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San Diego in January

What to Expect from San Diego in January

January is right in the middle of San Diego's rainy season, bringing the most unpredictable weather of the year. Monthly rainfall often comes all on the same day, especially during winter storms.

More About: San Diego in the Winter

San Diego Weather in January

Average High Temperature: 65°F/18°C
Average Low Temperature: 49°F/9°C
Rain & Clouds Index: 1.98 inches (5.0 cm) rain, 72% sunshine

What to Pack, What to Wear in January

Pack an umbrella or rain jacket with hood for rainy days and a warm jacket if no rain is predicted. You won't need a heavy winter coat. Long-sleeved shirts and sweaters in layers work best.

San Diego January Events

Especially Fun in January

The day after it rains, skies are sometimes exceptionally clear and great for photography.

If precipitation happens, try these Things to Do on a Rainy Day in San Diego

San Diego whale watching season runs from December through March. Use the San Diego whale watching guide to learn more about California whale-watching and San Diego excursions.

Averages and Reality

The weather information we've given above is best used as a general idea of what things may be like. The only rain all summer could fall on your perfect picnic or a winter day could be so warm you'll wish you packed your shorts.

Averages are helpful for planning ahead, but don't count on your trip being "average." Check the San Diego weather forecast before you leave home.

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