Weather in Portland in Autumn
| September | October | November | ||||
| Average day temperature: | 73.2°F | 61.9°F | 50.5°F | |||
| Average night temperature: | 58.1°F | 51.1°F | 43.7°F | |||
| Number of sunny days: | 16 days | 12 days | 7 days | |||
| Day length: | 11.7 - 13.3 h. | 10.2 - 11.7 h. | 9.0 - 10.1 h. | |||
| Number of rainy days: | 3 days | 5 days | 7 days | |||
| Precipitation totals: | 1.6 in. | 2.7 in. | 3.5 in. | |||
Day & Night air temperature, °F
September
October
November
0
12
24
36
48
60
72
84
96
50.5
61.1
72.3
44.5
51.5
58.9
| Day temperature | Night temperature |
Precipitation total, in.
September
October
November
0.0
0.6
1.1
1.7
2.2
2.8
3.4
3.9
3.3
2.9
1.8
Sunny, partly cloudy and cloudy days
September
October
November
0
5
10
15
20
25
30
35
21
14
9
3
6
7
6
11
14
| Cloudy days | Partly cloudy days | Sunny days |
weather in
winter
winter
| Portland |
weather in
spring
spring
| Portland |
weather in
summer
summer
| Portland |
weather in
autumn
autumn
| Portland |
Wind speed, mph
September
October
November
0.0
0.9
1.8
2.7
3.6
4.5
5.4
6.3
5.2
4.7
4.1
Average sunny hours
September
October
November
0
1
2
3
4
5
6
7
8
9
2.6
5.6
8.3
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Portland
Portland on a weather map
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Places in USA:
Name
°F
24 Hours Forecast
Portland
Local time: 10:58
April 06, sunday
1200
52°F
NE
1 mph
1 mph
1500
54°F
N
4 mph
4 mph
1800
54°F
E
2 mph
2 mph
2100
54°F
NW
3 mph
3 mph
April 07, monday
0000
50°F
N
1 mph
1 mph
0300
48°F
N
3 mph
3 mph
0600
48°F
NW
4 mph
4 mph
0900
50°F
N
7 mph
7 mph
