Weather in South Dakota in August 2018

Expect 29°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in South Dakota in August. Check more long-term weather averages for South Dakota in August before you book your next holiday to South Dakota in 2018. The August weather averages shown below are for Sioux Falls.

Key weather averages for South Dakota in August

  • 29°C maximum daytime temperature in August in South Dakota (Sioux Falls)29
    29°C max day temperature
  • 10 hours of sunshine per day (71% of daylight hours) in August in South Dakota10
    10 hours of sunshine per day
  • 9 days with some rainfall in August in South Dakota (Sioux Falls)9
    9 days with some rainfall
  • 15°C minimum night-time temperature in August in South Dakota (Sioux Falls)15
    15°C min night temperature
  • 14 hours of daylight per day in August in South Dakota (Sioux Falls)14
    14 hours of daylight per day
  • Moderate heat & humidity in August in South Dakota (Sioux Falls)M
    Moderate heat & humidity
  • 74 mm monthly rainfall in August in South Dakota (Sioux Falls)74
    74 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in South Dakota (Sioux Falls)8
    8 (Very High) UV index

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

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

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Guide to South Dakota weather in August

The average maximum daytime temperature in South Dakota in August is a warm 29°C (84°F) with moderate heat & humidity. The average night-time temperature is usually a comfortable 15°C (59°F). There are usually 10 hours of bright sunshine each day, which represents 71% of the 14 hours of daylight.

Expect 74mm (2.9 inches) of rainfall across the whole of August with 9 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

The weather in South Dakota in August is represented by Sioux Falls.

South Dakota sunrise & sunset times for August 2018

Browse the sunrise & sunset times for South Dakota in August 2018. Select a month to view South Dakota sunrise & sunset times for the next twelve months. The South Dakota sunrise & sunset times shown below are for Sioux Falls.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st August 2018 06:16 20:49
Thursday, 2nd August 2018 06:17 20:48
Friday, 3rd August 2018 06:19 20:47
Saturday, 4th August 2018 06:20 20:46
Sunday, 5th August 2018 06:21 20:44
Monday, 6th August 2018 06:22 20:43
Tuesday, 7th August 2018 06:23 20:42
Wednesday, 8th August 2018 06:24 20:40
Thursday, 9th August 2018 06:25 20:39
Friday, 10th August 2018 06:26 20:38
Saturday, 11th August 2018 06:27 20:36
Sunday, 12th August 2018 06:28 20:35
Monday, 13th August 2018 06:30 20:33
Tuesday, 14th August 2018 06:31 20:32
Wednesday, 15th August 2018 06:32 20:30
Thursday, 16th August 2018 06:33 20:29
Friday, 17th August 2018 06:34 20:27
Saturday, 18th August 2018 06:35 20:25
Sunday, 19th August 2018 06:36 20:24
Monday, 20th August 2018 06:37 20:22
Tuesday, 21st August 2018 06:38 20:21
Wednesday, 22nd August 2018 06:40 20:19
Thursday, 23rd August 2018 06:41 20:17
Friday, 24th August 2018 06:42 20:16
Saturday, 25th August 2018 06:43 20:14
Sunday, 26th August 2018 06:44 20:12
Monday, 27th August 2018 06:45 20:11
Tuesday, 28th August 2018 06:46 20:09
Wednesday, 29th August 2018 06:47 20:07
Thursday, 30th August 2018 06:49 20:06
Friday, 31st August 2018 06:50 20:04
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Check South Dakota weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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