Best time to visit Idaho

Find the best time to visit Idaho and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Idaho by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Top Idaho destinations

Below are the temperatures expected today at popular countries, regions and places in Idaho. Select a destination to compare today's forecast with average weather conditions.

All Idaho destinations

When is the best time to visit Idaho?

The best time to visit Idaho (Boise) is May, June and September based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 2°C maximum daytime temperature in January in Idaho (Boise)2
    Jan
  • 7°C maximum daytime temperature in February in Idaho (Boise)7
    Feb
  • 12°C maximum daytime temperature in March in Idaho (Boise)12
    Mar
  • 16°C maximum daytime temperature in April in Idaho (Boise)16
    Apr
  • 22°C maximum daytime temperature in May in Idaho (Boise)22
    May
  • 27°C maximum daytime temperature in June in Idaho (Boise)27
    Jun
  • 32°C maximum daytime temperature in July in Idaho (Boise)32
    Jul
  • 31°C maximum daytime temperature in August in Idaho (Boise)31
    Aug
  • 25°C maximum daytime temperature in September in Idaho (Boise)25
    Sep
  • 18°C maximum daytime temperature in October in Idaho (Boise)18
    Oct
  • 9°C maximum daytime temperature in November in Idaho (Boise)9
    Nov
  • 3°C maximum daytime temperature in December in Idaho (Boise)3
    Dec

Hours of Sunshine (daily)

Which is the hottest month in Idaho?

The hottest time of year in Boise, Idaho is normally July. Expect maximum daytime temperatures to reach 32°C with moderate heat and humidity.

Which month has the most rain in Idaho?

In terms of rainfall, November is usually the wettest month in Boise, Idaho with 38mm on average. There are normally 10 days in November with some rain.

When is it sunniest in Idaho?

The sunniest time of year in Boise, Idaho is normally July with bright sunshine on average for 86% of daylight hours; that's 13 hours of sunshine per day.

Best time to visit

The weather guide for Idaho (Boise) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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Idaho travel features

Do you want to learn more about Idaho? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Idaho.

We don't currently have any travel features on Idaho. Discover more about holiday destinations around the world with this selection of general travel articles.

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