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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

4 August, sun

	755 mmHg		81%
	4.6 m/s		+20

4 August, Sunday. day, 22°; night, 19°; clear

5 August, mon

	755 mmHg		75%
	5.5 m/s		+20

5 August, Monday. day, 22°; night, 18°; partly cloudy

6 August, tue

	755 mmHg		75%
	5 m/s		+20

6 August, Tuesday. day, 21°; night, 18°; partly cloudy

7 August, wed

	761 mmHg		73%
	4.2 m/s		+21

Climate normal

7 August, Wednesday. day, 22°; night, 14°; light rain

8 August, thu

	765 mmHg		73%
	4 m/s		+20

Climate normal

8 August, Thursday. day, 23°; night, 18°; light rain

9 August, fri

	762 mmHg		91%
	6.3 m/s		+20

Climate normal

9 August, Friday. day, 21°; night, 21°; thunderstorm with rain

10 August, sat

	753 mmHg		76%
	12.2 m/s		+20

Climate normal

10 August, Saturday. day, 28°; night, 17°; heavy rain

11 August, sun

	756 mmHg		57%
	5.3 m/s		+20

Climate normal

11 August, Sunday. day, 24°; night, 17°; partly cloudy

12 August, mon

	755 mmHg		63%
	4.1 m/s		+20

Climate normal

12 August, Monday. day, 23°; night, 16°; light rain

13 August, tue

	757 mmHg		62%
	3.1 m/s		+20

Climate normal

13 August, Tuesday. day, 25°; night, 18°; light rain

14 August, wed

	756 mmHg		62%
	3 m/s		+21

Climate normal

14 August, Wednesday. day, 26°; night, 17°; light rain

15 August, thu

	756 mmHg		65%
	3.8 m/s		+21

Climate normal

15 August, Thursday. day, 26°; night, 16°; light rain

16 August, fri

	758 mmHg		74%
	3.6 m/s		+20

Climate normal

16 August, Friday. day, 24°; night, 17°; partly cloudy

17 August, sat

	759 mmHg		69%
	3.8 m/s

Climate normal

17 August, Saturday. day, 25°; night, 17°; partly cloudy

18 August, sun

	759 mmHg		65%
	4.8 m/s

Climate normal

18 August, Sunday. day, 26°; night, 17°; partly cloudy

19 August, mon

	764 mmHg		73%
	3.8 m/s

Climate normal

19 August, Monday. day, 19°; night, 13°; clear

20 August, tue

	762 mmHg		74%
	4.9 m/s

Climate normal

20 August, Tuesday. day, 19°; night, 15°; mostly clear

21 August, wed

	754 mmHg		72%
	8.7 m/s

Climate normal

21 August, Wednesday. day, 18°; night, 17°; partly cloudy

22 August, thu

	752 mmHg		74%
	5 m/s

Climate normal

22 August, Thursday. day, 23°; night, 20°; clear

23 August, fri

	748 mmHg		80%
	10.3 m/s

Climate normal

23 August, Friday. day, 24°; night, 20°; partly cloudy

24 August, sat

	752 mmHg		76%
	6.1 m/s

Climate normal

24 August, Saturday. day, 22°; night, 16°; mostly clear

25 August, sun

	759 mmHg		80%
	4.6 m/s

Climate normal

25 August, Sunday. day, 21°; night, 17°; clear

26 August, mon

	755 mmHg		91%
	5.4 m/s

Climate normal

26 August, Monday. day, 23°; night, 19°; rain

27 August, tue

	755 mmHg		85%
	3.6 m/s

Climate normal

27 August, Tuesday. day, 22°; night, 17°; clear

28 August, wed

	759 mmHg		79%
	3.2 m/s

Climate normal

28 August, Wednesday. day, 22°; night, 19°; clear

29 August, thu

	760 mmHg		73%
	3.2 m/s

Climate normal

29 August, Thursday. day, 23°; night, 18°; mostly clear

30 August, fri

	761 mmHg		79%
	2.4 m/s

Climate normal

30 August, Friday. day, 23°; night, 17°; partly cloudy

31 August, sat

	761 mmHg		78%
	3.4 m/s

Climate normal

31 August, Saturday. day, 23°; night, 17°; clear

1 September, sun

	758 mmHg		76%
	4.8 m/s

Climate normal

1 September, Sunday. day, 21°; night, 18°; clear

2 September, mon

	755 mmHg		85%
	4.7 m/s

Climate normal

2 September, Monday. day, 22°; night, 18°; light rain

3 September, tue

	761 mmHg		71%
	4.6 m/s

Climate normal

3 September, Tuesday. day, 19°; night, 13°; mostly clear

4 September, wed

	761 mmHg		70%
	3 m/s

Climate normal

4 September, Wednesday. day, 19°; night, 12°; clear

5 September, thu

	758 mmHg		67%
	4.7 m/s

Climate normal

5 September, Thursday. day, 18°; night, 16°; partly cloudy

Average data for 10 years

Next, the average data for 10 years

6 September, fri

	757 mmHg		80%
	5.3 m/s		+18

6 September, Friday. day, 20°; night, 17°; clear

7 September, sat

	756 mmHg		77%
	5.5 m/s		+19

7 September, Saturday. day, 20°; night, 17°; partly cloudy

Average for 30 days

14

sunny days

8

days with precipitation

8

cloudy days

14 sunny days; 8 days with precipitation; 8 cloudy days;

74

%

air humidity

4.8

m/s

WindS

75

mm of precipitation

(8% of annual average)

+20

°C

Water temperature

air humidity 74%; 75 millimeters of precipitation (8% of annual average); Wind southerly 4.8 Meters per second; Water temperature +20°

Forecast in graphs

TemperatureHumidity, %Wind, m/sPressure, mmHg

S

SE

SE

SW

SW

W

NW

W

SW

S

SE

SW

SE

E

NW

W

S

NW

S

S

NW

S

SW

S

SE

S

NW

S

E

S

7

Average data for 10 years

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

1

September

2

3

4

5

Daytime temperature

Night-time temperature

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

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