Seattle Väder Prognos
Seattle weather: 10°C, mest klart. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Seattle weather in september
A good month och visit Seattle.
september runs 5°C warmer than the annual average in Seattle.
Väder map for Seattle
Animated model layers. Pick a layer och load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Klimat in Seattle month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Månad | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januari | 8° | 3° | 141 mm | ★★☆☆☆ |
| februari | 9° | 3° | 110 mm | ★★★☆☆ |
| mars | 11° | 5° | 143 mm | ★★★☆☆ |
| april | 14° | 7° | 62 mm | ★★★★☆ |
| maj | 18° | 10° | 47 mm | ★★★★☆ |
| juni | 22° | 13° | 33 mm | ★★★★★ |
| juli | 25° | 15° | 12 mm | ★★★★★ |
| augusti | 25° | 15° | 33 mm | ★★★★★ |
| september | 21° | 13° | 42 mm | ★★★★☆ |
| oktober | 15° | 9° | 103 mm | ★★★☆☆ |
| november | 11° | 6° | 154 mm | ★★☆☆☆ |
| december | 10° | 5° | 218 mm | ★★☆☆☆ |
Klimat type: Temperate. Källa: Open-Meteo archive (ERA5).
Bästa tiden att besöka Seattle
Go in juni, juli and augusti. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januari, november and december - expect the least comfortable mix of heat, cold or rain.
What och pack, what och skip
- Layers - the daily swing is 15°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid januari, november and december - historically the least comfortable months here.
How Seattle compares med nearby places
Annual averages, and the difference against Seattle.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| King County | 0 km | 12°C | about the same | 1098 mm |
| deception Pass State Park | 92 km | 10°C | 1°C cooler | 1059 mm |
| Mount Regnier National Park | 93 km | -3°C | 15°C cooler | 2606 mm |
| Mount Regnier | 94 km | -15°C | 26°C cooler | 2606 mm |
| Olympic National Park | 98 km | 4°C | 8°C cooler | 2933 mm |
Se prognosen för Seattle per tidsintervall
Seattle weather - more answers
Explore Seattle
Every topic we hold for this place, and the same topic for the places around it.
Väder for related places
Frequently asked questions
Where is Seattle?
Seattle is a city in Washington. Its coordinates are 47.6062, -122.3321. It lies in Nordamerika.
What is the weather like in Seattle just nu?
It is currently 10°C (50°F) med mest klart. Luftfuktighet is 75% and wind is 5 km/h.
When is the best time och visit Seattle?
juni, juli and augusti offer the most comfortable conditions in Seattle, which has a temperate climate. januari, november and december are usually the hardest months for outdoor plans.
What time zone is Seattle in?
Seattle observes America/Los_Angeles (UTC-07:00). The local time is 11:57 PM.
How many people live in Seattle?
Seattle has a population of approximately 750.000.
What is the nearest airport och Seattle?
The closest airports are Seattle-Tacoma International Airport (SEA), 17 km away, Vancouver International Airport (YVR), 188 km away and Portland International Airport (PDX), 225 km away.
What are the top things och do in Seattle?
Popular options include Space Needle, deception Pass State Park, Mount Regnier National Park, Mount Regnier, Olympic National Park and North Cascades National Park.
What places are in Seattle?
Seattle covers 4 places in this atlas, including Seattle-Tacoma International Airport, Space Needle, ZIP Code 98101 and Area Code 206.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Väder Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated september 30, 2026 at 11:57 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
