Vallejo
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Vallejo Weather in January

With daytime temperatures of 15°C (59°F) and nighttime lows of 4°C (39°F), January in Vallejo brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 74 mm (2.9 in) falls on average.

Rainfall in Vallejo in January

The climate data from previous years indicates about 9 days of rain, averaging 74 mm (2.9 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Vallejo in January

In January, Vallejo sees moderate temperatures, with highs of 15°C (59°F). Nights drop to around 4°C (39°F). January marks the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Vallejo in January

The city usually sees around 186 hours of sunlight, indicating a moderately sunny period.

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

Vallejo Temperature in January

Min Temperature
4°C (39°F)
Max Temperature
15°C (59°F)
Chance of Rain
29%
Precipitation
74 mm (2.9 in)
Rainy days
9 days
Humidity
80% *
Sunshine
186 hours *
Percentage Sunshine
61% *
* Data from: San Francisco, the United States of America (55 KM, 34 Miles).

Vallejo Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Vallejo - and find the best time to visit.

Best Places in the United States of America in January

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Vallejo in January

The weather can swing between comfortable and chilly in January, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Vallejo in January

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

  • Swimming
    5/10
  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Vallejo 3-Day Forecast

Popular in January

Where to go in January - average daytime high across popular destinations.

Bucket list

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