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A wooden boardwalk leading to the Sessho-seki historic site in Nasu, marked by a sign, with rocky hills in the background

Photo: Sassyouseki,nasu-town,japan.JPG by katorisi (CC BY 2.5, cropped), via Wikimedia Commons.

Nasu in April: weather, what to wear and what's on

The JMA's figures for Nasu come from its Nasu Kogen station in Nasu Town (749 m above sea level). In April, Nasu averages a high of 13.0°C (55°F) and a low of 2.6°C (37°F), with 139.6 mm of rain or snow on about 11.3 days (JMA, 1991–2020).

Nasu weather in April

Averages for 1991–2020 at the JMA's Nasu Kogen station (749 m above sea level).

High
13.0°C (55°F)
Low
2.6°C (37°F)
Precipitation
139.6 mm
Wet days
11.3 days
Sunshine
170 hours
  • Highs rise 6.2°C from March and climb another 5.2°C into May.
  • That is 0.9°C below Nasu's yearly average high of 13.9°C.
  • Of our 34 places with temperature records, Nasu is the 4th coldest in April: 0.7°C cooler than Aomori and 1.0°C warmer than Hakodate.
  • April is Nasu's 6th driest month (139.6 mm).
  • Of our 35 places, Nasu has the 13th highest precipitation in April: 1.4 mm less than Hiroshima and 5.1 mm more than Toyama.
  • Rain or snow of 1 mm or more falls on 11.3 days, and 10 mm or more on 4.0 days.
  • Rain or snow of 30 mm or more in one day falls on 1.4 days, and 50 mm or more on 0.6 days.
  • The temperature drops below 0°C on 7.7 nights.
  • 7 cm of snow falls in an average April; snow 5 cm or deeper lies on the ground on 0.5 days.
  • The sun is out for 40% or more of the possible hours on 16.1 days, and 5.7 days have under 0.1 hours of sunshine.
Average temperature
7.8°C (46°F)
Deepest snow (average of each year's deepest)
5 cm

Early, mid and late April

Nasu in April by ten-day period: averages for 1991–2020 (JMA)
DaysHighLowPrecipitation
1–10 April11.0°C0.9°C37.9 mm
11–20 April13.0°C2.7°C47.5 mm
21–30 April15.1°C4.4°C54.2 mm

By the last ten days of April the average high in Nasu is 4.1°C higher than in the first ten.

By ten-day totals, 21–30 April is the wettest (54.2 mm) and 1–10 April the driest (37.9 mm).

What to wear in Nasu in April

Chilly: highs around 13.0°C

  • A warm jacket or light coat over a sweater.
  • Gloves and a hat for mornings and nights: the temperature drops below 0°C on 7.7 nights.
  • Layers you can take off: afternoons are 10.4°C warmer than early mornings on average.
  • An umbrella: rain or snow falls on 11.3 days.

Pack

  • Umbrella
  • Gloves and a warm hat

Holidays and crowds in April

National holidays in April 2027:

  • Thu 29 April — Showa Day

In April 2025, hotels and inns across Tochigi Prefecture were 54.7% full on average (8th busiest of 12 months). Foreign guests spent 51,260 nights there that month (Japan Tourism Agency). That compares with 54.9% in March and 55.3% in May.

Frequently asked questions

What is the weather like in Nasu in April?

The average high is 13.0°C (55°F) and the average low 2.6°C (37°F). 139.6 mm of rain or snow falls on about 11.3 days (JMA, 1991–2020).

What should I wear in Nasu in April?

A warm jacket or light coat over a sweater. Gloves and a hat for mornings and nights: the temperature drops below 0°C on 7.7 nights. Layers you can take off: afternoons are 10.4°C warmer than early mornings on average. An umbrella: rain or snow falls on 11.3 days.

Is Nasu busy in April?

In April 2025, hotels and inns across Tochigi Prefecture were 54.7% full on average (8th busiest of 12 months). Foreign guests spent 51,260 nights there that month (Japan Tourism Agency).

What are the record temperatures for April in Nasu?

The highest temperature the JMA has recorded in Nasu in April is 26.8°C (80°F), on 22 April 2018. The lowest is −6.0°C (21°F), on 1 April 1987.

April records in Nasu

The extremes the JMA has measured in April at its Nasu Kogen station.

Hottest April day
26.8°C (80°F) on 22 April 2018 (records since 1978)
Coldest April night
−6.0°C (21°F) on 1 April 1987 (records since 1978)
Wettest April day
125.0 mm on 15 April 1982 (records since 1976)
Deepest April snow
43 cm on 17 April 2010 (records since 1990)
Most snow in one April day
38 cm on 17 April 2010 (records since 1990)

Nasu before and after April

Nasu: March, April and May (JMA, 1991–2020)
MonthHighLowPrecipitationWet days
March6.8°C (−6.2°C)−2.4°C (−5.0°C)101.6 mm (−38.0 mm)10.4 days (−0.9 days)
April13.0°C2.6°C139.6 mm11.3 days
May18.2°C (+5.2°C)7.7°C (+5.1°C)180.8 mm (+41.2 mm)12.1 days (+0.8 days)

Other places in April

April: Nasu against five other places (JMA, 1991–2020)
PlaceHighAgainst NasuWet daysAgainst Nasu
NikkoImaichi16.1°C+3.1°C10.9 days−0.4 days
Niigata16.1°C+3.1°C11.5 days+0.2 days
Kusatsu Onsen11.5°C−1.5°C11.0 days−0.3 days
Sendai15.5°C+2.5°C7.7 days−3.6 days
Karuizawa14.3°C+1.3°C8.9 days−2.4 days

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