Karuizawa weather in May (Nagano, Japan)

Looking to travel to Karuizawa in May? Here's what the weather might have in store during this month.

In May, Karuizawa typically experiences pleasant temperatures and high rainfall. Throughout the day, temperatures typically settle at around 20°C. But by evening, they drop to around 10°C.

Karuizawa in May usually receives high rainfall, averaging around 154 mm for the month. When we look at the climate data from the last 30 years, we can expect around 16 days of rain.

With around 209 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit. May generally stands out with the best circumstances. While January, February, March and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Karuizawa climate page with graphs.

 

Karuizawa, monthly averages in May

Min TemperatureMin Temperature 10°C  
Max TemperatureMax Temperature 20°C  
Chance of RainChance of Rain 53%  
PrecipitationPrecipitation 154 mm  
Rainy daysRainy days 16 days  
HumidityHumidity 65% *  
SunshineSunshine 209 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Nagano, Japan (52 KM, 32 Miles).

Where to go in Japan in May

Find out more about the weather in Japan in May and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Karuizawa in May?

For visitors traveling to Karuizawa, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in May.

Swimming
7/10
Camping
3/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Karuizawa.

Our site offers climate and forecast data for every country in the world. Are you going to Japan? On this website you can find historical weather averages for many cities in Japan. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.