Best time to visit Helena

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

Helena by month

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

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When is the best time to visit Helena?

The best time to visit Helena is June, July and August 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)

  • -1°C maximum daytime temperature in January in Helena-1
    Jan
  • 3°C maximum daytime temperature in February in Helena3
    Feb
  • 6°C maximum daytime temperature in March in Helena6
    Mar
  • 12°C maximum daytime temperature in April in Helena12
    Apr
  • 18°C maximum daytime temperature in May in Helena18
    May
  • 23°C maximum daytime temperature in June in Helena23
    Jun
  • 28°C maximum daytime temperature in July in Helena28
    Jul
  • 28°C maximum daytime temperature in August in Helena28
    Aug
  • 20°C maximum daytime temperature in September in Helena20
    Sep
  • 14°C maximum daytime temperature in October in Helena14
    Oct
  • 5°C maximum daytime temperature in November in Helena5
    Nov
  • 0°C maximum daytime temperature in December in Helena0
    Dec

Hours of Sunshine (daily)

Which is the hottest month in Helena?

The hottest time of year in Helena is normally July. Expect maximum daytime temperatures to reach 28°C with low heat and humidity.

Which month has the most rain in Helena?

In terms of rainfall, June is usually the wettest month in Helena with 55mm on average. There are normally 10 days in June with some rain.

When is it sunniest in Helena?

The sunniest time of year in Helena is normally July with bright sunshine on average for 77% of daylight hours; that's 12 hours of sunshine per day.

Best time to visit

The weather guide for Montana (Helena) 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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