 4/10. 3 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	30.0 18.6	25.2 77	1.0 0.04	6
	12	29.4 85	760.2 29.93 1013.52 1013.52	760.7 29.95 1014.18 1014.18	-0.4 -0.02 -0.53 -0.53	79	Wind blowing from the north-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	40%. 4/10. 3 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	30.0 18.6	25.4 78
	11	29.3 85	760.4 29.94 1013.78 1013.78	760.9 29.96 1014.45 1014.45	-0.4 -0.02 -0.53 -0.53	83	Wind blowing from the east-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 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.			Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	40%. 4/10. 3 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	30.0 18.6	26.2 79