The museum has an array of fascinating exhibits that are well worth checking out if you are ever in Seattle. A ride on the Washington State Ferries is also considered a must do for any trip to Seattle. December is a great time to escape to sunnier climates in order to avoid the harsh British winter that plagues the UK every year.
Whilst much of […]. When travelling back to the UK from your trip or holiday you are required to complete a Passenger Locator Form within 48 hours of your departure back to the UK. This is a straightforward form, however where you have to complete your valid PCR Test booking Reference on the form, it has to be letters […].
The calmest month of the year in Seattle is July , with an average hourly wind speed of 2. The wind is most often from the north for 2. The wind is most often from the south for 9.
Seattle is located near a large body of water e. This section reports on the wide-area average surface temperature of that water. The average water temperature experiences some seasonal variation over the course of the year. The time of year with warmer water lasts for 3. The time of year with cooler water lasts for 4. To characterize how pleasant the weather is in Seattle throughout the year, we compute two travel scores.
Based on this score, the best time of year to visit Seattle for general outdoor tourist activities is from early July to late August , with a peak score in the first week of August. Based on this score, the best time of year to visit Seattle for hot-weather activities is from mid July to mid August , with a peak score in the first week of August. For each hour between AM and PM of each day in the analysis period to , independent scores are computed for perceived temperature, cloud cover, and total precipitation.
Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. Our precipitation score , which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.
The growing season in Seattle typically lasts for 9. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature.
Based on growing degree days alone, the first spring blooms in Seattle should appear around April 8 , only rarely appearing before March 16 or after April This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents.
Shortwave radiation includes visible light and ultraviolet radiation. The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year. The brighter period of the year lasts for 3. The brightest month of the year in Seattle is July , with an average of 6. The darker period of the year lasts for 3.
The darkest month of the year in Seattle is December , with an average of 0. For the purposes of this report, the geographical coordinates of Seattle are The topography within 2 miles of Seattle contains only modest variations in elevation, with a maximum elevation change of feet and an average elevation above sea level of feet. Within 10 miles contains only modest variations in elevation 1, feet. Within 50 miles contains very significant variations in elevation 7, feet.
This report illustrates the typical weather in Seattle, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, to December 31, There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Seattle. For each station, the records are corrected for the elevation difference between that station and Seattle according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Seattle is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Seattle and a given station. To get a sense of how much these sources agree with each other, you can view a comparison of Seattle and the stations that contribute to our estimates of its temperature history and climate.
Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. All data relating to the Sun's position e. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a kilometer grid. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database.
Time zones for airports and weather stations are provided by AskGeo. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects.
We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: 1 are based on computer models that may have model-based errors, 2 are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and 3 have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.
Please review our full terms contained on our Terms of Service page. You're permitted to use this graph as long as you provide prominent attribution with a link back close to the use of the graph. The coldest month with the lowest average low temperature is December The month with the highest atmospheric pressure is January Months with the lowest atmospheric pressure are March , August and September The windiest month with the highest average wind speed is March 5.
The calmest months with the lowest average wind speed are July and August 3. The wettest month with the highest rainfall is December 0. The driest months with the least rainfall are July and August 0. The month with the highest number of rainy days is November 9. The month with the least rainy days is August 2. The month with the highest snowfall is February 0. The month with the highest number of snowfall days is February 1.
The best month for swimming with the highest average sea temperature is August The coldest month with the lowest average sea temperature is February The month with the longest days is June Average daylight: The month with the shortest days is December Average daylight: 8. The month with the most sunshine is August Average sunshine: The month with the least sunshine is December Average sunshine: 4. The month with the most sunshine days is August The month with the least sunshine days is November The month with the most cloud cover is December Cloud cover The month with the least cloud cover is August Cloud cover Washington, USA: February weather forecast and climate Seattle , WA.
Beautiful dusk skyline over the giant skyscrapers of Seattle, Washington.
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