When to go · Castaic
Castaic in August
Avoid month. Listed as a month to avoid: Jul–Aug (inland heat, often 35 °C (95 °F)+), and summer weekends when the lake lots fill.Avoid month. Listed as a month to avoid: Jul–Aug (inland heat, often 95 °F (35 °C)+), and summer weekends when the lake lots fill.
Key facts
- Verdict
- Avoid
- Temperature
- 36°C (97°F)97°F (36°C) / 18°C (64°F)64°F (18°C)
- average high / low
- Rain days
- 0
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Listed as a month to avoid: Jul–Aug (inland heat, often 35 °C (95 °F)+), and summer weekends when the lake lots fill.Listed as a month to avoid: Jul–Aug (inland heat, often 95 °F (35 °C)+), and summer weekends when the lake lots fill.
Is another month better than August?
August is rated avoid. These months rate higher:
Weather in August
- CastaicHighs around 36 °C (97 °F), lows around 18 °C (64 °F), rain on about 0 daysHighs around 97 °F (36 °C), lows around 64 °F (18 °C), rain on about 0 days
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Castaic, side by side.
Verdict
Aug: Avoid
Apr: Great (better)
Daytime high
Aug: 36 °C (97 °F)97 °F (36 °C)
Apr: 23 °C (73 °F)73 °F (23 °C)
Night low
Aug: 18 °C (64 °F)64 °F (18 °C)
Apr: 9 °C (48 °F)48 °F (9 °C)
Rain days
Aug: 0 (better)
Apr: 3
Crowds
Aug: High
Apr: Medium
Prices
Aug: High
Apr: Medium
Festivals listed
Aug: 0
Apr: 1
August: Listed as a month to avoid: Jul–Aug (inland heat, often 35 °C+), and summer weekends when the lake lots fill.
April: Inside Castaic's best window: Apr–Jun, Sep–Oct.
Castaic: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen