San Ramon Weather in January

January in San Ramon brings moderate temperatures, with daytime highs of 14°C (57°F) and nights around 4°C (39°F). Quite a bit of rainfall is expected, around 79 mm (3.1 in), so pack an umbrella.

Rainfall in San Ramon in January

Historically, January sees about 11 days of rain, with a monthly average of 79 mm (3.1 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in San Ramon in January

Expect highs of 14°C (57°F) in San Ramon in January, with nights dropping to around 4°C (39°F). January is known for being in the winter season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in San Ramon in January

The area enjoys a moderate level of sunlight, with around 186 hours. It's a good balance between sunny and cloudy days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, June, September and October typically offer the best weather for San Ramon.