Olympia (WA)
December
Weather in Olympia, Washington for December 2026
Your guide to Olympia weather in December - trends and predictions
Olympia experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 433.7 mm.
Is December a good time to visit Olympia? check out the best time to travel to Olympia page.
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Rain 🌧️
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10
Dry days
21
Rainy days
0
Snow days
8°/4°
Temperatures
15 km/h
Avg max wind
87 %
Avg humidity
Olympia Weather December
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Temperatures trend during December in Olympia
See the weather trend as well as the moving average line
December weather in Olympia day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 5° /1° | 0 mm | 1 | |
| Dec. 2 |  Patchy rain possible | 5° /2° | 1.5 mm | 1 | |
| Dec. 3 | Overcast | 4° /1° | 0 mm | 1 | |
| Dec. 4 | Overcast | 7° /1° | 0 mm | 1 | |
| Dec. 5 |  Light rain | 9° /4° | 7.9 mm | 1 | |
| Dec. 6 | Overcast | 9° /6° | 0 mm | 1 | |
| Dec. 7 |  Moderate rain | 10° /6° | 17.7 mm | 1 | |
| Dec. 8 |  Heavy rain | 10° /7° | 78.6 mm | 0.9 | |
| Dec. 9 | Heavy rain | 9° /5° | 29.1 mm | 0.9 | |
| Dec. 10 | Heavy rain | 8° /5° | 39.3 mm | 0.9 | |
| Dec. 11 | Light rain | 10° /5° | 2.8 mm | 0.9 | |
| Dec. 12 | Patchy rain possible | 9° /6° | 1.4 mm | 0.9 | |
| Dec. 13 | Light rain | 10° /7° | 4.3 mm | 0.9 | |
| Dec. 14 |  Heavy rain at times | 9° /7° | 9.4 mm | 0.9 | |
| Dec. 15 | Moderate rain | 9° /7° | 17.8 mm | 0.9 | |
| Dec. 16 | Heavy rain at times | 9° /6° | 16.2 mm | 0.9 | |
| Dec. 17 | Heavy rain | 10° /6° | 35.5 mm | 0.9 | |
| Dec. 18 | Heavy rain | 10° /5° | 37.7 mm | 0.9 | |
| Dec. 19 | Heavy rain at times | 9° /5° | 9.4 mm | 0.9 | |
| Dec. 20 | Light rain | 9° /7° | 6.4 mm | 0.9 | |
| Dec. 21 | Moderate rain | 8° /6° | 19.8 mm | 0.9 | |
| Dec. 22 | Moderate rain | 8° /6° | 14.5 mm | 0.9 | |
| Dec. 23 | Light rain | 8° /6° | 6.8 mm | 0.9 | |
| Dec. 24 | Moderate rain | 9° /5° | 17.2 mm | 0.9 | |
| Dec. 25 | Moderate rain | 7° /5° | 22.2 mm | 0.9 | |
| Dec. 26 | Moderate rain | 8° /4° | 15.5 mm | 0.9 | |
| Dec. 27 | Heavy rain at times | 7° /4° | 9.1 mm | 0.9 | |
| Dec. 28 |  Moderate rain at times | 7° /4° | 5.5 mm | 0.9 | |
| Dec. 29 | Heavy rain at times | 6° /2° | 5 mm | 0.9 | |
| Dec. 30 | Patchy rain possible | 4° /2° | 1.5 mm | 0.9 | |
| Dec. 31 | Patchy rain possible | 6° /2° | 1.1 mm | 0.9 | |
| Next | |||||
Important Notice
Our weather forecast for Olympia in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Olympia forecast closer to your planned date for the most up-to-date weather information.
Change Month
Olympia in December - FAQ
What are the expected maximum and minimum temperatures in Olympia during December?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 4°.
How much rainfall should be expected in Olympia during December?
Significant rainfall exceeding 433.7 mm is expected in Olympia during December, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Olympia in December 2026?
Olympia typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Olympia during December?
The average wind speed in Olympia during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Olympia
Explore the daily rainfall trends and prepare for Olympias December weather 💧
Typically, Olympia has 21 rainy days in December with a total of 433.7 mm of rainfall.
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