Olympia in December
3.8out of 10
Not the best time
Cold: highs around 7°C. Very wet: about 17 rainy days.
7°CAvg high
3°CAvg low
17Rainy days (205 mm)
8:19 hDaylight
07:58Sunrise · 16:17 Sunset
Why this score
- Cold: highs around 7°C
- Very wet: about 17 rainy days
- Rain varies a lot between years (±4.5 days)
What to wear and pack
- A warm jacket
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in December varies a lot between years (±4.5 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 8°C | 3°C | 194 mm | 18 | – | – | 3.9 |
| February | 9°C | 3°C | 137 mm | 14 | – | – | 4.9 |
| March | 12°C | 5°C | 160 mm | 17 | – | – | 4.8 |
| April | 15°C | 6°C | 121 mm | 15 | – | – | 5.7 |
| May | 18°C | 9°C | 75 mm | 11 | – | – | 7.1 |
| June | 21°C | 11°C | 46 mm | 8 | – | – | 7.9 |
| July | 25°C | 13°C | 16 mm | 3 | – | – | 8.7 |
| August | 25°C | 13°C | 26 mm | 4 | – | – | 8.6 |
| September | 22°C | 11°C | 54 mm | 7 | – | – | 8.2 |
| October | 16°C | 8°C | 129 mm | 13 | – | – | 6.1 |
| November | 10°C | 5°C | 212 mm | 18 | – | – | 4.2 |
| December | 7°C | 3°C | 205 mm | 17 | – | – | 3.8 |
Frequently asked questions
How hot is Olympia in December?
Daytime highs average 7°C and nights about 3°C.
When is the best time to visit Olympia?
The best months are July, August, September.