The best times to visit Yakushima for ideal weather are
March 12th to June 17th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Yakushima Travel Guide
Other Yakushima Travel Info
Weather in Yakushima
Average temperatures in Yakushima vary greatly. Considering humidity, temperatures feel nice most of the year, excluding some hot weeks in the summer, with a chance of precipitation throughout most of the year. The area is less temperate than some — in the 33rd 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 Yakushima, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 88.4°F (31.3°C) with temperatures rarely dropping below 76.4°F (24.7°C) at night.
Yakushima Temperatures (Fahrenheit)
Yakushima Temperatures (Celsius)
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.
Yakushima Perceived Temperature (F)
Yakushima Perceived Temperature (C)
Average Yakushima 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.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Yakushima are July, October, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late July. For example, on the week of July 23rd there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in mid June with an average of 5 days of significant precipitation the week of June 18th.
When can you find snow in Yakushima? 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 Yakushima.
Snow on the Ground
The graph below shows the average snow on the ground in Yakushima (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Yakushima has some extremely humid months, with other comfortably humid months. The least humid month is January (57.7% relative humidity), and the most humid month is June (82.5%).
Wind in Yakushima is usually moderate. The windiest month is January, followed by February and December. January’s average wind speed of around 12.3 knots (14.1 MPH or 22.7 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid February where average top sustained speeds reach 21.9 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Yakushima.
The graph below shows wind speed (max and average) in knots.
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||12.3||Significant breeze||19.5||Strong breeze|
|Feb||12.2||Significant breeze||19.6||Strong breeze|
|Mar||11.9||Significant breeze||19.1||Strong breeze|
|Apr||10.3||Gentle breeze||17.5||Strong breeze|
|May||8.7||Gentle breeze||14.9||Strong breeze|
|Jun||6.8||Light breeze||13.3||Significant breeze|
|Jul||6.8||Light breeze||12.1||Strong breeze|
|Aug||7.7||Gentle breeze||12.8||Significant breeze|
|Sep||8.2||Gentle breeze||14.2||Strong breeze|
|Oct||10.5||Gentle breeze||17.2||Strong breeze|
|Nov||10.6||Gentle breeze||17.3||Strong breeze|
|Dec||12.1||Significant breeze||19.5||Strong breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Yakushima?
Our best data indicates this area is generally safe, except in a few regions. As of Oct 07, 2019 there are regional travel advisories for Japan; exercise normal security precautions and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 01, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Yakushima, Japan is February, followed by March and July. 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 Yakushima in October. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Yakushima Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 76.9°F (24.9°C) and 61.5°F (16.4°C) with warmer temperatures in the later months. Rain is very common with 10 to 12 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 8 to 19 days of precipitation per month. June – August is the busiest season for tourism in Yakushima, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 85.9°F (29.9°C) and 66.2°F (19°C), which will feel very nice given the humidity and wind. It rains or snows a good amount: 9 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 Yakushima to be enjoyable for warm weather travelers. The average high during this season is between 64°F (17.8°C) and 56.5°F (13.6°C). On average, it rains or snows a great amount: 11 to 14 times per month. These times of year are the second busiest with tourists.