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Itoigawa (Niigata): temperature and climate normals
Latest17.7 °COct 9, 2026 20:10 JST
24 h max / min23.2 °C / 16.0 °C
Annual mean (normal)14.4 °Crank 365 of 903
Annual precipitation (normal)2,901.5mmrank 36
Altitude8 m
Last 24 hours
Monthly normals: temperature
Monthly precipitation (normal)
Monthly sunshine (normal)
Normals table (1991–2020)
| Month | Mean | Max | Min | ≥30°C | Min<0°C | Precip. | Sun |
|---|---|---|---|---|---|---|---|
| Jan | 3.6 °C | 7.0 °C | 0.9 °C | 0.0days | 9.5days | 354.8mm | 52.9h |
| Feb | 3.8 °C | 7.4 °C | 0.7 °C | 0.0days | 11.6days | 225.5mm | 85.2h |
| Mar | 6.7 °C | 10.9 °C | 2.9 °C | 0.0days | 3.7days | 204.5mm | 135.4h |
| Apr | 11.8 °C | 16.3 °C | 7.6 °C | 0.2days | 0.0days | 135.1mm | 178.8h |
| May | 16.8 °C | 21.2 °C | 12.9 °C | 0.2days | 0.0days | 120.5mm | 205.3h |
| Jun | 20.7 °C | 24.3 °C | 17.7 °C | 1.1days | 0.0days | 168.0mm | 160.4h |
| Jul | 25.0 °C | 28.5 °C | 22.3 °C | 11.1days | 0.0days | 237.8mm | 159.2h |
| Aug | 26.6 °C | 30.3 °C | 23.6 °C | 18.2days | 0.0days | 223.3mm | 195.2h |
| Sep | 22.8 °C | 26.6 °C | 19.7 °C | 4.5days | 0.0days | 251.4mm | 138.9h |
| Oct | 17.3 °C | 21.3 °C | 14.0 °C | 0.2days | 0.0days | 232.4mm | 133.9h |
| Nov | 11.6 °C | 15.7 °C | 8.2 °C | 0.0days | 0.0days | 341.0mm | 99.7h |
| Dec | 6.5 °C | 10.2 °C | 3.4 °C | 0.0days | 1.8days | 407.4mm | 66.6h |
| Year | 14.4 °C | 18.3 °C | 11.2 °C | 35.6days | 26.7days | 2,901.5mm | 1,611.5h |
For reference: latest 17.7 °C; the Oct mean normal is 17.3 °C (one observation vs a monthly mean).
Other stations in Niigata
- Awashima Island
- Hajikizaki
- Murakami
- Aikawa
- Ryotsu
- Nakajo
- Shimoseki
- Niigata
- Matsuhama
- Hamochi
- Niitsu
- Maki
- Teradomari
- Sanjo
- Tsugawa
- Nagaoka
- Kashiwazaki
- Sumon
- Ogata
- Koide
Normals: JMA 2020 normals (1991–2020 averages). Latest values are observations fetched once a day, not real time.