Best Time-of-Year
The best month at Portland is April, when temperatures average 7–13 °C (45–55 °F) and mid-day humidity sits around 71%. Expect cool days, with around 9 excellent days in a typical April. April, May, and June are the most reliable months.
- Terrible
- Poor
- Fair
- Good
- Excellent
- Perfect
Tap a month for its details below.
Month by Month
January
A typical January brings rainy, cool days, with around 9 climbable days. Cold takes out most of the rest.
February
A typical February brings rainy, cool days, with around 11 climbable days. Cold takes out most of the rest.
March
A typical March brings rainy, cool days, with around 4 excellent days. Cold takes out most of the rest.
April
April is the year's best month for climbing — expect cool days, with around 9 excellent days.
May
May is among the year's most reliable months — expect mild days, with around 9 excellent days.
June
June is among the year's most reliable months — expect mild days, with around 7 excellent days.
July
A typical July brings mild days, with around 4 excellent days.
August
A typical August brings mild days, with around 4 excellent days.
September
A typical September brings rainy, mild days, with around 5 excellent days.
October
A typical October brings rainy, mild days, with around 3 excellent days. Rain takes out most of the rest.
November
A typical November brings rainy, cool days, with around 11 climbable days. Rain takes out most of the rest.
December
A typical December brings rainy, cool days, with around 7 climbable days. Cold takes out most of the rest.
A Typical Year
| Month | Excellent Days | Viable Days | Off Days | Temperature | Wet Days | Mid-Day Humidity |
|---|---|---|---|---|---|---|
| January | 0 | 9 | 22 | 4–8 °C 40–47 °F | 13 | 80% |
| February | 0 | 11 | 17 | 6–9 °C 43–49 °F | 14 | 80% |
| March | 4 | 10 | 17 | 6–10 °C 43–51 °F | 14 | 76% |
| April | 9 | 12 | 9 | 7–13 °C 45–55 °F | 10 | 71% |
| May | 9 | 13 | 9 | 10–16 °C 50–61 °F | 10 | 72% |
| June | 7 | 17 | 6 | 13–19 °C 55–66 °F | 7 | 71% |
| July | 4 | 21 | 6 | 15–20 °C 58–69 °F | 7 | 71% |
| August | 4 | 21 | 6 | 15–20 °C 59–69 °F | 8 | 71% |
| September | 5 | 14 | 11 | 13–19 °C 56–65 °F | 13 | 73% |
| October | 3 | 12 | 16 | 12–16 °C 53–61 °F | 16 | 77% |
| November | 1 | 11 | 18 | 8–12 °C 46–54 °F | 14 | 78% |
| December | 0 | 7 | 24 | 6–10 °C 43–49 °F | 15 | 82% |