‹ Portland, Maine weather by month
Typical August weather
Portland, Maine
Maine · August
79° days
60° nights
about 5 rainy days · 14 hours of daylight · ocean 63°
What to pack
- Sunscreen
What August feels like
August is the one month the ocean at Higgins Beach or Willard is genuinely pleasant rather than a dare, and it turns over fewer wet days than anything else on the calendar. It's also the busiest — book tables and Head Light parking accordingly, and hit the beaches on a weekday if you can.
Expect about 5 days with real rain — enough to notice, not enough to plan around. Humidity stays comfortable; the air never feels heavy.
Can you swim?
The ocean runs about 63° — cold — a quick dip takes resolve.
The numbers
| Typical high | 79° |
|---|---|
| Typical low | 60° |
| Days with real rain | 5 |
| Total rain | 3.6 in |
| Humidity | comfortable |
| Water temperature | 63° |
| Sunrise / sunset (mid-month) | 5:46 am / 7:44 pm |