San Marcos Sierras 18 December Weather

Altitude - 563m | 30°46′48″S,64°37′48″W | map (OSM)

San Marcos Sierras

°F

12:30 pmFair7mphNW

Tue, December 16, 20251:02 PM (GMT -03:00)

Climatic norm in San Marcos Sierras Dec 18

63°
73°
83°

minimum
average
maximum

Thursday Dec 18 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	64°	61°	61°	73°	82°	86°	84°	72°
wind	8mph	7mph	6mph	8mph	9mph	9mph	11mph	11mph
pressure in	27.91	27.88	27.90	27.98	27.97	27.91	27.87	27.88

Wednesday Dec 18 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	69°	69°	64°	63°	61°	66°	69°	63°
wind	14mph	12mph	9mph	9mph	8mph	6mph	6mph	4mph
pressure in	27.94	27.91	27.91	27.97	27.97	27.97	27.93	27.97

Monday Dec 18 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	69°	68°	64°	62°	68°	66°	64°	57°
wind	16mph	12mph	14mph	14mph	13mph	13mph	16mph	16mph
pressure in	27.87	27.88	27.89	27.94	27.99	27.97	27.96	28.03

Sunday Dec 18 2022	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	54°	52°	53°	66°	74°	78°	77°	64°
wind	5mph	6mph	6mph	7mph	7mph	8mph	9mph	8mph
pressure in	27.94	27.92	27.95	28.02	28.01	27.96	27.93	27.96

Saturday Dec 18 2021	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	67°	66°	64°	75°	83°	86°	84°	73°
wind	10mph	9mph	8mph	10mph	11mph	13mph	14mph	10mph
pressure in	28.03	27.99	28.00	28.06	28.05	27.99	27.94	27.95

Friday Dec 18 2020	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	71°	69°	67°	78°	87°	91°	89°	71°
wind	10mph	10mph	10mph	16mph	20mph	20mph	18mph	9mph
pressure in	27.87	27.82	27.79	27.82	27.76	27.67	27.57	27.64

Wednesday Dec 18 2019	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	65°	63°	63°	74°	81°	86°	84°	72°
wind	11mph	10mph	10mph	14mph	16mph	15mph	15mph	12mph
pressure in	27.93	27.92	27.93	27.98	27.96	27.90	27.84	27.86

Tuesday Dec 18 2018	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	65°	63°	60°	62°	67°	69°	68°	63°
wind	19mph	16mph	13mph	12mph	10mph	9mph	9mph	6mph
pressure in	28.03	28.01	28.05	28.13	28.15	28.12	28.07	28.07

* San Marcos Sierras weather for December 18 is prepared on the basis of GFS data and is intended for personal use in the "as is" (as is) format. You can see on this page San Marcos Sierras Weather for December 18, as well as compare air temperature with the climate norm for this date. Perhaps you will be interested - for comparison, the actual weather on December 18 for previous years is presented.