Utsunomiya weather by month

At a glance

Quietest month in Tochigi: February. Busiest: August, with about 1.9 times as many guest nights as February. In Utsunomiya, August is warmest (average high 30.9 °C) and September wettest (217 mm of rain).

  1. January: 6.2%, quieter than average
  2. February: 6.1%, quieter than average
  3. March: 8.4%, busier than average
  4. April: 7.8%, quieter than average
  5. May: 8.7%, busier than average
  6. June: 7.4%, quieter than average
  7. July: 8.6%, busier than average
  8. August: 11.6%, one of the two busiest months
  9. September: 8.5%, busier than average
  10. October: 9.7%, one of the two busiest months
  11. November: 9.5%, busier than average
  12. December: 7.6%, quieter than average

quieter than average busier than average two busiest months · each month's share of Tochigi's 2025 guest nights; an even spread is 8.3% a month

Weather
Coldest: January (average low −2.2 °C). Driest: January, February and December (38 mm). Month by month
Holidays
18 national public holidays in 2026. See the dates
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Plan a trip with your dates
TL;DR

At the Utsunomiya (宇都宮) weather station, which we use for Utsunomiya, the warmest month is August (average high 30.9 °C) and the coldest January (average low −2.2 °C), averaged over 1991–2020. The wettest month is September (217 mm of rain). Tochigi's quietest month for visitors in 2025 was February.

A stone lantern and torii gates at a temple in Utsunomiya, Japan
A stone lantern and torii gates at a temple in Utsunomiya, Japan. Photo by FranckinJapan on Pixabay.

Utsunomiya weather by month

Averages for 1991–2020 at the Utsunomiya (宇都宮) weather station, copied from our Tochigi page, next to each month's share of Tochigi's guest nights (Japan Tourism Agency, 2025). These are long-term averages, not a forecast.

Utsunomiya: average weather by month, 1991 to 2020, and share of 2025 visits
MonthAverage highAverage lowRainRainy daysDaylight on the 15thShare of 2025
January8.6 °C−2.2 °C38 mm3.7 days9 h 55 min6.2%
February9.7 °C−1.3 °C38 mm4.7 days10 h 50 min6.1%
March13.4 °C2.1 °C88 mm8.2 days11 h 55 min8.4%
April18.8 °C7.4 °C122 mm9.8 days13 h 10 min7.8%
May23.3 °C13.0 °C149 mm11.3 days14 h 5 min8.7%
June25.9 °C17.4 °C175 mm13.1 days14 h 40 min7.4%
July29.5 °C21.4 °C215 mm13.7 days14 h 25 min8.6%
August30.9 °C22.5 °C198 mm11.9 days13 h 35 min11.6%
September27.0 °C18.8 °C217 mm12.3 days12 h 25 min8.5%
October21.4 °C12.6 °C174 mm9.7 days11 h 15 min9.7%
November15.9 °C5.7 °C71 mm6.2 days10 h 15 min9.5%
December10.8 °C0.2 °C38 mm4.1 days9 h 40 min7.6%

Golden hour

Evening golden hour is our calculation for the 15th of each month of 2026: the time the sun takes to go from 6° above to 4° below the horizon (there is no official definition).

Utsunomiya: golden hour and sea temperature by month
MonthEvening golden hour (15th)
January0 h 56 min
February0 h 52 min
March0 h 50 min
April0 h 51 min
May0 h 54 min
June0 h 57 min
July0 h 56 min
August0 h 52 min
September0 h 50 min
October0 h 51 min
November0 h 55 min
December0 h 58 min

Public holidays by month

National public holidays from the official list on our holiday page, by month, so you can see them next to the weather and how busy each month was. Regional and local holidays are not included.

