The best times to visit Izu Peninsula for ideal weather are
April 9th to July 8th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Izu Peninsula Travel Guide
Other Izu Peninsula Travel Info
Weather in Izu Peninsula
Average temperatures in Izu Peninsula vary greatly. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 35th 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 Izu Peninsula, 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 85.8°F (29.9°C) with temperatures rarely dropping below 76.6°F (24.8°C) at night.
Izu Peninsula Temperatures (Fahrenheit)
Izu Peninsula 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.
Izu Peninsula Perceived Temperature (F)
Izu Peninsula Perceived Temperature (C)
Average Izu Peninsula 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 Izu Peninsula are August, January, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid August. For example, on the week of August 13th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid June with an average of 4 days of significant precipitation the week of June 18th.
When can you find snow in Izu Peninsula? 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 Izu Peninsula.
Snow on the Ground
The graph below shows the average snow on the ground in Izu Peninsula (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
Izu Peninsula has some extremely humid months, with other moderately humid months on the other side of the year. The least humid month is January (49.8% relative humidity), and the most humid month is July (85.1%).
Wind in Izu Peninsula is usually moderate. The windiest month is December, followed by March and February. December’s average wind speed of around 10.7 knots (12.4 MPH or 19.9 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 March where average top sustained speeds reach 19.4 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Izu Peninsula.
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||9.4||Gentle breeze||16.3||Significant breeze|
|Feb||9.5||Gentle breeze||17||Strong breeze|
|Mar||10||Gentle breeze||18.4||Significant breeze|
|Apr||9.4||Gentle breeze||17.3||Strong breeze|
|May||8.2||Gentle breeze||16||Significant breeze|
|Jun||7.4||Gentle breeze||14.6||Significant breeze|
|Jul||6.9||Light breeze||12.2||Significant breeze|
|Aug||7.2||Gentle breeze||12.3||Significant breeze|
|Sep||7.9||Gentle breeze||15.1||Significant breeze|
|Oct||8.7||Gentle breeze||16.3||Significant breeze|
|Nov||8.7||Gentle breeze||15.6||Significant breeze|
|Dec||10.7||Gentle breeze||17.9||Strong breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Izu Peninsula?
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 Izu Peninsula, Japan is January, followed by March and April. 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 Izu Peninsula in December. 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 Izu Peninsula Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 71.9°F (22.2°C) and 54.3°F (12.4°C) with warmer temperatures in the later months. Rain is somewhat common with 8 to 10 days of significant precipitation per month. Spring is the 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 very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 4 to 10 days of precipitation per month. June – August is fairly slow season for tourism in Izu Peninsula, so lodging and other accommodations may cost slightly less.
Fall (September through November)
Fall daily highs range from 82.3°F (27.9°C) and 60.1°F (15.6°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 7 to 8 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 Izu Peninsula to be enjoyable for warm weather travelers. The average high during this season is between 57.8°F (14.3°C) and 50°F (10°C). On average, it rains or snows a fair amount: 5 to 7 times per month. These times of year are the second busiest with tourists.