Weather archive in Esperanza Base

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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 21, Monday	08	0.5 33	739.3 29.11 985.65 985.65	741.5 29.19 988.59 988.59	-1.2 -0.05 -1.6 -1.6	91	Wind blowing from the south-west	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			100%. 10/10. 8 oktas				-12.0 10	1.5 35	Stratocumulus other than Stratocumulus cumulogenitus.	20–30%. 2/10–3/10. 2 oktas	100-200 328-656	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 (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.	10.0 6.2	-0.8 31	Trace of precipitation Trace of precipitation	24			Even layer of loose dry snow covering ground completely.	10 3.9
	05	-5.1 23	740.5 29.15 987.25 987.25	742.9 29.25 990.45 990.45	-1.9 -0.07 -2.53 -2.53	83	Wind blowing from the west	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			60%. 6/10. 5 oktas						No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	20–30%. 2/10–3/10. 2 oktas	2000-2500 6562-8202	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	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.	10.0 6.2	-7.5 19
	02	-11.5 11	742.4 29.23 989.79 989.79	744.8 29.32 992.99 992.99	-1.5 -0.06 -2 -2	73	Wind blowing from the east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds											10.0 6.2	-15.5 4
September 20, Sunday	23	-11.1 12	743.9 29.29 991.79 991.79	746.2 29.38 994.85 994.85	-0.2 -0.01 -0.27 -0.27	73	Wind blowing from the south-west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			no clouds no clouds no clouds											10.0 6.2	-15.0 5
	20	-11.1 12	744.1 29.3 992.05 992.05	746.5 29.39 995.25 995.25	1.2 0.05 1.6 1.6	80	Wind blowing from the south-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			no clouds no clouds no clouds				-15.0 5	-4.2 24						10.0 6.2	-13.9 7
	17	-9.7 15	742.9 29.25 990.45 990.45	745.2 29.34 993.52 993.52	1.7 0.07 2.27 2.27	76	Wind blowing from the south	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0						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	200-300 656-984	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	10.0 6.2	-13.2 8
	14	-5.7 22	741.2 29.18 988.19 988.19	743.5 29.27 991.25 991.25	-0.5 -0.02 -0.67 -0.67	82	Wind blowing from the south-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	Clouds generally dissolving or becoming less developed.	Snow and/or other types of solid precipitation	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.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	200-300 656-984	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	10.0 6.2	-8.3 17	Trace of precipitation Trace of precipitation	6
	11	-12.7 9	741.7 29.2 988.85 988.85	744.1 29.3 992.05 992.05	0.5 0.02 0.67 0.67	70	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	Intermittent fall of snowflakes, slight at time of observation.	Snow and/or other types of solid precipitation	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.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	100-200 328-656	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	3.0 1.9	-17.1 1
	08	-14.3 6	741.2 29.18 988.19 988.19	743.5 29.27 991.25 991.25	0.9 0.04 1.2 1.2	75	Wind blowing from the south-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			60%. 6/10. 5 oktas	Clouds generally dissolving or becoming less developed.	Snow and/or other types of solid precipitation	Cloud covering more than 1/2 of the sky throughout the appropriate period.	-16.2 3	-14.0 7	Stratocumulus other than Stratocumulus cumulogenitus.	60%. 6/10. 5 oktas	200-300 656-984	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	10.0 6.2	-17.8 -0	Trace of precipitation Trace of precipitation	24			Even layer of loose dry snow covering ground completely.	10 3.9