Mount Haku
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Mount Haku Weather in May

May in Mount Haku brings pleasant temperatures, with highs of 20°C (68°F) and nights dropping to 9°C (48°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.

Rainfall in Mount Haku in May

Mount Haku is in the rainy season in May, with rain on around 17 days and an average of 210 mm (8.3 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in Mount Haku in May

May in Mount Haku brings pleasant temperatures, with highs of 20°C (68°F) and nights around 9°C (48°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Mount Haku in May

The days are predominantly sunny, with an estimated total of around 192 hours of sunshine. Rain is often only seen in the afternoon or evening, leaving clear skies for most of the day. This results in rainy months that still feel bright and are suitable for travel.

If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.

Mount Haku Temperature in May

Min Temperature
9°C (48°F)
Max Temperature
20°C (68°F)
Chance of Rain
57%
Precipitation
210 mm (8.3 in)
Rainy days
17 days
Humidity
68% *
Sunshine
192 hours *
Percentage Sunshine
*
* Data from: Fukui, Japan (49 KM, 31 Miles).

Mount Haku Weather by Month

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

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Mount Haku typically stay consistent throughout May, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 15°C (59°F).

Average temperatures in May

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 May

Historical weather records for Mount Haku in May

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

Mount Haku historical weather extremes in May

Our historical data for Mount Haku spans 1976 to 2026, revealing these weather extremes.

  • On May 30, 2017, temperatures climbed to 31°C (88°F), marking the warmest May day on record.
  • Mount Haku experienced its chilliest May day on May 3, 1991, reaching only 10°C (50°F).
  • The coldest night in May in Mount Haku was on May 5, 1991, with a minimum of 2°C (36°F).
  • The wettest May day on record brought 125 mm (4.9 in) of precipitation to Mount Haku (May 28, 2024).

Best Places in Japan in May

Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in May →

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 Mount Haku in May

Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Mount Haku in May

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

  • Swimming
    6/10
  • Camping
    3/10

Mount Haku 3-Day Forecast

More climate data for Mount Haku

Popular in May

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

Bucket list

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