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Monthly weather forecast in Portland

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

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

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

8 September, sun

	757 mmHg		75%
	5.5 m/s		+18

8 September, Sunday. day, 20°; night, 16°; partly cloudy

9 September, mon

	759 mmHg		45%
	5.5 m/s		+16

Climate normal

9 September, Monday. day, 23°; night, 14°; mostly clear

10 September, tue

	760 mmHg		58%
	3 m/s		+17

Climate normal

10 September, Tuesday. day, 22°; night, 10°; mostly clear

11 September, wed

	764 mmHg		56%
	5.3 m/s		+17

Climate normal

11 September, Wednesday. day, 22°; night, 11°; clear

12 September, thu

	766 mmHg		67%
	4.5 m/s		+17

Climate normal

12 September, Thursday. day, 23°; night, 14°; partly cloudy

13 September, fri

	764 mmHg		68%
	3.2 m/s		+18

Climate normal

13 September, Friday. day, 25°; night, 15°; partly cloudy

14 September, sat

	764 mmHg		64%
	3.1 m/s		+19

Climate normal

14 September, Saturday. day, 25°; night, 14°; light rain

15 September, sun

	765 mmHg		65%
	3.8 m/s		+18

Climate normal

15 September, Sunday. day, 22°; night, 13°; clear

16 September, mon

	765 mmHg		62%
	4.7 m/s		+18

Climate normal

16 September, Monday. day, 22°; night, 14°; partly cloudy

17 September, tue

	765 mmHg		66%
	4.2 m/s		+18

Climate normal

17 September, Tuesday. day, 24°; night, 15°; partly cloudy

18 September, wed

	763 mmHg		65%
	4.1 m/s		+19

Climate normal

18 September, Wednesday. day, 24°; night, 14°; partly cloudy

19 September, thu

	762 mmHg		64%
	5 m/s

Climate normal

19 September, Thursday. day, 23°; night, 14°; partly cloudy

20 September, fri

	762 mmHg		62%
	5.1 m/s

Climate normal

20 September, Friday. day, 25°; night, 14°; partly cloudy

21 September, sat

	763 mmHg		77%
	8.9 m/s

Climate normal

21 September, Saturday. day, 23°; night, 16°; light rain

22 September, sun

	763 mmHg		85%
	3.7 m/s

Climate normal

22 September, Sunday. day, 18°; night, 15°; mostly clear

23 September, mon

	757 mmHg		85%
	5.8 m/s

Climate normal

23 September, Monday. day, 20°; night, 17°; clear

24 September, tue

	746 mmHg		85%
	10.3 m/s

Climate normal

24 September, Tuesday. day, 19°; night, 11°; rain

25 September, wed

	754 mmHg		52%
	7.9 m/s

Climate normal

25 September, Wednesday. day, 13°; night, 12°; clear

26 September, thu

	759 mmHg		54%
	7 m/s

Climate normal

26 September, Thursday. day, 12°; night, 11°; clear

27 September, fri

	761 mmHg		76%
	7.1 m/s

Climate normal

27 September, Friday. day, 17°; night, 16°; clear

28 September, sat

	759 mmHg		77%
	5 m/s

Climate normal

28 September, Saturday. day, 19°; night, 15°; clear

29 September, sun

	758 mmHg		81%
	6.9 m/s

Climate normal

29 September, Sunday. day, 20°; night, 16°; clear

30 September, mon

	752 mmHg		96%
	5.9 m/s

Climate normal

30 September, Monday. day, 16°; night, 17°; rain

1 October, tue

	744 mmHg		84%
	12.1 m/s

Climate normal

1 October, Tuesday. day, 18°; night, 10°; rain

2 October, wed

	758 mmHg		58%
	9.9 m/s

Climate normal

2 October, Wednesday. day, 11°; night, 8°; mostly clear

3 October, thu

	761 mmHg		64%
	5.8 m/s

Climate normal

3 October, Thursday. day, 12°; night, 10°; clear

4 October, fri

	755 mmHg		91%
	8.3 m/s

Climate normal

4 October, Friday. day, 15°; night, 15°; rain

5 October, sat

	747 mmHg		79%
	11.8 m/s

Climate normal

5 October, Saturday. day, 15°; night, 10°; rain

6 October, sun

	752 mmHg		71%
	12.4 m/s

Climate normal

6 October, Sunday. day, 13°; night, 10°; mostly clear

7 October, mon

	756 mmHg		83%
	3.2 m/s

Climate normal

7 October, Monday. day, 15°; night, 13°; partly cloudy

8 October, tue

	762 mmHg		83%
	5.9 m/s

Climate normal

8 October, Tuesday. day, 13°; night, 10°; mostly clear

Average data for 10 years

Next, the average data for 10 years

9 October, wed

	757 mmHg		68%
	5.9 m/s		+15

9 October, Wednesday. day, 15°; night, 13°; partly cloudy

10 October, thu

	758 mmHg		67%
	5.8 m/s		+15

10 October, Thursday. day, 15°; night, 12°; clear

11 October, fri

	762 mmHg		64%
	5.8 m/s		+14

11 October, Friday. day, 13°; night, 11°; clear

12 October, sat

	761 mmHg		75%
	5.6 m/s		+14

12 October, Saturday. day, 13°; night, 11°; partly cloudy

Average for 30 days

16

sunny days

6

days with precipitation

8

cloudy days

16 sunny days; 6 days with precipitation; 8 cloudy days;

71

%

air humidity

6.3

m/s

WindS

13

mm of precipitation

(2% of annual average)

+18

°C

Water temperature

air humidity 71%; 13 millimeters of precipitation (2% of annual average); Wind southerly 6.3 Meters per second; Water temperature +18°

Forecast in graphs

TemperatureHumidity, %Wind, m/sPressure, mmHg

SW

N

S

S

SE

SE

S

S

SW

W

NW

W

NE

S

S

S

W

SW

SW

SW

S

E

SW

SW

S

SE

SW

W

SW

NE

9

Average data for 10 years

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

1

October

2

3

4

5

6

7

8

Daytime temperature

Night-time temperature

Weather forecast for the month based on historical data from the last 10 years.

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