Portland weather by month
The best time to visit Portland, United States is June. Pick a month for full climate normals and a verdict.
- Januarycold, soaked, clean air54tier D
- Februarycold, rainy, clean air60tier C
- Marchcool, rainy, clean air70tier B
- Aprilcool, rainy, clean air76tier B
- Maynice, a little rain, clean air87tier A
- Junewarm, a little rain, clean air96tier S
- Julyhot, dry, clean air94tier S
- Augusthot, dry, clean air89tier A
- Septemberwarm, a little rain, clean air92tier S
- Octobernice, rainy, clean air79tier B
- Novembercool, soaked, clean air62tier C
- Decembercold, soaked, clean air50tier D