Best Time to Visit Portland
The best time to visit Portland is July, August and June.
Best Months
July, August, June
Climate Type
Temperate
Avoid
February, December
Monthly Weather Overview
Jan
7.8°
1.2°
Poor
100.5mm
Feb
8.2°
1.5°
Poor
171.8mm
Mar
12.4°
5.2°
Poor
210mm
Apr
16.7°
6.1°
Fair
56.7mm
May
19.9°
9.2°
Fair
54.4mm
Jun
24.4°
12.6°
Excellent
37.5mm
Jul
28.6°
14.9°
Excellent
3.5mm
Aug
29°
16.7°
Excellent
17.9mm
Sep
24.9°
13.8°
Excellent
37.7mm
Oct
15.7°
8.1°
Poor
180.4mm
Nov
12°
6.6°
Poor
207.8mm
Dec
10.4°
5.7°
Poor
257.3mm
Seasonal Guide
🌸
Fair
Spring (Mar-May)
11.6°C
Avg Temp
44.5/100
Score
☀️
Excellent
Summer (Jun-Aug)
21.1°C
Avg Temp
93.4/100
Score
🍂
Fair
Autumn (Sep-Nov)
13.5°C
Avg Temp
49.1/100
Score
❄️
Poor
Winter (Dec-Feb)
5.8°C
Avg Temp
20.8/100
Score