Portland vs Eugene: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 170 km apart · long-term climate normals (NASA POWER, 2001–2020)
Eugene is the sunnier overall: about 2,248 hours of sunshine a year to Portland's 2,058. Eugene has the higher Sunshine Score in 7 of 12 months, Portland in 1 (4 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Portland | Eugene | |
|---|---|---|
| Sunshine hours / year | 2,058 | 2,248 |
| Sunniest month | July (89/100) | July (90/100) |
| Nov–Feb average score | 5/100 | 12/100 |
| Jun–Aug average score | 86/100 | 88/100 |
| Rain / year | 1,484 mm | 1,375 mm |
| Peak midday UV | 7 (high) | 8 (very high) |
Portland vs Eugene month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Portland | Eugene | Portland | Eugene | Portland | Eugene | |
| January | 0 | 11 | 8° | 10° | 216 | 196 |
| February | 5 | 11 | 9° | 10° | 144 | 142 |
| March | 21 | 21 | 12° | 12° | 178 | 169 |
| April | 40 | 41 | 15° | 15° | 119 | 122 |
| May | 70 | 65 | 19° | 18° | 79 | 75 |
| June | 81 | 83 | 22° | 21° | 55 | 48 |
| July | 89 | 90 | 28° | 25° | 11 | 8 |
| August | 87 | 90 | 29° | 27° | 20 | 13 |
| September | 80 | 83 | 25° | 24° | 57 | 50 |
| October | 55 | 59 | 18° | 18° | 137 | 113 |
| November | 16 | 21 | 11° | 12° | 217 | 196 |
| December | 0 | 5 | 7° | 9° | 251 | 243 |
The sunnier month by month: Jan Eugene · Feb Eugene · Mar even · Apr even · May Portland · Jun even · Jul even · Aug Eugene · Sep Eugene · Oct Eugene · Nov Eugene · Dec Eugene.
When to pick which
- November–February: Eugene (average score 12/100 vs 5). Daytime highs are similar (9°C vs 10°C). See the winter sun ranking.
- March–May: too close to call — Portland averages 44/100, Eugene 42/100. Daytime highs are similar (15°C vs 15°C).
- June–August: too close to call — Portland averages 86/100, Eugene 88/100. Portland is the warmer, around 26°C daytime highs vs 24°C.
- September–October: Eugene (average score 71/100 vs 68). Daytime highs are similar (22°C vs 21°C).
Full month-by-month guides: Portland weather by month · Eugene weather by month · Best time to visit United States.
More comparisons: Portland vs Seattle · Portland vs Medford · Portland vs Redmond · Eugene vs Medford · Eugene vs Redmond · all head-to-heads