San Marcos 18 December Weather

Altitude - 31m | 11°34′48″N,85°39′0″W | map (OSM)

San Marcos

°F

1:30 pmPartly Cloudy1mphE

Sat, December 6, 20252:27 PM (GMT -06:00)

Climatic norm in San Marcos Dec 18

68°
78°
87°

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	78°	77°	77°	81°	83°	83°	81°	80°
wind	15mph	14mph	14mph	17mph	18mph	17mph	14mph	14mph
pressure in	29.73	29.72	29.73	29.74	29.74	29.71	29.71	29.73

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

temperature °F	79°	78°	78°	80°	83°	84°	82°	81°
wind	17mph	16mph	17mph	19mph	17mph	9mph	12mph	14mph
pressure in	29.80	29.77	29.80	29.84	29.79	29.72	29.75	29.79

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

temperature °F	80°	78°	76°	78°	81°	83°	82°	81°
wind	18mph	19mph	18mph	18mph	18mph	16mph	17mph	20mph
pressure in	29.74	29.72	29.77	29.82	29.77	29.72	29.75	29.79

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

temperature °F	78°	78°	78°	80°	83°	85°	83°	79°
wind	16mph	17mph	18mph	21mph	19mph	18mph	18mph	20mph
pressure in	29.75	29.72	29.76	29.80	29.76	29.69	29.73	29.80

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

temperature °F	79°	78°	78°	80°	82°	84°	82°	79°
wind	18mph	16mph	18mph	18mph	14mph	10mph	14mph	16mph
pressure in	29.77	29.74	29.76	29.80	29.76	29.69	29.72	29.78

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

temperature °F	78°	78°	77°	80°	83°	84°	81°	79°
wind	21mph	21mph	22mph	21mph	19mph	15mph	19mph	21mph
pressure in	29.81	29.79	29.81	29.85	29.81	29.74	29.76	29.83

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

temperature °F	79°	78°	78°	81°	84°	85°	82°	80°
wind	13mph	13mph	14mph	16mph	12mph	9mph	13mph	15mph
pressure in	29.70	29.67	29.70	29.74	29.70	29.64	29.67	29.73

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

temperature °F	77°	76°	76°	79°	82°	83°	80°	78°
wind	16mph	15mph	16mph	18mph	17mph	13mph	13mph	15mph
pressure in	29.84	29.80	29.82	29.85	29.80	29.75	29.75	29.80

* San Marcos 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 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.