Jōetsu in May
7.4out of 10
Possible, with caveats
Mild: highs around 21°C. Frequent rain: about 11 rainy days.
21°CAvg high
14°CAvg low
11Rainy days (91 mm)
13:59 hDaylight
04:44Sunrise · 18:43 Sunset
Why this score
- Mild: highs around 21°C
- Frequent rain: about 11 rainy days
What to wear and pack
- Layers you can add or remove
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in May is fairly consistent from year to year (2.7 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 5°C | 1°C | 254 mm | 26 | – | – | 3.3 |
| February | 6°C | 1°C | 179 mm | 21 | – | – | 3.4 |
| March | 9°C | 3°C | 143 mm | 18 | – | – | 4.3 |
| April | 15°C | 8°C | 98 mm | 13 | – | – | 6.2 |
| May | 21°C | 14°C | 91 mm | 11 | – | – | 7.4 |
| June | 24°C | 18°C | 118 mm | 12 | – | – | 7.3 |
| July | 28°C | 22°C | 189 mm | 14 | – | – | 6.7 |
| August | 30°C | 24°C | 124 mm | 12 | – | – | 7.0 |
| September | 26°C | 20°C | 162 mm | 14 | – | – | 6.8 |
| October | 20°C | 14°C | 163 mm | 15 | – | – | 6.4 |
| November | 14°C | 9°C | 179 mm | 19 | – | – | 4.9 |
| December | 8°C | 4°C | 249 mm | 24 | – | – | 3.9 |
Frequently asked questions
How hot is Jōetsu in May?
Daytime highs average 21°C and nights about 14°C.
When is the best time to visit Jōetsu?
The best months are May, June, August.