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Iriomotejima Island (Okinawa): temperature and climate normals
Latest27.3 °COct 9, 2026 20:10 JST
24 h max / min27.3 °C / 25.5 °C
Annual mean (normal)23.9 °Crank 10 of 903
Annual precipitation (normal)2,240.0mmrank 144
Altitude10 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 | 18.5 °C | 20.9 °C | 16.4 °C | 0.0days | 0.0days | 162.9mm | 71.8h |
| Feb | 19.0 °C | 21.6 °C | 16.7 °C | 0.0days | 0.0days | 146.6mm | 82.9h |
| Mar | 20.2 °C | 23.1 °C | 17.7 °C | 0.0days | 0.0days | 147.3mm | 107.1h |
| Apr | 22.8 °C | 25.5 °C | 20.3 °C | 0.3days | 0.0days | 157.3mm | 124.3h |
| May | 25.5 °C | 28.3 °C | 23.1 °C | 6.9days | 0.0days | 175.6mm | 165.8h |
| Jun | 27.8 °C | 30.5 °C | 25.8 °C | 20.6days | 0.0days | 186.3mm | 203.7h |
| Jul | 28.9 °C | 32.1 °C | 26.5 °C | 28.9days | 0.0days | 128.8mm | 256.2h |
| Aug | 28.5 °C | 31.5 °C | 26.1 °C | 27.3days | 0.0days | 282.0mm | 218.8h |
| Sep | 27.6 °C | 30.3 °C | 25.2 °C | 19.5days | 0.0days | 270.8mm | 184.5h |
| Oct | 25.4 °C | 27.8 °C | 23.4 °C | 4.5days | 0.0days | 213.1mm | 139.1h |
| Nov | 23.1 °C | 25.5 °C | 21.0 °C | 0.4days | 0.0days | 192.3mm | 97.1h |
| Dec | 20.0 °C | 22.4 °C | 17.9 °C | 0.0days | 0.0days | 176.9mm | 70.7h |
| Year | 23.9 °C | 26.6 °C | 21.7 °C | 108.3days | 0.0days | 2,240.0mm | 1,721.9h |
For reference: latest 27.3 °C; the Oct mean normal is 25.4 °C (one observation vs a monthly mean).
Other stations in Okinawa
- Izena
- Oku
- Nago
- Kitahara
- Kumejima Island
- Miyagijima Island
- Tokashiki
- Naha
- Ashimine
- Itokazu
- Kita-Daito
- Minami-Daito
- Kyuto
- Shimojishima Island
- Miyakojima Island
- Kagamihara
- Nakasuji
- Ibaruma
- Tokorono
- Yonagunijima Island
Normals: JMA 2020 normals (1991–2020 averages). Latest values are observations fetched once a day, not real time.