Best Time to Visit Sammamish: Month-by-Month Guide
Best months for Sammamish: August, July.
- Best months for Sammamish: August, July.
- Peak season is August, July, September. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Shoulder season: June. Good weather without the busiest period.
- Wettest months: November, March, January.
- The least pleasant month is December (score 3.6).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 8°C | 2°C | 229 mm | 19 | – | – | 3.8 |
| February | 10°C | 2°C | 155 mm | 16 | – | – | 4.6 |
| March | 12°C | 4°C | 182 mm | 19 | – | – | 4.5 |
| April | 15°C | 5°C | 150 mm | 18 | – | – | 5.3 |
| May | 18°C | 8°C | 105 mm | 14 | – | – | 6.5 |
| June | 21°C | 10°C | 90 mm | 12 | – | – | 7.2 |
| July | 24°C | 12°C | 40 mm | 7 | – | – | 8.2 |
| August | 24°C | 12°C | 45 mm | 6 | – | – | 8.3 |
| September | 21°C | 10°C | 93 mm | 9 | – | – | 7.7 |
| October | 15°C | 7°C | 188 mm | 15 | – | – | 5.4 |
| November | 10°C | 4°C | 250 mm | 19 | – | – | 4.2 |
| December | 7°C | 2°C | 219 mm | 19 | – | – | 3.6 |
Frequently asked questions
When is the best time to visit Sammamish?
The best months are August, July.
When is the rainy season in Sammamish?
The wettest months are November, March, January.