Motomachi, Japan Climate
The warmest month is August, with an average high of 23°C; the coldest is February, with an average low of -16°C. A normal year brings 963 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 29
- Normal high
- 16°C
- Normal low
- 7°C
- Reanalysis high
- 22°Cin 2019
- Reanalysis low
- -1°Cin 1992
- Chance of a wet day
- 44%
- Daylight
- 11 h 51 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | -6°C | -15°C | 2°C (1995) | -28°C (2000) | 47 mm | 10.8 |
| February | -5°C | -16°C | 3°C (2020) | -28°C (2010) | 36 mm | 8.6 |
| March | -1°C | -10°C | 13°C (2014) | -22°C (1995) | 47 mm | 9.4 |
| April | 7°C | -2°C | 23°C (1998) | -15°C (1994) | 58 mm | 10.2 |
| May | 14°C | 3°C | 31°C (2019) | -4°C (1991) | 82 mm | 11.8 |
| June | 19°C | 9°C | 32°C (2014) | 0°C (1996) | 88 mm | 11.6 |
| July | 23°C | 13°C | 33°C (2019) | 6°C (2018) | 111 mm | 13.4 |
| August | 23°C | 14°C | 34°C (1994) | 6°C (1993) | 136 mm | 14.3 |
| September | 19°C | 10°C | 33°C (2020) | -1°C (1992) | 133 mm | 13.7 |
| October | 12°C | 3°C | 23°C (2019) | -5°C (2010) | 94 mm | 12.1 |
| November | 4°C | -4°C | 16°C (2003) | -19°C (1998) | 68 mm | 12.5 |
| December | -3°C | -12°C | 8°C (2008) | -24°C (2012) | 63 mm | 12.2 |
| Year | 9°C | -1°C | 963 mm | 141 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
963 mm in a normal year, most in August.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Motomachi.
The muggiest month is August, when 22 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | -12°C | 95% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | -11°C | 95% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | -7°C | 90% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | -1°C | 81% | 100% | 0% | 0% | 0% | 0% | 0% |
| May | 5°C | 81% | 100% | 0% | 0% | 0% | 0% | 0% |
| June | 10°C | 83% | 78% | 18% | 4% | 0% | 0% | 0% |
| July | 15°C | 84% | 26% | 34% | 26% | 13% | 0% | 0% |
| August | 16°C | 84% | 19% | 31% | 28% | 20% | 2% | 0% |
| September | 12°C | 85% | 66% | 21% | 9% | 4% | 0% | 0% |
| October | 5°C | 85% | 99% | 1% | 0% | 0% | 0% | 0% |
| November | -2°C | 87% | 100% | 0% | 0% | 0% | 0% | 0% |
| December | -9°C | 92% | 100% | 0% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is January, with the sky 55 percent covered on average; the cloudiest is July, at 78 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is March, averaging 15.5 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 21, with 15 h 28 min of daylight; the shortest is Dec 18, with 8 h 55 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Motomachi in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-28. Sun and moon: computed with the NOAA solar equations and Meeus.