Portland · WinterMonth summary
Portland weather in December
❌ Poor
🌡️ Temperature min / max
2°C – 8°C
🌧 Rainy days
61% of days
☀️ Sunshine
3.8h per day on average
🌊 🌊 Season
Winter
⭐ ⭐ Weather score
1.4/10
📅 📅 Best month
July (10.0/10)
Quick decision
Should you visit Portland in December?
❌ Poor
✅ Yes if: you enjoy winter atmosphere and the lowest prices of the year.
❌ No if: you're looking for sunshine or outdoor activities.
Our take: December brings a challenging climate (1.4/10). July offers milder conditions if your dates are flexible.
By trip type
Portland in December by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ❌ Not recommended
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in December
🎯 Tourist low season — museums and monuments without queues Winter in Portland is cool (8°C during the day). Days are short (3.8h of sunshine) but the city reveals a different side. With 61% of rainy days, always have indoor alternatives planned.
Browse by month
All months for Portland
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 2°C | 8°C | 61% | 6.2 | 3.9h | 1.4/10 |
| 🌦️ February | 2°C | 9°C | 60% | 5.4 | 5.5h | 2.2/10 |
| 🌦️ March | 3°C | 11°C | 60% | 4.7 | 8.2h | 4.0/10 |
| 🌦️ April | 5°C | 15°C | 51% | 3.7 | 10.2h | 5.6/10 |
| 🌤️ May | 9°C | 19°C | 36% | 2.4 | 11.9h | 7.3/10 |
| 🌤️ June | 12°C | 23°C | 26% | 2.0 | 13.5h | 8.3/10 |
| ☀️ July | 14°C | 28°C | 7% | 0.3 | 14.5h | 10.0/10 |
| ☀️ August | 15°C | 29°C | 9% | 0.4 | 13.0h | 9.3/10 |
| 🌤️ September | 13°C | 24°C | 25% | 2.1 | 11.3h | 8.1/10 |
| 🌦️ October | 8°C | 16°C | 42% | 4.7 | 8.2h | 5.9/10 |
| 🌦️ November | 5°C | 11°C | 58% | 6.5 | 5.4h | 3.0/10 |
| 🌦️ December | 2°C | 8°C | 61% | 6.9 | 3.8h | 1.4/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In December, Portland averages 8°C, 61% rainy days and 3.8h of sunshine per day. Overall weather score: 1.4/10.
See methodology →
Comparison
December vs July (best month)
The best month is July (score 10.0/10). Difference:
- 🌡️ Max temperature : +20°C
- 🌧 Rainy days : -54%
- ☀️ Sunshine : +10.7h/day
FAQ
FAQ — Portland in December
Is December a good time to visit Portland?
December is not recommended for Portland (score 1.4/10). With 61% rainy days and 3.8h of sunshine, consider July (10.0/10) instead.
Does it rain a lot in Portland in December?
Yes, 61% of days see rain in December. Plan some indoor activities as backup.
Accommodation
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Activities & tours
Activities and tours in Portland
Guided tours, skip-the-line tickets and local experiences.
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