When to go · Castro Valley
Castro Valley in April
Great month. Inside Castro Valley's best window: Apr–Jun, Sep–Oct.
Key facts
- Verdict
- Great
- Temperature
- 20°C (68°F)68°F (20°C) / 9°C (48°F)48°F (9°C)
- average high / low
- Rain days
- 6
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside Castro Valley's best window: Apr–Jun, Sep–Oct.
Is another month better than April?
No other month rates higher than April for Castro Valley in this guide.
Weather in April
- Castro ValleyHighs around 20 °C (68 °F), lows around 9 °C (48 °F), rain on about 6 daysHighs around 68 °F (20 °C), lows around 48 °F (9 °C), rain on about 6 days
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 Castro Valley, side by side.
Verdict
Apr: Great
May: Great
Daytime high
Apr: 20 °C (68 °F)68 °F (20 °C)
May: 22 °C (72 °F)72 °F (22 °C)
Night low
Apr: 9 °C (48 °F)48 °F (9 °C)
May: 11 °C (52 °F)52 °F (11 °C)
Rain days
Apr: 6
May: 4 (better)
Crowds
Apr: Medium
May: Medium
Prices
Apr: Medium
May: Medium
Festivals listed
Apr: 1
May: 1
April: Inside Castro Valley's best window: Apr–Jun, Sep–Oct.
May: Inside Castro Valley's best window: Apr–Jun, Sep–Oct.
Castro Valley: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings