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 October 1, Thursday	19	28.9 84	758.7 29.87 1011.52 1011.52	759.2 29.89 1012.18 1012.18	0.4 0.02 0.53 0.53	87	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					32.8 91	Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	50%. 5/10. 4 oktas	300-600 984-1968	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.6 80	4.0 0.16	6
	18	28.7 84	758.5 29.86 1011.25 1011.25	759.0 29.88 1011.92 1011.92	0.4 0.02 0.53 0.53	87	Wind blowing from the east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Clouds generally dissolving or becoming less developed.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	50%. 5/10. 4 oktas	300-600 984-1968	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.4 80
	17	31.0 88	758.3 29.85 1010.98 1010.98	758.8 29.87 1011.65 1011.65	-0.1 -0 -0.13 -0.13	71	Wind blowing from the east	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Rain shower(s), moderate or heavy.	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	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 cumulonimbogenitus.	30.0 18.6	25.2 77
	16	31.5 89	758.3 29.85 1010.98 1010.98	758.8 29.87 1011.65 1011.65	-0.7 -0.03 -0.93 -0.93	73	Wind blowing from the east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	40%. 4/10. 3 oktas	300-600 984-1968	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.2 79
	15	31.6 89	758.1 29.85 1010.72 1010.72	758.6 29.87 1011.38 1011.38	-1.4 -0.06 -1.87 -1.87	73	Wind blowing from the east-southeast	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	20–30%. 2/10–3/10. 2 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.1 79
	14	31.5 89	758.4 29.86 1011.12 1011.12	758.9 29.88 1011.78 1011.78	-1.5 -0.06 -2 -2	75	Wind blowing from the east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	20–30%. 2/10–3/10. 2 oktas	300-600 984-1968	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.	30.0 18.6	26.5 80
	13	31.7 89	759.0 29.88 1011.92 1011.92	759.5 29.9 1012.58 1012.58	-0.8 -0.03 -1.07 -1.07	75	Wind blowing from the east	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					32.8 91	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.7 80	No precipitation No precipitation	6
	12	31.5 89	759.5 29.9 1012.58 1012.58	760.0 29.92 1013.25 1013.25	-0.3 -0.01 -0.4 -0.4	73	Wind blowing from the east-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	20–30%. 2/10–3/10. 2 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.2 79
	11	31.2 88	759.9 29.92 1013.12 1013.12	760.4 29.94 1013.78 1013.78	0.8 0.03 1.07 1.07	75	Wind blowing from the east-southeast	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	20–30%. 2/10–3/10. 2 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.3 79
	10	31.4 89	759.8 29.91 1012.98 1012.98	760.3 29.93 1013.65 1013.65	1.0 0.04 1.33 1.33	75	Wind blowing from the east-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.4 80
	09	30.9 88	759.8 29.91 1012.98 1012.98	760.3 29.93 1013.65 1013.65		74	Wind blowing from the east-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	20–30%. 2/10–3/10. 2 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	25.8 78
	08	29.5 85	759.1 29.89 1012.05 1012.05	759.6 29.91 1012.72 1012.72		82	Wind blowing from the east-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						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	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.2 79
	07	28.6 83	758.8 29.87 1011.65 1011.65	759.3 29.89 1012.32 1012.32		87	Wind blowing from the east	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Cloud development not observed or not observable.	Shower(s).				Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	60%. 6/10. 5 oktas	300-600 984-1968	No Altocumulus, 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.	30.0 18.6	26.2 79	30.0 1.18	12
September 30, Wednesday	19	28.0 82	758.6 29.87 1011.38 1011.38	759.1 29.89 1012.05 1012.05	0.2 0.01 0.27 0.27	88	Wind blowing from the north-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas	Thunderstorm, but no precipitation at the time of observation.	Thunderstorm(s) with or without precipitation.	Cloud covering more than 1/2 of the sky throughout the appropriate period.		30.4 87	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.		30.0 18.6	25.8 78	No precipitation No precipitation	6