Weather archive in Porto (airport)

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
2025 September 18, Thursday	21	19.2 67	759.1 29.89 1012.05 1012.05	765.2 30.13 1020.18 1020.18		79	Wind blowing from the south-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							16.4 62	24.2 76							15.5 60
	20	20.9 70	758.4 29.86 1011.12 1011.12	764.4 30.09 1019.12 1019.12		73	Wind blowing from the north-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)							13.9 57	24.2 76							15.8 60
	19	19.2 67	758.8 29.87 1011.65 1011.65	764.8 30.11 1019.65 1019.65		78	Wind blowing from the north-northwest	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 oktas				11.6 53	24.2 76	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	50%. 5/10. 4 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	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, 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.	13.0 8.1	15.3 60
	12	16.9 62	760.2 29.93 1013.52 1013.52	766.3 30.17 1021.65 1021.65		86	Wind blowing from the west-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)							10.9 52	21.9 71							14.6 58
	11	20.7 69	759.8 29.91 1012.98 1012.98	765.8 30.15 1020.98 1020.98		71	Wind blowing from the west-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							10.9 52	21.9 71							15.2 59
	10	20.0 68	759.4 29.9 1012.45 1012.45	765.4 30.13 1020.45 1020.45		65	Wind blowing from the south-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				10.9 52	20.0 68	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	70 – 80%. 7/10 – 8/10. 6 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	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.	15.0 9.3	13.1 56
	09	16.4 62	759.0 29.88 1011.92 1011.92	765.1 30.12 1020.05 1020.05		79	Wind blowing from the east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)							10.9 52	16.4 62							12.8 55
	08	14.0 57	759.0 29.88 1011.92 1011.92	765.2 30.13 1020.18 1020.18		85	Wind blowing from the east-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							10.9 52	16.4 62							11.5 53
	07	11.8 53	759.1 29.89 1012.05 1012.05	765.3 30.13 1020.32 1020.32		91	Wind blowing from the south	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				10.9 52	18.3 65	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	100-200 328-656	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	11.0 6.8	10.4 51
	06	12.3 54	758.8 29.87 1011.65 1011.65	765.0 30.12 1019.92 1019.92		91	Wind blowing from the south-southeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							11.9 53	21.8 71							10.8 51
	05	12.8 55	758.6 29.87 1011.38 1011.38	764.8 30.11 1019.65 1019.65		90	Wind blowing from the east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							11.9 53	22.5 73							11.1 52
	04	13.9 57	759.0 29.88 1011.92 1011.92	765.1 30.12 1020.05 1020.05		87	Wind blowing from the east	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			no clouds no clouds no clouds				11.9 53	22.5 73						14.0 8.7	11.8 53
	03	12.8 55	759.5 29.9 1012.58 1012.58	765.7 30.15 1020.85 1020.85		94	Wind blowing from the south-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							12.4 54	22.5 73							11.8 53
	02	14.3 58	759.5 29.9 1012.58 1012.58	765.7 30.15 1020.85 1020.85		91	Wind blowing from the east	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							13.6 56	22.5 73							12.9 55
	01	14.1 57	760.0 29.92 1013.25 1013.25	766.2 30.17 1021.52 1021.52		97	Wind blowing from the south	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			no clouds no clouds no clouds	More or less continuous shallow fog or ice fog at the station, whether on land or sea, not deeper than about 2 metres on land or 10 metres at sea.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	14.0 57	22.5 73						11.0 6.8	13.6 56
September 17, Wednesday	23	14.7 58	760.0 29.92 1013.25 1013.25	766.2 30.17 1021.52 1021.52		98	Wind blowing from the west	Calm							14.0 57	22.5 73							14.4 58
September 17, Wednesday	22	14.8 59	759.9 29.92 1013.12 1013.12	766.0 30.16 1021.25 1021.25		97	Wind blowing from the west-northwest	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				14.7 58	22.5 73	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	100-200 328-656	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	11.0 6.8	14.4 58