The best times to visit Nanjo for ideal weather are

November 5th to May 6th

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



Other Nanjo Travel Info

Weather in Nanjo


Average temperatures in Nanjo vary somewhat. Considering humidity, temperatures feel nice most of the year, excluding some hot weeks in the summer, with a chance of rain throughout most of the year. The area is less temperate than some — in the 37th 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 Nanjo, the hottest months are July, August, and then September. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 90.1°F (32.3°C) with temperatures rarely dropping below 80.9°F (27.2°C) at night.

Nanjo Temperatures (Fahrenheit)


Nanjo 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.

Nanjo Perceived Temperature (F)


Nanjo Perceived Temperature (C)



Average Nanjo 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 66.8 62.4 57.6
Feb 68.9 64.2 59.3
Mar 71.4 66.5 61.4
Apr 74.8 70 65
May 80.1 75.2 70.8
Jun 85.9 81.2 77.6
Jul 89.7 84.5 80.6
Aug 89.1 84 80
Sep 87.8 82.7 78.4
Oct 82.7 77.9 73.8
Nov 76.6 72.1 67.9
Dec 69.8 65.3 60.6

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 19.3 16.9 14.2
Feb 20.5 17.9 15.2
Mar 21.9 19.2 16.3
Apr 23.8 21.1 18.3
May 26.7 24 21.6
Jun 29.9 27.3 25.3
Jul 32.1 29.2 27
Aug 31.7 28.9 26.7
Sep 31 28.2 25.8
Oct 28.2 25.5 23.2
Nov 24.8 22.3 19.9
Dec 21 18.5 15.9



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Nanjo are July, January, and then October. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late September. For example, on the week of September 24th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in mid May with an average of 4 days of significant precipitation the week of May 14th.

When can you find snow in Nanjo? 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 Nanjo.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 24% 0 3.5
Feb 27% 0 5.3
Mar 27% 0 4.9
Apr 31% 0 6.4
May 38% 0 12
Jun 34% 0 10.6
Jul 23% 0 7.5
Aug 39% 0 12.9
Sep 27% 0 7.5
Oct 25% 0 8.4
Nov 27% 0 6.1
Dec 28% 0 5.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 24 0 8.9
Feb 27 0 13.5
Mar 27 0 12.4
Apr 31 0 16.3
May 38 0 30.5
Jun 34 0 26.9
Jul 23 0 19.1
Aug 39 0 32.8
Sep 27 0 19.1
Oct 25 0 21.3
Nov 27 0 15.5
Dec 28 0 13


Humidity and Wind

Nanjo has some very humid months, with other comfortably humid months. The least humid month is December (56.4% relative humidity), and the most humid month is June (78.4%).

Wind in Nanjo is usually moderate. The windiest month is October, followed by June and July. October’s average wind speed of around 11.1 knots (12.8 MPH or 20.6 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 July where average top sustained speeds reach 18 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 10.2 Gentle breeze 15.5 Significant breeze
Feb 9.9 Gentle breeze 15.1 Significant breeze
Mar 10.4 Gentle breeze 15.6 Significant breeze
Apr 10 Gentle breeze 15.3 Significant breeze
May 9.3 Gentle breeze 14.4 Significant breeze
Jun 10.7 Gentle breeze 16.2 Significant breeze
Jul 10.6 Gentle breeze 15.5 Significant breeze
Aug 10.2 Gentle breeze 15.3 Significant breeze
Sep 10 Gentle breeze 15 Significant breeze
Oct 11.1 Significant breeze 16.3 Significant breeze
Nov 10.2 Gentle breeze 15.4 Significant breeze
Dec 10.5 Gentle breeze 15.9 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 57.5%
Feb 63.1%
Mar 62.7%
Apr 66%
May 73.3%
Jun 78.4%
Jul 72.4%
Aug 72.9%
Sep 68.6%
Oct 65.2%
Nov 62.3%
Dec 56.4%


Is it Safe to Travel to Nanjo?

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 Nanjo, Japan is July, followed by April and November. 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 Nanjo in September. 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 slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 56.9 in September means 56.9% of the tourists vs. July.



Overall Nanjo Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 82.7°F (28.2°C) and 68.8°F (20.4°C) with warmer temperatures in the later months. Rain is somewhat common with 8 to 12 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 the most precipitation with 7 to 12 days of precipitation per month. June – August is the second busiest season for tourism in Nanjo, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 88.5°F (31.4°C) and 73.4°F (23°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: approximately 8 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is somewhat cool this time of year in Nanjo to be enjoyable for warm weather travelers. The average high during this season is between 71.4°F (21.9°C) and 66.1°F (18.9°C). On average, it rains or snows a fair amount: 8 to 9 times per month. These times of year are the slowest with tourists.


Best Times to TravelJapan › Nanjo, Japan