Climate averages 1991–2020
Sanjō weather
in June.
A warm, wet month: the 4th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Sanjō: daytime highs average 24.7°C and nights cool to about 15.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 143 mm of rain on roughly 14 days, which makes June a wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 43 min on an average June day.
The nearest other city in this atlas is Tsubame (6 km away). In June its highs average 23.9°C, 0.8°C cooler than Sanjō, with 117 mm of rain.
Among the 303 cities listed in Japan, Sanjō ranks joint 156th of 303 for the warmest June highs and 43rd of 303 for the driest June (rainfall, lowest first). The mean June high of those 303 cities is 24.4°C; Sanjō is 0.3°C warmer than that mean.
From June to July, average highs rise by 3.1°C to 27.8°C, and monthly rainfall rises from 143 mm to 244 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sanjō climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.9°C-2.0°C | -2.0°C | 206 | 25.7 | 9.910 h |
| February | 4.6°C-2.4°C | -2.4°C | 151 | 21.7 | 10.811 h |
| March | 9.0°C0.0°C | 0.0°C | 150 | 20.8 | 11.912 h |
| April | 15.5°C4.9°C | 4.9°C | 116 | 15.3 | 13.113 h |
| May | 21.1°C10.6°C | 10.6°C | 116 | 13.1 | 14.214 h |
| June, selected | 24.7°C15.8°C | 15.8°C | 143 | 14.1 | 14.715 h |
| July | 27.8°C20.4°C | 20.4°C | 244 | 17.7 | 14.514 h |
| August | 29.4°C21.8°C | 21.8°C | 169 | 15.6 | 13.614 h |
| September | 25.4°C17.9°C | 17.9°C | 156 | 15.1 | 12.512 h |
| October | 19.4°C11.5°C | 11.5°C | 157 | 15.8 | 11.311 h |
| November | 13.3°C5.6°C | 5.6°C | 153 | 18.5 | 10.210 h |
| December | 7.1°C0.6°C | 0.6°C | 202 | 24.0 | 9.610 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Tsubame in JuneJapan · 6 kmHigh 23.9°C · Low 16.2°C · 117 mm rain
- Nagaoka in JuneJapan · 21 kmHigh 25.1°C · Low 15.7°C · 115 mm rain
- Niigata in JuneJapan · 35 kmHigh 23.1°C · Low 16.5°C · 123 mm rain
- Kashiwazaki in JuneJapan · 45 kmHigh 24.8°C · Low 16.1°C · 126 mm rain
- Shibata in JuneJapan · 50 kmHigh 23.9°C · Low 15.6°C · 155 mm rain
- Jōetsu in JuneJapan · 82 kmHigh 24.4°C · Low 16.4°C · 115 mm rain
- Aizu-Wakamatsu in JuneJapan · 89 kmHigh 23.4°C · Low 14.9°C · 117 mm rain
- Yonezawa in JuneJapan · 108 kmHigh 23.4°C · Low 15.0°C · 155 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sanjō) is explained once on the Sanjō year overview and on the Sources, method and limits page.