Utsunomiya climate
Utsunomiya is warmest in August, with average highs of 28 °C, and coldest in January, when nights average -2.5 °C. September is the wettest month (181 mm) and December the driest (48 mm). Figures are 1991–2020 climate normals.
Across a full year Utsunomiya averages 1,399 mm of rain, 80 days above 25 °C and 85 days below freezing.
Japan · population 518,757 · 1991–2020 normals
Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month
- Warmest month August 28 °C
- Coldest month January -2.5 °C
- Driest month December 48 mm
- Wettest month September 181 mm
- Least cloud January 40 % cloud
- Hottest on record July 36 °C
- Coldest on record January -16 °C
What to expectUtsunomiya through the year
Utsunomiya has a clear annual cycle: average daily highs run from 6.3 °C in January to 28 °C in August, a swing of 23 °C in mean temperature across the year.
Counted across a normal year, 80 days a year reach 25 °C, 19 of them reach 30 °C, 85 nights drop below freezing. The warmest reading in the 1991–2020 record is 36 °C, in July.
Rain is strongly seasonal. September averages 181 mm against 48 mm in December — 3.7 times as much. Planning around the dry months matters more here than planning around temperature.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 6.3 °C | 52 mm | 40 % |
| February | 7.4 °C | 54 mm | 48 % |
| March | 11.1 °C | 96 mm | 56 % |
| April | 16.6 °C | 111 mm | 61 % |
| May | 21.2 °C | 140 mm | 69 % |
| June | 24.0 °C | 156 mm | 81 % |
| July | 27.3 °C | 179 mm | 79 % |
| August | 28.4 °C | 138 mm | 71 % |
| September | 24.7 °C | 181 mm | 71 % |
| October | 19.3 °C | 170 mm | 63 % |
| November | 14.1 °C | 74 mm | 50 % |
| December | 8.8 °C | 48 mm | 40 % |
Temperature month by month
| Month | Avg high | Avg low | Mean | Record high | Record low | Days above 25 °C | Days above 30 °C | Days below 0 °C |
|---|---|---|---|---|---|---|---|---|
| January | 6.3 °C | -2.5 °C | 1.4 °C | 15.0 °C | -16.2 °C | 0 | 0 | 27 |
| February | 7.4 °C | -1.8 °C | 2.3 °C | 19.4 °C | -10.2 °C | 0 | 0 | 22 |
| March | 11.1 °C | 1.0 °C | 5.7 °C | 22.6 °C | -6.4 °C | 0 | 0 | 13 |
| April | 16.6 °C | 6.2 °C | 11.1 °C | 27.4 °C | -4.2 °C | 0 | 0 | 2 |
| May | 21.2 °C | 11.4 °C | 16.1 °C | 32.0 °C | 1.8 °C | 4 | 0 | 0 |
| June | 24.0 °C | 16.1 °C | 19.8 °C | 32.6 °C | 7.7 °C | 11 | 1 | 0 |
| July | 27.3 °C | 20.2 °C | 23.4 °C | 36.1 °C | 11.4 °C | 23 | 7 | 0 |
| August | 28.4 °C | 21.3 °C | 24.5 °C | 36.0 °C | 14.2 °C | 27 | 10 | 0 |
| September | 24.7 °C | 17.7 °C | 20.9 °C | 32.9 °C | 7.2 °C | 14 | 1 | 0 |
| October | 19.3 °C | 11.5 °C | 15.1 °C | 31.1 °C | 0.9 °C | 1 | 0 | 0 |
| November | 14.1 °C | 5.0 °C | 9.2 °C | 22.6 °C | -3.5 °C | 0 | 0 | 2 |
| December | 8.8 °C | -0.3 °C | 3.8 °C | 21.1 °C | -9.3 °C | 0 | 0 | 19 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 52 mm | 6 | 9.9 h/day | 40 % | 68 % | 14 km/h |
| February | 54 mm | 7 | 11 h/day | 48 % | 66 % | 15 km/h |
| March | 96 mm | 12 | 12 h/day | 56 % | 69 % | 16 km/h |
| April | 111 mm | 12 | 13 h/day | 61 % | 73 % | 17 km/h |
| May | 140 mm | 13 | 14 h/day | 69 % | 76 % | 15 km/h |
| June | 156 mm | 16 | 15 h/day | 81 % | 82 % | 13 km/h |
| July | 179 mm | 17 | 14 h/day | 79 % | 86 % | 12 km/h |
| August | 138 mm | 14 | 14 h/day | 71 % | 84 % | 12 km/h |
| September | 181 mm | 14 | 12 h/day | 71 % | 83 % | 13 km/h |
| October | 170 mm | 12 | 11 h/day | 63 % | 81 % | 12 km/h |
| November | 74 mm | 8 | 10 h/day | 50 % | 77 % | 12 km/h |
| December | 48 mm | 6 | 9.7 h/day | 40 % | 72 % | 13 km/h |
How Utsunomiya compares
The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.
| Destination | Summer high | Winter low | Rain per year | Days above 25 °C |
|---|---|---|---|---|
| Utsunomiya | 28 °C | -2.5 °C | 1,399 mm | 80 |
| Tochigi · Japan | 29 °C | -1.9 °C | 1,777 mm | 93 |
| Oyama · Japan | 30 °C | -1.8 °C | 1,576 mm | 96 |
| Ōta · Japan | 30 °C | -1.6 °C | 1,478 mm | 93 |
Planning a trip? See the best time to visit Utsunomiya.
QuestionsCommon questions about Utsunomiya’s climate
When is the best time to visit Utsunomiya?
That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, September sit closest to 20 °C on average, August is the warmest month and December the driest. The month-by-month table above has the full picture.
How hot does Utsunomiya get?
In August, the warmest month, daily highs average 28 °C. About 19 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.
How cold does it get in winter?
Nights average -2.5 °C in January, the coldest month. A normal year has 85 nights below freezing.
Which month is wettest in Utsunomiya?
September, averaging 181 mm over 14 days with rain. The driest month is December with 48 mm. The year as a whole averages 1,399 mm.
Are these figures a forecast?
No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Utsunomiya rather than what any particular week will bring. Individual years can differ substantially from the normal.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.