Climate & Weather in Yokohama

Post date: Thursday, March 16, 2017

For foreign expats moving to Yokohama from countries overseas as well as ones moving to Yokohama from other areas in Japan, we here provide the guidance on Yokohama weather. It will make us happy if it can help you to prepare for your seasonal clothing and more for your life in Japan.

Yokohama, like most of the world, has a fair amount of seasonal variation in its weather patterns. For the most part, the weather is fairly mild and generally quite pleasant though there is a typhoon (also known as a hurricane or tropical cyclone) season that runs from May to December when the weather can get very bad, very quickly if a storm is passing by.

Rainfall Level & Average Temperature in Yokohama (2019)

The below is the Rainfall Level and Average Temperature in Yokohama. Rainfall is more frequent from March through October, during which includes Rainy Season in June-July and Typhoon peak season in August - September in Yokohama. As Yokohama lies the south of Tokyo, the data shows that monthly rainfall is slightly more than in Tokyo and monthly temperature is slightly higher than in Tokyo.

  Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sept. Oct. Nov. Dec.
Rainfall Level(mm) 14.5 48.5 101 93.5 152.5 271 175 86.5 282 464.5 114 134
Max.Temp( °C) 11 11.7 15.1 18.6 24.7 25.8 27.4 32.7 29.3 23.2 17.8 13.4
Ave.Temp( °C) 6.6 7.9 11 13.9 19.8 21.9 24.3 28.4 25.3 19.9 14 9.4
Min.Temp( °C) 2.9 4.6 7.3 10.3 16.1 19.1 22 25.7 22.6 17.1 10.6 6.3

Average Temperature & Humidity in Yokohama (2019)

  1月 2月 3月 4月 5月 6月 7月 8月 9月 10月 11月 12月
Ave.Temp( °C) 6.6 7.9 11 13.9 19.8 21.9 24.3 28.4 25.3 19.9 14 9.4
Ave.Temp( °F) 43.88 46.22 51.8 57.02 67.64 71.42 75.74 83.12 77.54 67.82 57.2 48.92
Humidity(%) 48 57 58 61 66 79 86 77 75 76 65 64

Unlike the average data for the past several years, days of intense heat and the highest temperature more than 35 degree continue in summer due to global warming and heat island effects, and so we cannot spend a day without air conditioner.

Seasonal Clothing (for Yokohama & Vicinity)

  • Spring (Mar. - May): Light jacket and sweater
  • Summer (Jun. - Aug.): Light clothing, short sleeves
  • Autumn (Sep. - Nov.): same as Spring
  • Winter (Dec. - Feb.): Topcoat, wool suit, warm sweater and jacket

The best times to visit are April-May, for the well-known blooming of cherry blossoms with pleasant climate, and October-November for autumn leaves changing and enjoyable climate. It can get hot and extremely muggy in July-August. Winter seldom brings snow and only a few days per year the temperatures drop below freezing. It is also helpful for you to see Seasonal Clothing idea above.

The Weather in Yokohama and Advice for Every Season

Yokohama is a big city and most people get around using public transit, bikes, or their feet. Here are a few tips & tricks to make surviving close encounters with Mother Nature a little easier:

■ Precipitation

Always check the forecast before you leave for the day and pack an umbrella if rain is predicted. It's no fun being caught in a downpour and waiting under the corner of a ramen shop's roof waiting for the rain to pass.

o Pro tip: If you miss the weather forecast, stick your head outside before you leave for the day and see if others are carrying umbrellas and follow their lead. If you do get stuck in the wet, you can always duck into the nearest convenience store for a cheap umbrella—they're everywhere!

■ Heat

It can get quite hot in Yokohama so dress accordingly. Yokohama is a concrete jungle that displays the "heat island" effect common in big metropolitan areas.

o Pro tip: If you're going to work, check and see if your office follows a "cool biz" dress code which is a set of comparatively relaxed dress guidelines encouraged by the Japanese government to help make life more comfortable for office-workers in the summer.