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 air53tier D
- Februarycold, rainy, clean air58tier D
- Marchcool, rainy, clean air69tier C
- Aprilcool, rainy, clean air75tier B
- Maynice, a little rain, clean air87tier A
- Junewarm, a little rain, clean air95tier S
- Julyhot, dry, clean air93tier S
- Augusthot, dry, clean air86tier A
- Septemberwarm, a little rain, clean air90tier S
- Octobernice, rainy, clean air77tier B
- Novembercool, soaked, clean air61tier C
- Decembercold, soaked, clean air48tier F