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When to go · Simi Valley

Simi Valley in January

Mixed month. Outside the best window (Mar–May, Oct–Nov). Across United States: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.

Key facts

Verdict
Mixed
Temperature
21°C (70°F) / 4°C (39°F)
average high / low
Rain days
6
Crowds
Low
United States overall
Prices
Low
United States overall

Verdict

MixedUnited States month rating

Outside the best window (Mar–May, Oct–Nov). Across United States: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.

Is another month better than January?

January is rated mixed. These months rate higher:

Weather in January

Long-term averages
  • Simi ValleyHighs around 21 °C (70 °F), lows around 4 °C (39 °F), rain on about 6 days

Crowds and prices

Crowds · United States overall
Low
Prices · United States overall
Low

United States overall: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.

Compare two months

Weather, crowds and prices for any two months in Simi Valley, side by side.

  • Verdict

    Jan: Mixed

    Mar: Great (better)

  • Daytime high

    Jan: 21 °C (70 °F)

    Mar: 23 °C (73 °F)

  • Night low

    Jan: 4 °C (39 °F)

    Mar: 6 °C (43 °F)

  • Rain days

    Jan: 6

    Mar: 5 (better)

  • Crowds

    Jan: Low

    Mar: Medium

  • Prices

    Jan: Low

    Mar: Medium

  • Festivals listed

    Jan: 0

    Mar: 2

January: Outside the best window (Mar–May, Oct–Nov). Across United States: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.

March: Inside Simi Valley's best window: Mar–May, Oct–Nov.

Simi Valley: figures are long-term averages from this guide, not a forecast.

What to pack

  • A warm coat, hat and gloves for mornings and evenings

Build the full packing list for your trip →

Across United States in January →