San Bernardino Weather in January

January in San Bernardino averages 20°C (68°F) during the day and 6°C (43°F) at night. The excellent conditions and moderate rainfall make it a solid month to visit.

Rainfall in San Bernardino in January

Climate statistics over the past 30 years suggest around 5 days of rain, with 45 mm (1.8 in) average for the month. Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in San Bernardino in January

January tends to be one of the excellent months in San Bernardino, with 20°C (68°F) in the afternoon and 6°C (43°F) overnight. January is known for being in the winter season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in San Bernardino in January

There are approximately 198 hours of sunshine this month, resulting in mostly clear days.

If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, May, October and November typically offer the best circumstances for San Bernardino.