When to go · Boise
Boise, month by month
The best months for Boise: May, Jun, Sep, Oct. Months to avoid: Jan, Feb, Jul, Aug, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Jul–Aug (mid-30s °C and dry), Dec–Feb (ice and rain).4 °C / -4 °C, 8 rain days39 °F / 25 °F, 8 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Jul–Aug (mid-30s °C and dry), Dec–Feb (ice and rain).8 °C / -2 °C, 7 rain days46 °F / 28 °F, 7 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (May–Jun, Sep–early Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.13 °C / 2 °C, 9 rain days55 °F / 36 °F, 9 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (May–Jun, Sep–early Oct). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.17 °C / 4 °C, 8 rain days63 °F / 39 °F, 8 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Boise's best window: May–Jun, Sep–early Oct.22 °C / 9 °C, 8 rain days72 °F / 48 °F, 8 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Boise's best window: May–Jun, Sep–early Oct.27 °C / 12 °C, 5 rain days81 °F / 54 °F, 5 rain daysCrowds: High
- JulyAvoidListed as a month to avoid: Jul–Aug (mid-30s °C and dry), Dec–Feb (ice and rain).34 °C / 17 °C, 2 rain days93 °F / 63 °F, 2 rain daysCrowds: High · 1 festival or holiday
- AugustAvoidListed as a month to avoid: Jul–Aug (mid-30s °C and dry), Dec–Feb (ice and rain).33 °C / 16 °C, 2 rain days91 °F / 61 °F, 2 rain daysCrowds: High
- SeptemberGreatInside Boise's best window: May–Jun, Sep–early Oct.27 °C / 11 °C, 3 rain days81 °F / 52 °F, 3 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Boise's best window: May–Jun, Sep–early Oct.18 °C / 5 °C, 5 rain days64 °F / 41 °F, 5 rain daysCrowds: Medium
- NovemberMixedOutside the best window (May–Jun, Sep–early Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.9 °C / 0 °C, 8 rain days48 °F / 32 °F, 8 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Jul–Aug (mid-30s °C and dry), Dec–Feb (ice and rain).4 °C / -4 °C, 9 rain days39 °F / 25 °F, 9 rain daysCrowds: High · 1 festival or holiday