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 17, Thursday	08	29.6 85	761.2 29.97 1014.85 1014.85	761.7 29.99 1015.52 1015.52		82	Wind blowing from the north-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	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, 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	26.3 79
2026 September 17, Thursday	07	27.3 81	760.8 29.95 1014.32 1014.32	761.3 29.97 1014.98 1014.98		94	Wind blowing from the east-northeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			40%. 4/10. 3 oktas	Cloud development not observed or not observable.	Shower(s).		25.5 78	34.1 93	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	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	4.0 0.16	12
September 16, Wednesday	19	29.8 86	761.4 29.98 1015.12 1015.12	761.9 30 1015.78 1015.78	0.7 0.03 0.93 0.93	76	Wind blowing from the east-northeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 oktas				28.5 83	34.1 93	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	Altocumulus translucidus at a single level.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	25.2 77	No precipitation No precipitation	6
	18	31.3 88	761.1 29.96 1014.72 1014.72	761.6 29.98 1015.38 1015.38	0.2 0.01 0.27 0.27	74	Wind blowing from the east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			60%. 6/10. 5 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	40%. 4/10. 3 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.1 79
	17	31.5 89	760.7 29.95 1014.18 1014.18	761.2 29.97 1014.85 1014.85	-0.5 -0.02 -0.67 -0.67	72	Wind blowing from the north-northeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 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	25.9 79
	16	31.0 88	760.7 29.95 1014.18 1014.18	761.2 29.97 1014.85 1014.85	-0.9 -0.04 -1.2 -1.2	72	Wind blowing from the east-northeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 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	25.3 78
	15	32.0 90	760.9 29.96 1014.45 1014.45	761.4 29.98 1015.12 1015.12	-1.0 -0.04 -1.33 -1.33	71	Wind blowing from the east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			60%. 6/10. 5 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	26.0 79
	14	32.4 90	761.2 29.97 1014.85 1014.85	761.7 29.99 1015.52 1015.52	-1.0 -0.04 -1.33 -1.33	70	Wind blowing from the east-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	Altostratus opacus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.3 79
	13	32.0 90	761.6 29.98 1015.38 1015.38	762.1 30 1016.05 1016.05	-0.8 -0.03 -1.07 -1.07	71	Wind blowing from the east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 oktas	State of sky on the whole unchanged.	Thunderstorm(s) with or without precipitation.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	28.5 83	33.3 92	Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	Altostratus opacus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.0 79	No precipitation No precipitation	6
	12	32.7 91	761.9 30 1015.78 1015.78	762.4 30.02 1016.45 1016.45	0.1 0 0.13 0.13	67	Wind blowing from the east-northeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			50%. 5/10. 4 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	Altostratus opacus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	25.7 78
	11	32.0 90	762.2 30.01 1016.18 1016.18	762.7 30.03 1016.85 1016.85	1.2 0.05 1.6 1.6	73	Wind blowing from the east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			60%. 6/10. 5 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	Altostratus opacus or Nimbostratus.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	26.6 80
	10	31.6 89	762.4 30.02 1016.45 1016.45	762.9 30.04 1017.12 1017.12	1.8 0.07 2.4 2.4	65	Wind blowing from the east-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 oktas						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	Altocumulus translucidus at a single level.	Cirrus spissatus cumulonimbogenitus.	30.0 18.6	24.2 76
	09	31.1 88	761.8 29.99 1015.65 1015.65	762.3 30.01 1016.32 1016.32		74	Wind blowing from the east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	20–30%. 2/10–3/10. 2 oktas	300-600 984-1968	Altocumulus translucidus at a single level.	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	25.9 79
	08	30.5 87	761.0 29.96 1014.58 1014.58	761.5 29.98 1015.25 1015.25		76	Wind blowing from the east-northeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	20–30%. 2/10–3/10. 2 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	25.8 78