San Bernardino Weather in January

San Bernardino in January sees very low temperatures, with highs around -3°C (27°F) and overnight lows of -11°C (12°F). Snowfall is fairly high at around 82 mm (3.2 in) on average, so pack waterproofs just in case.

Rainfall in San Bernardino in January

This month experiences about 16 days of snow according to historical data, averaging 82 mm (3.2 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in San Bernardino in January

Daytime highs in San Bernardino in January reach -3°C (27°F), with nights around -11°C (12°F). January is known for being in the winter season. Staying warm is the main priority this month, especially during mornings and evenings. At -11°C (12°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. Prepare for the coldest month of the year by packing warm and cozy winter cloths.

Sunshine in San Bernardino in January

The area experiences limited sunny days, amounting to roughly 85 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit San Bernardino. Our weather planner can help you explore destinations with more pleasant weather conditions.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Switzerland, check out our San Bernardino's climate page.

San Bernardino Temperature in January

Min Temperature -11°C (12°F)  

Max Temperature -3°C (27°F)  

Chance of Rain 54%  

Precipitation 82 mm (3.2 in)  

Rainy days 16 days  

Humidity 68% *  

Sunshine 85 hours *  

Percentage Sunshine 49% *  

* Data from: Disentis, Switzerland (37 KM, 23 Miles).

What to Wear in San Bernardino in January

We recommend you pack up your warm winter gear for San Bernardino in January. If you have insulated boots, thermal layers, and a heavy winter coat that can handle snow and freezing temperatures it's smart to bring them. Don't forget gloves, a warm hat, and a scarf. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in San Bernardino in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

1/10

Cycling

1/10

Walking

1/10

Camping

1/10

Outdoor sports

1/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Switzerland, check out our San Bernardino's climate page.

More climate data for San Bernardino

Temperature Rainfall Sunshine Humidity

See the full San Bernardino climate overview or explore weather in Switzerland.