When to go · Castaic
Castaic, month by month
The best months for Castaic: Apr, May, Jun, Sep, Oct. Months to avoid: Jul, Aug.
Month by month
- JanuaryMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.17 °C (63 °F) / 5 °C (41 °F), 6 rain days63 °F (17 °C) / 41 °F (5 °C), 6 rain daysCrowds: Low
- FebruaryMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Still winter north; ski season in the Rockies; Presidents' Day weekend busy. Mardi Gras in New Orleans (date varies).18 °C (64 °F) / 6 °C (43 °F), 6 rain days64 °F (18 °C) / 43 °F (6 °C), 6 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (Apr–Jun, Sep–Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.20 °C (68 °F) / 7 °C (45 °F), 5 rain days68 °F (20 °C) / 45 °F (7 °C), 5 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGreatInside Castaic's best window: Apr–Jun, Sep–Oct.23 °C (73 °F) / 9 °C (48 °F), 3 rain days73 °F (23 °C) / 48 °F (9 °C), 3 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Castaic's best window: Apr–Jun, Sep–Oct.27 °C (81 °F) / 12 °C (54 °F), 1 rain days81 °F (27 °C) / 54 °F (12 °C), 1 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Castaic's best window: Apr–Jun, Sep–Oct.31 °C (88 °F) / 15 °C (59 °F), 0 rain days88 °F (31 °C) / 59 °F (15 °C), 0 rain daysCrowds: High
- JulyAvoidListed 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.35 °C (95 °F) / 18 °C (64 °F), 0 rain days95 °F (35 °C) / 64 °F (18 °C), 0 rain daysCrowds: High · 1 festival or holiday
- AugustAvoidListed 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.36 °C (97 °F) / 18 °C (64 °F), 0 rain days97 °F (36 °C) / 64 °F (18 °C), 0 rain daysCrowds: High
- SeptemberGreatInside Castaic's best window: Apr–Jun, Sep–Oct.33 °C (91 °F) / 17 °C (63 °F), 1 rain days91 °F (33 °C) / 63 °F (17 °C), 1 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Castaic's best window: Apr–Jun, Sep–Oct.28 °C (82 °F) / 13 °C (55 °F), 2 rain days82 °F (28 °C) / 55 °F (13 °C), 2 rain daysCrowds: Medium
- NovemberMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.22 °C (72 °F) / 8 °C (46 °F), 3 rain days72 °F (22 °C) / 46 °F (8 °C), 3 rain daysCrowds: Medium · 1 festival or holiday
- DecemberMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.17 °C (63 °F) / 5 °C (41 °F), 5 rain days63 °F (17 °C) / 41 °F (5 °C), 5 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Castaic, side by side.
Verdict
Apr: Great
May: Great
Daytime high
Apr: 23 °C (73 °F)73 °F (23 °C)
May: 27 °C (81 °F)81 °F (27 °C)
Night low
Apr: 9 °C (48 °F)48 °F (9 °C)
May: 12 °C (54 °F)54 °F (12 °C)
Rain days
Apr: 3
May: 1 (better)
Crowds
Apr: Medium
May: Medium
Prices
Apr: Medium
May: Medium
Festivals listed
Apr: 1
May: 1
April: Inside Castaic's best window: Apr–Jun, Sep–Oct.
May: Inside Castaic's best window: Apr–Jun, Sep–Oct.
Castaic: figures are long-term averages from this guide, not a forecast.