Temperature
Cold by day, cold at night.
Not the best time: Cold weather and some snow or mixed precipitation are the main limitations.

Cold by day, cold at night.
Some snow or mixed precipitation is possible this month.
Wintry precipitation and cloud limit sunshine.
Humidity is rarely noticeable in the cool air.
In December, afternoons feel about 37° and nights feel near 33°.
Overcast skies this month.
Calm winds are typical in December.
December late afternoons are around 42°F, easing to about 40°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 45 | 38 | 12.3 | 19 | 1.9 | 87 | 47 |
| Feb | 47 | 37 | 7.3 | 16 | 3.2 | 82 | 47 |
| Mar | 51 | 40 | 10.1 | 20 | 4.3 | 80 | 48 |
| Apr | 57 | 43 | 6.5 | 16 | 6.2 | 76 | 50 |
| May | 64 | 49 | 4.8 | 13 | 7.2 | 75 | 53 |
| Jun | 69 | 54 | 3.6 | 11 | 7.6 | 75 | 56 |
| Jul | 75 | 58 | 1.8 | 6 | 9.3 | 73 | 58 |
| Aug | 76 | 59 | 2.5 | 7 | 8.9 | 75 | 59 |
| Sep | 69 | 55 | 5.3 | 11 | 7.1 | 81 | 57 |
| Oct | 58 | 48 | 10.3 | 17 | 3.9 | 85 | 53 |
| Nov | 49 | 42 | 13.6 | 19 | 2.0 | 88 | 50 |
| Dec | 44 | 37 | 12.4 | 20 | 1.8 | 88 | 48 |
Similar climates
Want a side-by-side climate view? Compare Vancouver with Portland.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology