When to visit Seattle?
The decision rests on several criteria. Climate score, tourist crowds and feasible activities.
What you grasp in 5 seconds
Seattle offers 5 comfortable months, with 4 months to avoid (January, February, November, December). The gap is sharp: 8.9 in July vs 0.8 in December.
What to check next
Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.
Next action
Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.
How we calculate the score
The score combines 4 weighted criteria using 10 years of real climate data (ERA5).
Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →
Compare all 12 months
Month-by-month details: temperature, rain, sunshine, score and verdict.
| Month | T° min | T° max | Rain % | mm/day | Sun | Score | Verdict |
|---|---|---|---|---|---|---|---|
| 🌧️ January → | 37°F | 46°F | 45% | 5.7mm | 2.3h | 0.8/10 | Tough conditions |
| 🌧️ February → | 36°F | 46°F | 41% | 4.4mm | 3.9h | 1.0/10 | Tough conditions |
| 🌥️ March → | 39°F | 52°F | 38% | 3.5mm | 5.8h | 4.1/10 | Decent period |
| 🌥️ April → | 43°F | 55°F | 34% | 2.8mm | 6.9h | 4.3/10 | Decent period |
| ⛅ May → | 48°F | 64°F | 25% | 1.8mm | 8.2h | 7.4/10 | Best period |
| ☀️ June → | 54°F | 68°F | 22% | 1.7mm | 8.9h | 7.9/10 | Best period |
| ☀️ July → | 57°F | 75°F | 9% | 0.4mm | 10.1h | 8.9/10 | Best period |
| ☀️ August → | 59°F | 75°F | 13% | 0.8mm | 9.1h | 8.6/10 | Best period |
| ☀️ September → | 55°F | 68°F | 24% | 2.1mm | 7.4h | 7.7/10 | Best period |
| 🌥️ October → | 48°F | 59°F | 35% | 4.0mm | 4.6h | 4.3/10 | Decent period |
| 🌧️ November → | 43°F | 50°F | 45% | 5.6mm | 2.4h | 0.9/10 | Tough conditions |
| 🌧️ December → | 37°F | 46°F | 46% | 5.9mm | 1.7h | 0.8/10 | Tough conditions |
Seattle week by week: your odds of avoiding rain
For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.
Safest week: Jul 30 to Aug 5, mostly dry in 10 years out of 10 (0.2 rainy day(s) on average).
Most exposed: Dec 17 to Dec 23, mostly dry in 1 years out of 10 (4.0 rainy days on average).
| Jan | Jan 14/1045°F | Jan 82/1046°F | Jan 154/1046°F | Jan 225/1047°F | Jan 295/1046°F |
|---|---|---|---|---|---|
| Feb | Feb 55/1046°F | Feb 125/1046°F | Feb 196/1046°F | Feb 264/1049°F | |
| Mar | Mar 56/1049°F | Mar 127/1052°F | Mar 192/1053°F | Mar 265/1054°F | |
| Apr | Apr 24/1055°F | Apr 95/1054°F | Apr 166/1060°F | Apr 238/1059°F | Apr 306/1061°F |
| May | May 79/1065°F | May 143/1064°F | May 219/1065°F | May 288/1067°F | |
| Jun | Jun 46/1068°F | Jun 117/1067°F | Jun 188/1070°F | Jun 258/1074°F | |
| Jul | Jul 28/1074°F | Jul 910/1076°F | Jul 169/1077°F | Jul 2310/1078°F | Jul 3010/1079°F |
| Aug | Aug 69/1077°F | Aug 139/1078°F | Aug 208/1075°F | Aug 278/1074°F | |
| Sep | Sep 39/1074°F | Sep 108/1071°F | Sep 174/1066°F | Sep 247/1065°F | |
| Oct | Oct 18/1062°F | Oct 85/1060°F | Oct 155/1059°F | Oct 225/1056°F | Oct 292/1054°F |
| Nov | Nov 58/1052°F | Nov 123/1051°F | Nov 194/1049°F | Nov 265/1047°F | |
| Dec | Dec 35/1047°F | Dec 103/1046°F | Dec 171/1046°F | Dec 241/1044°F |
A specific date? The app computes the same figure day by day.
Annual temperatures — Seattle
Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.
For your trip
A few angles depending on what kind of trip you are planning.
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
🎟️ Activities & tours · Seattle
GetYourGuide selection · free cancellation
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.
Country · USA
🌡️ Climate
🏖️ Beach trip
Related destinations & guides
If this destination doesn't fit your dates, here are alternatives and guides.
Similar climate destinations
Vancouver 
La Rochelle 
Porto Nearby destinations
Guides & rankings
Where is Seattle ?
Global position + regional geographic context.