Iiyama
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Iiyama Weather in March

Iiyama in March sees low temperatures, with highs around 8°C (46°F) and overnight lows of -2°C (28°F). Snow/rainfall is fairly high at around 154 mm (6.1 in) on average, so pack waterproofs just in case.

Rainfall in Iiyama in March

Records from the past 30 years suggest around 22 days of snow/rain, with 154 mm (6.1 in) average for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Iiyama in March

Expect highs of 8°C (46°F) in Iiyama in March, with nights dropping to around -2°C (28°F). Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights drop below freezing to -2°C (28°F). An extra blanket is worth packing if you're unsure about the heating where you're staying.

Sunshine in Iiyama in March

You can expect a moderate amount of sunlight, with approximately 124 hours. This means a pleasant mix of sun and overcast.

If you're looking for dry conditions and comfortable temperatures, March may not be the ideal month to visit Iiyama. Our weather planner can help you explore destinations with more pleasant weather conditions.

Iiyama Temperature in March

Min Temperature
-2°C (28°F)
Max Temperature
8°C (46°F)
Chance of Rain
73%
Precipitation
154 mm (6.1 in)
Rainy days
22 days
Humidity
72% *
Sunshine
124 hours *
Percentage Sunshine
*
* Data from: Joetsu, Japan (30 KM, 18 Miles).

Iiyama Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Iiyama - and find the best time to visit.

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Iiyama typically rise from around 7°C (45°F) at the start of March to approximately 12°C (54°F) by the end. Nights are cold, with lows typically ranging from -1°C (30°F) to 3°C (37°F).

Average temperatures in March

Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in March

Historical weather records for Iiyama in March

Browse day-by-day weather records for Iiyama spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Iiyama historical weather extremes in March

Based on 20 years of weather observations (2006-2026), these are the most extreme conditions recorded in Iiyama.

  • Iiyama recorded its highest March temperature of 24°C (75°F) on March 18, 2009.
  • The lowest daytime temperature in March was 0°C (32°F), recorded on March 10, 2026.
  • Nighttime temperatures dropped to -6°C (21°F) on March 9, 2026, marking the coldest March night on record.

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
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Iiyama in March

Dress warmly and in layers for your trip to Iiyama 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. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Iiyama in March

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

  • Swimming
    5/10
  • Cycling
    4/10
  • Walking
    4/10
  • Camping
    1/10
  • Outdoor sports
    4/10

Iiyama 3-Day Forecast

More climate data for Iiyama

Popular in March

Where to go in March - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.