The best times to visit Bothell for ideal weather are

May 7th to October 7th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Bothell Travel Info

Weather in Bothell

Temperature

Average temperatures in Bothell vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 31st percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Bothell, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally mid August where highs are regularly around 77°F (25°C) with temperatures rarely dropping below 57°F (13.9°C) at night.

Bothell Temperatures (Fahrenheit)

Key
High
Average
Low

Bothell Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Bothell Perceived Temperature (F)

Key
High
Average
Low

Bothell Perceived Temperature (C)

Key
High
Average
Low

 

Average Bothell Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 45.6 40.4 36
Feb 48.6 42.4 37.5
Mar 52.2 44.6 39.2
Apr 56.3 47.7 41.6
May 63.2 53.5 47.1
Jun 67.9 57.9 51.2
Jul 74.5 62.8 55
Aug 74.7 63.4 55.8
Sep 69.2 59.4 52.9
Oct 59.2 52 46.9
Nov 50.3 44.6 39.9
Dec 44.5 39.7 35.5

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 7.6 4.7 2.2
Feb 9.2 5.8 3.1
Mar 11.2 7 4
Apr 13.5 8.7 5.3
May 17.3 11.9 8.4
Jun 19.9 14.4 10.7
Jul 23.6 17.1 12.8
Aug 23.7 17.4 13.2
Sep 20.7 15.2 11.6
Oct 15.1 11.1 8.3
Nov 10.2 7 4.4
Dec 6.9 4.3 1.9

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Bothell are July, August, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid September. For example, on the week of September 10th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid December with an average of 3 days of significant precipitation the week of December 17th.

When can you find snow in Bothell? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Bothell.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Bothell (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 33% 0 3.4
Feb 27% 0 2.4
Mar 39% 0 4.2
Apr 28% 0 2.7
May 20% 0 2.1
Jun 20% 0 2
Jul 8% 0 0.7
Aug 9% 0 1.2
Sep 18% 0 2.1
Oct 27% 0 3.3
Nov 40% 0 5
Dec 41% 0 5

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 33 0 8.6
Feb 27 0 6.1
Mar 39 0 10.7
Apr 28 0 6.9
May 20 0 5.3
Jun 20 0 5.1
Jul 8 0 1.8
Aug 9 0 3
Sep 18 0 5.3
Oct 27 0 8.4
Nov 40 0 12.7
Dec 41 0 12.7

 

Humidity and Wind

Bothell has some very humid months, and above average humidity throughout the year. The least humid month is July (60.7% relative humidity), and the most humid month is January (73.9%).

Wind in Bothell is usually calm. The windiest month is March, followed by January and November. March’s average wind speed of around 7.6 knots (8.8 MPH or 14.2 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid March where average top sustained speeds reach 16.7 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Bothell.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 6.5 Light breeze 12.8 Significant breeze
Feb 6.4 Light breeze 12.7 Significant breeze
Mar 7.6 Gentle breeze 14.8 Significant breeze
Apr 6.2 Light breeze 12.4 Significant breeze
May 5.4 Light breeze 10.6 Significant breeze
Jun 4.9 Light breeze 9.7 Gentle breeze
Jul 4.8 Light breeze 9.3 Significant breeze
Aug 4.6 Light breeze 9.2 Gentle breeze
Sep 4.7 Light breeze 9.7 Significant breeze
Oct 5.6 Light breeze 11.8 Significant breeze
Nov 6.5 Light breeze 13.4 Significant breeze
Dec 6.3 Light breeze 12.9 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 73.9%
Feb 68.4%
Mar 66.1%
Apr 62%
May 62.8%
Jun 63.3%
Jul 60.7%
Aug 61.3%
Sep 66%
Oct 71.6%
Nov 71.3%
Dec 71.9%

 

Is it Safe to Travel to Bothell?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Bothell, WA, US is July, followed by June and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Bothell in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 36.2 in November means 36.2% of the tourists vs. July.

 

 

Overall Bothell Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 66.2°F (19°C) and 49.1°F (9.5°C) with warmer temperatures in the later months. Rain is somewhat common with 6 to 12 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the least precipitation with 2 to 6 days of precipitation per month. June – August is the busiest season for tourism in Bothell, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 71.8°F (22.1°C) and 46.6°F (8.1°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 5 to 12 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Bothell to be enjoyable for warm weather travelers. The average high during this season is between 49.5°F (9.7°C) and 43.7°F (6.5°C). On average, it rains or snows a great amount: 8 to 13 times per month. These times of year are fairly slow with tourists.

 

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