Helena weather in August 2019

  • 28°C maximum daytime temperature in August in Helena28
    28°C max day temperature
  • 10 hours of sunshine per day
  • 8 days with some rainfall in August in Helena8
    8 days with some rainfall
  • 9°C minimum night-time temperature in August in Helena9
    9°C min night temperature
  • 14 hours of daylight per day in August in Helena14
    14 hours of daylight per day
  • Low heat & humidity in August in HelenaL
    Low heat & humidity
  • 34 mm monthly rainfall in August in Helena34
    34 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Helena8
    8 (Very High) UV index

Going to Helena? Find the best month to visit Helena based on the weather.

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Expect 28°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Helena in August. Check more long-term weather averages for Helena in August before you book your next holiday to Montana in 2019/2020.

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More about Helena

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The August weather guide for Helena, Montana shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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

Guide to Helena weather in August

The average maximum daytime temperature in Helena in August is a warm 28°C (82°F) with low heat & humidity. The average night-time temperature is usually a cool 9°C (48°F). There are usually 10 hours of bright sunshine each day, which represents 73% of the 14 hours of daylight.

Expect 34mm (1.3 inches) of rainfall across the whole of August with 8 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

Helena sunrise & sunset times for August 2019

Browse the sunrise & sunset times for Helena in August 2019. Select a month to view Helena sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st August 2019 06:09 21:00
Friday, 2nd August 2019 06:10 20:58
Saturday, 3rd August 2019 06:11 20:57
Sunday, 4th August 2019 06:12 20:55
Monday, 5th August 2019 06:14 20:54
Tuesday, 6th August 2019 06:15 20:52
Wednesday, 7th August 2019 06:16 20:51
Thursday, 8th August 2019 06:17 20:49
Friday, 9th August 2019 06:19 20:48
Saturday, 10th August 2019 06:20 20:46
Sunday, 11th August 2019 06:21 20:45
Monday, 12th August 2019 06:22 20:43
Tuesday, 13th August 2019 06:24 20:42
Wednesday, 14th August 2019 06:25 20:40
Thursday, 15th August 2019 06:26 20:38
Friday, 16th August 2019 06:27 20:37
Saturday, 17th August 2019 06:29 20:35
Sunday, 18th August 2019 06:30 20:33
Monday, 19th August 2019 06:31 20:31
Tuesday, 20th August 2019 06:33 20:30
Wednesday, 21st August 2019 06:34 20:28
Thursday, 22nd August 2019 06:35 20:26
Friday, 23rd August 2019 06:36 20:24
Saturday, 24th August 2019 06:38 20:22
Sunday, 25th August 2019 06:39 20:21
Monday, 26th August 2019 06:40 20:19
Tuesday, 27th August 2019 06:42 20:17
Wednesday, 28th August 2019 06:43 20:15
Thursday, 29th August 2019 06:44 20:13
Friday, 30th August 2019 06:45 20:11
Saturday, 31st August 2019 06:47 20:09
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