Weather in Portland in September 2017

Check the weather in Portland in September before you book your next holiday in Oregon. Long-term weather averages give the best indication of the weather in September 2017 and include figures for temperature, sunshine and rainfall plus sunrise & sunset times for Portland, Oregon, United States.

Weather in Portland in September

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

  • 23°C maximum daytime temperature in September in Portland23
    23°C max day temperature
  • 8 hours of sunshine per day (64% of daylight hours) in September in Portland8
    8 hours of sunshine per day
  • 8 days with some rainfall in September in Portland8
    8 days with some rainfall
  • 9°C minimum night-time temperature in September in Portland9
    9°C min night temperature
  • 12 hours of daylight per day in September in Portland12
    12 hours of daylight per day
  • No heat & humidity in September in Portland0
    No heat & humidity
  • 47 mm monthly rainfall in September in Portland47
    47 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Portland5
    5 (Moderate) UV index

The average maximum daytime temperature in Portland in September is a warm 23°C (73°F). There are usually 8 hours of bright sunshine each day, which represents 64% of the 12 hours of daylight.

Expect 47mm (1.9 inches) of rainfall across the whole of September with 8 days with some rain falling. Maximum UV levels will be moderate (5 UV index) at midday when the skies are clear. The average night-time temperature is usually a cool 9°C (48°F).

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

More about Portland weather

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Portland sunrise & sunset times for September 2017

Browse the sunrise & sunset times for Portland in September 2017. Select a month to view Portland sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st September 2017 06:33 19:48
Saturday, 2nd September 2017 06:34 19:46
Sunday, 3rd September 2017 06:35 19:44
Monday, 4th September 2017 06:36 19:42
Tuesday, 5th September 2017 06:37 19:40
Wednesday, 6th September 2017 06:39 19:38
Thursday, 7th September 2017 06:40 19:36
Friday, 8th September 2017 06:41 19:35
Saturday, 9th September 2017 06:42 19:33
Sunday, 10th September 2017 06:43 19:31
Monday, 11th September 2017 06:45 19:29
Tuesday, 12th September 2017 06:46 19:27
Wednesday, 13th September 2017 06:47 19:25
Thursday, 14th September 2017 06:48 19:23
Friday, 15th September 2017 06:50 19:21
Saturday, 16th September 2017 06:51 19:19
Sunday, 17th September 2017 06:52 19:17
Monday, 18th September 2017 06:53 19:15
Tuesday, 19th September 2017 06:54 19:13
Wednesday, 20th September 2017 06:56 19:11
Thursday, 21st September 2017 06:57 19:09
Friday, 22nd September 2017 06:58 19:07
Saturday, 23rd September 2017 06:59 19:06
Sunday, 24th September 2017 07:01 19:04
Monday, 25th September 2017 07:02 19:02
Tuesday, 26th September 2017 07:03 19:00
Wednesday, 27th September 2017 07:04 18:58
Thursday, 28th September 2017 07:06 18:56
Friday, 29th September 2017 07:07 18:54
Saturday, 30th September 2017 07:08 18:52
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Check Portland 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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