The best times to visit Numazu for ideal weather are

April 9th to June 24th

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



Other Numazu Travel Info

Weather in Numazu


Average temperatures in Numazu vary drastically. 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 28th 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 Numazu, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early to mid August where highs are regularly around 91.2°F (32.9°C) with temperatures rarely dropping below 75.9°F (24.4°C) at night.

Numazu Temperatures (Fahrenheit)


Numazu Temperatures (Celsius)


“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.

Numazu Perceived Temperature (F)


Numazu Perceived Temperature (C)



Average Numazu 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 52.1 42 31.4
Feb 54.1 44.4 34
Mar 59.8 50.3 39.3
Apr 67.1 57.8 47.3
May 75.4 66.2 56.6
Jun 79.9 72.1 65
Jul 86.5 79.1 72.8
Aug 89.7 81.4 74.4
Sep 84.1 75.1 67.1
Oct 75 65.7 57
Nov 65.3 55.7 46
Dec 56.7 46.6 36.3

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 11.2 5.6 -0.3
Feb 12.3 6.9 1.1
Mar 15.4 10.2 4.1
Apr 19.5 14.3 8.5
May 24.1 19 13.7
Jun 26.6 22.3 18.3
Jul 30.3 26.2 22.7
Aug 32.1 27.4 23.6
Sep 28.9 23.9 19.5
Oct 23.9 18.7 13.9
Nov 18.5 13.2 7.8
Dec 13.7 8.1 2.4



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Numazu are January, December, and then August. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st 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 Numazu? 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 Numazu.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 13% 0 2.8
Feb 24% 0 5.1
Mar 28% 0 6.2
Apr 32% 0 6.7
May 26% 0 6.7
Jun 31% 0 7.6
Jul 32% 0 9.8
Aug 18% 0 5.1
Sep 28% 0 11.1
Oct 24% 0 7
Nov 22% 0 4.6
Dec 18% 0 3.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 13 0 7.1
Feb 24 0 13
Mar 28 0 15.7
Apr 32 0 17
May 26 0 17
Jun 31 0 19.3
Jul 32 0 24.9
Aug 18 0 13
Sep 28 0 28.2
Oct 24 0 17.8
Nov 22 0 11.7
Dec 18 0 9.1


Humidity and Wind

Numazu has some high humidity months, with other comfortably humid months. The least humid month is March (51% relative humidity), and the most humid month is July (67.8%).

Wind in Numazu is usually calm. The windiest month is April, followed by March and May. April’s average wind speed of around 5.1 knots (5.9 MPH or 9.4 KPH) is considered “a light 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 12.1 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

Avg. Relative Humidity


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

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 3.8 Barely noticeable 8.7 Gentle breeze
Feb 4.1 Light breeze 9.3 Gentle breeze
Mar 5 Light breeze 10.9 Gentle breeze
Apr 5.1 Light breeze 10.8 Gentle breeze
May 4.8 Light breeze 10.2 Gentle breeze
Jun 4.4 Light breeze 9.5 Gentle breeze
Jul 4.8 Light breeze 9.5 Gentle breeze
Aug 4.7 Light breeze 9.2 Gentle breeze
Sep 4.2 Light breeze 9.1 Gentle breeze
Oct 3.8 Barely noticeable 8.7 Gentle breeze
Nov 3.7 Barely noticeable 8.5 Gentle breeze
Dec 4.3 Light breeze 9.3 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 51.4%
Feb 51.8%
Mar 51%
Apr 54.7%
May 57.6%
Jun 65.4%
Jul 67.8%
Aug 65.2%
Sep 64%
Oct 62.1%
Nov 61.3%
Dec 55.3%


Is it Safe to Travel to Numazu?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for Japan; 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 Nov 14, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Numazu, 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 Numazu 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

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 extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 73.3 in December means 73.3% of the tourists vs. January.



Overall Numazu Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 77.5°F (25.3°C) and 55.8°F (13.2°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 quite warm. These months see moderate precipitation with 6 to 10 days of precipitation per month. June – August is fairly slow season for tourism in Numazu, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 87.2°F (30.7°C) and 61.2°F (16.2°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 Numazu to be enjoyable for warm weather travelers. The average high during this season is between 59°F (15°C) and 51.1°F (10.6°C). On average, it rains or snows a fair amount: 4 to 7 times per month. These times of year are the second busiest with tourists.


Best Times to TravelJapan › Numazu, Japan