Weather in Rapid City in September 2016

Check the weather in Rapid City in September before you book your next holiday in South Dakota. Long-term weather averages give the best indication of the weather in September 2016 and include figures for temperature, sunshine and rainfall for Rapid City, South Dakota, United States.

Weather in Rapid City in September

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

  • 23°C maximum daytime temperature in September in Rapid City23
    23°C max day temperature
  • 9 hours of sunshine per day (69% of daylight hours) in September in Rapid City9
    9 hours of sunshine per day
  • 7 days with some rainfall in September in Rapid City7
    7 days with some rainfall
  • 7°C minimum night-time temperature in September in Rapid City7
    7°C min night temperature
  • 12 hours of daylight per day in September in Rapid City12
    12 hours of daylight per day
  • No heat & humidity in September in Rapid City0
    No heat & humidity
  • 30 mm monthly rainfall in September in Rapid City30
    30 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Rapid City6
    6 (High) UV index

The average maximum daytime temperature in Rapid City in September is a warm 23°C (73°F). There are usually 9 hours of bright sunshine each day, which represents 69% of the 12 hours of daylight.

Expect 30mm (1.2 inches) of rainfall across the whole of September with 7 days with some rain falling. Maximum UV levels will be high (6 UV index) at midday when the skies are clear. The average night-time temperature is usually a cold 7°C (45°F).

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

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Rapid City sunrise & sunset times for September 2016

Browse the sunrise & sunset times for Rapid City in September 2016. Select a month to view Rapid City sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Thursday, 1st September 2016 06:17 19:28
Friday, 2nd September 2016 06:18 19:26
Saturday, 3rd September 2016 06:19 19:24
Sunday, 4th September 2016 06:20 19:22
Monday, 5th September 2016 06:21 19:21
Tuesday, 6th September 2016 06:22 19:19
Wednesday, 7th September 2016 06:24 19:17
Thursday, 8th September 2016 06:25 19:15
Friday, 9th September 2016 06:26 19:13
Saturday, 10th September 2016 06:27 19:11
Sunday, 11th September 2016 06:28 19:10
Monday, 12th September 2016 06:29 19:08
Tuesday, 13th September 2016 06:30 19:06
Wednesday, 14th September 2016 06:32 19:04
Thursday, 15th September 2016 06:33 19:02
Friday, 16th September 2016 06:34 19:00
Saturday, 17th September 2016 06:35 18:59
Sunday, 18th September 2016 06:36 18:57
Monday, 19th September 2016 06:37 18:55
Tuesday, 20th September 2016 06:38 18:53
Wednesday, 21st September 2016 06:40 18:51
Thursday, 22nd September 2016 06:41 18:49
Friday, 23rd September 2016 06:42 18:47
Saturday, 24th September 2016 06:43 18:46
Sunday, 25th September 2016 06:44 18:44
Monday, 26th September 2016 06:45 18:42
Tuesday, 27th September 2016 06:47 18:40
Wednesday, 28th September 2016 06:48 18:38
Thursday, 29th September 2016 06:49 18:36
Friday, 30th September 2016 06:50 18:35
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Rapid City weather by month

Check Rapid City 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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