When to go · Vacaville
Vacaville, month by month
The best months for Vacaville: 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.13 °C (55 °F) / 3 °C (37 °F), 11 rain days55 °F (13 °C) / 37 °F (3 °C), 11 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).16 °C (61 °F) / 4 °C (39 °F), 10 rain days61 °F (16 °C) / 39 °F (4 °C), 10 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.19 °C (66 °F) / 6 °C (43 °F), 9 rain days66 °F (19 °C) / 43 °F (6 °C), 9 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGreatInside Vacaville's best window: Apr–Jun, Sep–Oct.23 °C (73 °F) / 8 °C (46 °F), 5 rain days73 °F (23 °C) / 46 °F (8 °C), 5 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Vacaville's best window: Apr–Jun, Sep–Oct.27 °C (81 °F) / 11 °C (52 °F), 3 rain days81 °F (27 °C) / 52 °F (11 °C), 3 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Vacaville's best window: Apr–Jun, Sep–Oct.31 °C (88 °F) / 13 °C (55 °F), 1 rain days88 °F (31 °C) / 55 °F (13 °C), 1 rain daysCrowds: High
- JulyAvoidListed as a month to avoid: Jul–Aug (inland heat, often 35 °C (95 °F)+), winter tule fog on I-80.Listed as a month to avoid: Jul–Aug (inland heat, often 95 °F (35 °C)+), winter tule fog on I-80.34 °C (93 °F) / 15 °C (59 °F), 0 rain days93 °F (34 °C) / 59 °F (15 °C), 0 rain daysCrowds: High · 1 festival or holiday
- AugustAvoidListed as a month to avoid: Jul–Aug (inland heat, often 35 °C (95 °F)+), winter tule fog on I-80.Listed as a month to avoid: Jul–Aug (inland heat, often 95 °F (35 °C)+), winter tule fog on I-80.34 °C (93 °F) / 15 °C (59 °F), 0 rain days93 °F (34 °C) / 59 °F (15 °C), 0 rain daysCrowds: High
- SeptemberGreatInside Vacaville's best window: Apr–Jun, Sep–Oct.32 °C (90 °F) / 13 °C (55 °F), 1 rain days90 °F (32 °C) / 55 °F (13 °C), 1 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Vacaville's best window: Apr–Jun, Sep–Oct.27 °C (81 °F) / 10 °C (50 °F), 3 rain days81 °F (27 °C) / 50 °F (10 °C), 3 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.19 °C (66 °F) / 6 °C (43 °F), 7 rain days66 °F (19 °C) / 43 °F (6 °C), 7 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.13 °C (55 °F) / 3 °C (37 °F), 10 rain days55 °F (13 °C) / 37 °F (3 °C), 10 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Vacaville, 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: 8 °C (46 °F)46 °F (8 °C)
May: 11 °C (52 °F)52 °F (11 °C)
Rain days
Apr: 5
May: 3 (better)
Crowds
Apr: Medium
May: Medium
Prices
Apr: Medium
May: Medium
Festivals listed
Apr: 1
May: 1
April: Inside Vacaville's best window: Apr–Jun, Sep–Oct.
May: Inside Vacaville's best window: Apr–Jun, Sep–Oct.
Vacaville: figures are long-term averages from this guide, not a forecast.