City of Sammamish in January
3.7out of 10
Not the best time
Cold: highs around 8°C. Very wet: about 19 rainy days.
8°CAvg high
2°CAvg low
19Rainy days (213 mm)
8:38 hDaylight
07:58Sunrise · 16:37 Sunset
Why this score
- Cold: highs around 8°C
- Very wet: about 19 rainy days
- Rain varies a lot between years (±5.1 days)
What to wear and pack
- A warm jacket
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in January varies a lot between years (±5.1 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 | 2°C | 213 mm | 19 | – | – | 3.7 |
| February | 9°C | 2°C | 149 mm | 15 | – | – | 4.7 |
| March | 12°C | 3°C | 166 mm | 19 | – | – | 4.6 |
| April | 15°C | 5°C | 137 mm | 17 | – | – | 5.4 |
| May | 18°C | 8°C | 98 mm | 14 | – | – | 6.6 |
| June | 21°C | 10°C | 81 mm | 12 | – | – | 7.3 |
| July | 24°C | 12°C | 34 mm | 7 | – | – | 8.2 |
| August | 25°C | 12°C | 41 mm | 6 | – | – | 8.3 |
| September | 21°C | 10°C | 85 mm | 9 | – | – | 7.8 |
| October | 15°C | 7°C | 168 mm | 15 | – | – | 5.5 |
| November | 10°C | 4°C | 227 mm | 19 | – | – | 4.2 |
| December | 7°C | 2°C | 206 mm | 18 | – | – | 3.6 |
Frequently asked questions
How hot is City of Sammamish in January?
Daytime highs average 8°C and nights about 2°C.
When is the best time to visit City of Sammamish?
The best months are August, July, September.