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When to go · San Diego

San Diego in April

Great month. Inside San Diego's best window: Mar–May, Sep–Nov.

Key facts

Verdict
Great
Temperature
21°C (70°F) / 14°C (57°F)
average high / low
Rain days
4
Crowds
Medium
United States overall
Prices
Medium
United States overall

Verdict

GreatBest and avoid months for San Diego

Inside San Diego's best window: Mar–May, Sep–Nov.

Is another month better than April?

No other month rates higher than April for San Diego in this guide.

Weather in April

Long-term averages
  • San DiegoHighs around 21 °C (70 °F), lows around 14 °C (57 °F), rain on about 4 days
  • California coast, United States · San Francisco, Los Angeles, San Diego, Big Surbest weather

    Mild all year; San Francisco is foggy and cool in summer; wildfire smoke possible June–November; winter storms can close Highway 1 at Big Sur.

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

  • Spring break big impact

    March–April · United States

    Students fill Florida, Texas and Mexico beaches; parks busy.

Crowds and prices

Crowds · United States overall
Medium
Prices · United States overall
Medium

United States overall: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.

Compare two months

Weather, crowds and prices for any two months in San Diego, side by side.

  • Verdict

    Apr: Great

    Mar: Great

  • Daytime high

    Apr: 21 °C (70 °F)

    Mar: 19 °C (66 °F)

  • Night low

    Apr: 14 °C (57 °F)

    Mar: 13 °C (55 °F)

  • Rain days

    Apr: 4 (better)

    Mar: 6

  • Crowds

    Apr: Medium

    Mar: Medium

  • Prices

    Apr: Medium

    Mar: Medium

  • Festivals listed

    Apr: 1

    Mar: 2

April: Inside San Diego's best window: Mar–May, Sep–Nov.

March: Inside San Diego's best window: Mar–May, Sep–Nov.

San Diego: figures are long-term averages from this guide, not a forecast.

What to pack

Nothing unusual for the weather this month.

Build the full packing list for your trip →

Across United States in April →