Public holidays by month, 2026 and 2027
Month20262027
January1 Jan: New Year's Day, 12 Jan: Coming-of-Age Day1 Jan: New Year's Day, 11 Jan: Coming-of-Age Day
February11 Feb: National Foundation Commemoration Day, 23 Feb: Emperor's Birthday11 Feb: National Foundation Commemoration Day, 23 Feb: Emperor's Birthday
March20 Mar: Vernal Equinox Day21 Mar: Vernal Equinox Day, 22 Mar: Public holiday (Vernal Equinox Day fell on a Sunday)
April29 Apr: Showa Day29 Apr: Showa Day
May3 May: Constitution Memorial Day, 4 May: Greenery Day, 5 May: Children's Day, 6 May: Public holiday (Constitution Memorial Day fell on a Sunday)3 May: Constitution Memorial Day, 4 May: Greenery Day, 5 May: Children's Day
July20 Jul: Marine Day19 Jul: Marine Day
August11 Aug: Mountain Day11 Aug: Mountain Day
September21 Sep: Respect for the Aged Day, 22 Sep: Public holiday (between Respect for the Aged Day and Autumnal Equinox Day), 23 Sep: Autumnal Equinox Day20 Sep: Respect for the Aged Day, 23 Sep: Autumnal Equinox Day
October12 Oct: Sports Day11 Oct: Sports Day
November3 Nov: Culture Day, 23 Nov: Labor Thanksgiving Day3 Nov: Culture Day, 23 Nov: Labor Thanksgiving Day

The quietest and busiest months

In 2025, February was Tochigi's quietest month (6.1% of the year's guest nights): average high 9.7 °C, average low −1.3 °C, 38 mm of rain. August was the busiest (11.6%): average high 30.9 °C, average low 22.5 °C, 198 mm of rain. The figures do not show that the weather makes a month busier or quieter, so we do not say it does.

Similar weather, quieter: ideas for August

August was Tochigi's busiest month in 2025 (11.6% of its guest nights). These places had an average high within 2 °C and rainy days within 3 of Utsunomiya's in August, in a different prefecture, and August took a smaller share of its 2025 guest nights than August did of Tochigi's:

  • Miyazaki: average high 31.6 °C, 12.3 rainy days; August was 10.5% of Miyazaki's year.
  • Fukushima: average high 30.5 °C, 11.0 rainy days; August was 10.9% of Fukushima's year.
  • Naha, Okinawa: average high 31.8 °C, 12.3 rainy days; August was 11.0% of Okinawa's year.
  • Yamagata: average high 30.5 °C, 10.5 rainy days; August was 11.3% of Yamagata's year.
  • Niigata: average high 30.8 °C, 10.0 rainy days; August was 11.5% of Niigata's year.

Weather: 1991–2020 averages at each city's weather station (World Meteorological Organization normals in Europe, Japan Meteorological Agency in Japan); a rainy day has at least 1 mm of rain. “Quieter” compares a month with the rest of that place's own year. Try another month or place. All quieter alternatives to Tochigi in August.

What these figures are

One weather station stands for Utsunomiya; places nearby can differ, especially by height or distance from the sea. For the full picture of Tochigi, including regions and holidays, see our Tochigi page; for other places, the visual guides and golden hour by place.

Where the Utsunomiya (宇都宮) weather station is: 36.548° N, 139.868° E. Outline of Japan from Natural Earth (world-atlas), simplified; small islands may not show.

Key takeaways

  • Warmest month: August (average high 30.9 °C); coldest: January (average low −2.2 °C).
  • Wettest month: September (217 mm); driest: January, February and December (38 mm).
  • In 2025, February was Tochigi's quietest month for visitors and August the busiest.

Sources

Weather normals and daylight copied from our country or prefecture page; tourism shares from the same page. See how we research.

  1. Weather: 出典:気象庁ホームページ(宇都宮 平年値). Japan Meteorological Agency, 1991–2020 normals for the Utsunomiya station: daily maximum and minimum temperature, precipitation, days with at least 1.0 mm of precipitation (降水量の階級日数) and hours of sunshine (日照時間). Accessed 22 September 2026. Licensed under PDL1.0. 気象庁「平年値」を加工して作成 — edited by Traveloffsy (English wording, selection and rounding).
  2. Daylight: our calculation of the time from sunrise to sunset on the 15th of each month of 2026 at the weather station's location, by the method of the NOAA Solar Calculator (NOAA Global Monitoring Laboratory, “Solar Calculation Details”, based on Jean Meeus, Astronomical Algorithms, allowing 0.833° for refraction and the size of the sun). Read it. Checked 22 September 2026. NOAA notes that calculated times can differ from what is observed.
  3. Source: 「宿泊旅行統計調査」(観光庁) (Overnight Travel Statistics Survey, Japan Tourism Agency), 2025 annual figures (final), tables 2 and 8 and reference table 1, published 6 July 2026. Survey page · workbook. Accessed 17 September 2026. Licensed under the Public Data License 1.0 (PDL1.0).

Modified data: the arrangement, the golden-hour and sea columns and the quietest/busiest comparison are ours, from the cited figures.