The highest day temperature in January 2025 was 102°F. The lowest night temperature was 62°F. The average values for day and night temperatures during January were 92.4°F и 72.9°F respectivly.

Most of the days in January are sunny but you can also expect cloudy and gloomy days.

Precipitation total in January for San Luis is 1.4 in. It makes january one of the most rainy months of the year.

The average wind speed in January is 9.8 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for San Luis in January is 9.7 hours.