Karuizawa Weather in March
During March, Karuizawa experiences low daytime temperatures of 9°C (48°F) and cooler nights around -2°C (28°F). Expect quite a bit of snow/rainfall. Around 111 mm (4.4 in) is typical.
Rainfall in Karuizawa in March
Looking at the last 30 years, the data shows about 18 days with snow/rain, averaging 111 mm (4.4 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Karuizawa in March
March in Karuizawa brings typical temperatures with highs around 9°C (48°F) and lows of -2°C (28°F). It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights are well below freezing at -2°C (28°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation.
Sunshine in Karuizawa in March
The area enjoys a moderate level of sunlight, with around 170 hours. It's a good balance between sunny and cloudy days.March in Karuizawa has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Karuizawa's climate page.
Karuizawa Temperature in March
Min Temperature
-2°C (28°F)
Max Temperature
9°C (48°F)
Chance of Rain
60%
Precipitation
111 mm (4.4 in)
Rainy days
18 days
Humidity
68% *
Sunshine
170 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Karuizawa typically rise from around 7°C (45°F) at the start of March to approximately 11°C (52°F) by the end. Nights are very cold, with lows typically ranging from -5°C (23°F) to 0°C (32°F).
Average temperatures in March
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in March
Historical weather for Karuizawa in March
Browse day-by-day weather records for Karuizawa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Karuizawa historical weather extremes in March
Our historical data for Karuizawa spans 1976 to 2026, revealing these weather extremes.
- Karuizawa recorded its highest March temperature of 23°C (73°F) on March 29, 1998.
- On March 10, 2014, Karuizawa saw its coldest March day with temperatures maxing out at -3°C (27°F).
- Karuizawa registered its coldest March night on March 1, 2000, with temperatures dropping to -14°C (7°F).
- The wettest day in March Karuizawa was on March 29, 2020 with 50 mm (2 in) of precipitation.
Best Places in Japan in March
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in March →
perfect weather
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What to Wear in Karuizawa in March
Dress warmly and in layers for your trip to Karuizawa in March. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Karuizawa in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Karuizawa's climate page.
Temperature Rainfall Sunshine Humidity
See the full Karuizawa climate overview or explore weather in Japan.
