Weather in Utsunomiya in October
Japan · 20-year averages, October
A good month. October works. It is not the peak, but nothing about it fights you. Highs average 21 °C, lows 11 °C, and rain falls on 13 days — nothing in the month is working against you.
October ranks 2 of 12 in Utsunomiya. Only May scores clearly higher, and the difference is small enough to be settled by price rather than weather.
This is wet-season rain: 13 wet days and 5 genuinely heavy ones, which in this climate means concentrated downpours rather than all-day grey. The pattern is usually a clear morning and a loud afternoon, so front-load the day and stop fighting the 3pm hour. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average October reaches 30 °C. Across the twenty years measured, the hottest October day reached 32 °C and the coldest night fell to 2 °C, and the wettest single day dropped 134 mm — roughly 70% of the month's rain in one day.
October is moderately variable: 40 mm in the driest year against 497 mm in the wettest, around an average of 192 mm. Roughly two Octobers in three land near that average, and the third does something else entirely.
Wind is light at 4.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 83%, high enough to notice on the warm days without dominating them.
How October sits in the year
The month is on the way down: 5.8 °C cooler than September, with November dropping another 5.7 °C. The first week and the last are not the same trip. Rain is the thing that moves: November brings 6 days less of it, so pushing the dates later buys drier weather.
Daylight in October
11.3 hours of daylight, losing 1.1 hours across the month. That is between Utsunomiya's extremes of 14.6 and 9.7 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 33.5 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, September is the trade worth considering — 11 points weaker on weather, and materially quieter.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
October in Utsunomiya versus nearby
If Utsunomiya is one option among several, the nearby comparison is worth making. Tokyo is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Niigata is close enough to be a coin toss — within a degree on temperature, 3 days more rain.
So: October is effectively as good as it gets here — 3 points behind May, which is inside the margin where the weather stops being the deciding factor and price starts being it.
Every month in Utsunomiya
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 6.5 | -2.6 | 6 | 53 | 77 | 9.9 | 42 |
| February | 7.9 | -2.3 | 6 | 45 | 77 | 10.8 | 47 |
| March | 12 | 0.1 | 10 | 87 | 75 | 11.9 | 54 |
| April | 17.9 | 5.1 | 11 | 117 | 76 | 13.1 | 70 |
| May | 23.1 | 11 | 12 | 134 | 77 | 14.1 | 75 |
| June | 26.1 | 16 | 16 | 157 | 81 | 14.6 | 67 |
| July | 29.8 | 20.4 | 19 | 192 | 83 | 14.4 | 50 |
| August | 30.9 | 21.5 | 17 | 167 | 82 | 13.6 | 46 |
| September | 26.8 | 17.5 | 15 | 196 | 84 | 12.5 | 64 |
| October | 21 | 11 | 13 | 192 | 83 | 11.3 | 72 |
| November | 15.3 | 4.7 | 7 | 79 | 82 | 10.3 | 70 |
| December | 9.4 | -0.4 | 6 | 57 | 80 | 9.7 | 48 |
See all twelve months in Utsunomiya, or where else to go in October.
Planning the rest of the trip
- Flight time to Utsunomiya how long you are actually in the air
- Utsunomiya time zone and the difference from home
- Days until your trip count down to the departure date