Live data
Dew Point Today in Seattle
The current dew point in Seattle, WA, what comfort level it falls into, and what that means for running, sleeping, and working outdoors today.
Seattle is often rainy but rarely muggy. Dew points stay in the 40s and 50s almost all year, which is why summer here feels so comfortable.
Current Dew Point in Seattle, WA
7-Day Dew Point Forecast
Today and tomorrow at a glance — the next seven days of dew point at Seattle, WA, so you can see the sticky ones coming.
Dew Point Today, Hour by Hour
The next 24 hours of dew point at Seattle, WA, in local time. The quiet stretches are usually the early morning — dew point climbs through the afternoon and eases after sunset.
Dew Point Around Seattle and Nearby Cities
Humidity changes fast across short distances — a lake breeze or a hill can move the dew point by several degrees. These readings refresh with the page.
| Location | Dew point now | Compared to Seattle | Feels like |
|---|---|---|---|
| Seattle, WA — this page | … | — | … |
| Bellevue, WA | … | — | … |
| Everett, WA | … | — | … |
| Tacoma, WA | … | — | … |
| Olympia, WA | … | — | … |
Dew Point Records and Averages in Seattle
Seattle's humidity has a long memory. Using 30 years of reanalysis data (1995–2024) for the coordinates of Seattle, WA, the numbers below are what this city actually does — not a national average applied to it. These are the highest values in that reanalysis period, not an official observing-station record.
- Highest dew point in reanalysis
- 70°F
- September 24, 1997
- Typical August peak
- 57°F
- Median 55°F — August is the hardest month
- When it eases off
- —
- The median dew point stays below the sticky range for most of the year — this city never gets a real sticky season.
So if someone asks what the average dew point in Seattle is, the honest answer is that it depends on the month — but the range is narrow: this is a city where the median dew point stays below the sticky line almost all year. The month-by-month table above shows exactly where it peaks. See the comfort scale →
Dew Point in Seattle by Month
Typical dew point for each month in Seattle, WA — the middle 50% of days (25th to 75th percentile) from 1995–2024 of reanalysis data, with the median for the month.
| Month | Typical range | Median | Feels like |
|---|---|---|---|
| January | 32–41°F | 37°F / 2.8°C | Dry |
| February | 32–40°F | 36°F / 2.2°C | Dry |
| March | 35–41°F | 38°F / 3.3°C | Dry |
| April | 38–44°F | 40°F / 4.4°C | Dry |
| May | 43–49°F | 46°F / 7.8°C | Dry |
| June | 47–53°F | 50°F / 10°C | Very comfortable |
| July | 51–56°F | 54°F / 12.2°C | Very comfortable |
| Augusthardest | 52–57°F | 55°F / 12.8°C | Comfortable |
| September | 49–55°F | 52°F / 11.1°C | Very comfortable |
| October | 43–50°F | 47°F / 8.3°C | Dry |
| November | 36–45°F | 41°F / 5°C | Dry |
| December | 32–40°F | 36°F / 2.2°C | Dry |
August is the hardest month in Seattle — the median dew point is 55°F (12.8°C) and the muggiest quarter of days sit in the 52–57°F band. February is the most comfortable, at a median of 36°F (2.2°C).
Today’s reading is at the top of this page — compare it against the table to see whether you are in a normal stretch or an unusual one. What is a comfortable dew point? →
What This Dew Point Means in Seattle
Whatever the reading above says, the interpretation is the same everywhere. Below 55°F you can go at full effort outdoors. Between 55°F and 65°F it is pleasant to slightly sticky. From 65°F to 70°F most people feel genuinely uncomfortable and outdoor workouts get harder. Above 70°F, sweat stops cooling you efficiently — move exercise to early morning and take heat safety seriously.
Dew Point in Seattle — Frequently Asked Questions
What's the highest dew point ever in Seattle?
The highest value in Seattle's 1995–2024 reanalysis record is 70°F, reached on September 24, 1997. That is the same 30-year window the monthly table above uses — not an official observing-station record, which is a different and shorter dataset. The median August dew point reaches about 55°F, so the all-time mark sits roughly 15°F above a normal summer high.
Is Seattle more humid or dry?
Dry for most of the year. Seattle never reaches the sticky range — its highest monthly median is 55°F.
Is Bellevue as humid as Seattle?
The two cities share the same air mass, so their sticky days line up closely — when one turns muggy, the other usually does within a day. The table above shows the current readings side by side.
What is a comfortable dew point in Seattle?
The comfort scale is the same everywhere: a dew point between 50°F and 60°F (10–16°C) feels comfortable to most people in Seattle, 60–65°F starts to feel sticky, and anything above 70°F feels oppressive. Local climate changes how often you see each range, not how it feels.
How often does the Seattle dew point update?
The reading on this page refreshes every 30 minutes from Open-Meteo, and the timestamp shown is Seattle local time. Dew point moves slowly compared with air temperature, so a recent reading is reliable for planning the next few hours.
Why is dew point better than the humidity percentage?
Relative humidity changes meaning with the temperature — 50% is dry on a cool morning and oppressive on a hot afternoon. Dew point is absolute, so 65°F always represents the same amount of moisture and the same sticky feeling.
← Back to the dew point chart | Dew point vs humidity: why it matters →