Temperature records for Kochi
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Kochi, ―
Stations in Kochi
All-time records in Kochi
Records among the stations on this page (statistics as of November 1, 2026).
| Record | Station | Value | Date |
|---|---|---|---|
| Highest temperature | Ekawasaki | 41.0°C | Aug 12, 2013 |
| Lowest temperature | Yusuhara | -12.0°C | Jan 1, 1981 |
| Heaviest daily rainfall | Hongawa | 713.0 mm | Sep 6, 2005 |
Range of records by station
Each bar is one station: the left dot is its record low and the right dot its record high. The statistical period differs by station, depending on when observations began or the station moved. The dates are on each station's page.
The climate of Kochi
Rain in Kochi Prefecture comes on a different order of magnitude. The prefecture's daily rainfall record is 713 mm at Hongawa, observed on September 6, 2005. On the same day, 437 mm also fell at Ekawasaki. On September 24, 1998, the city of Kochi recorded 628.5 mm and Gomen 584 mm. At Hongawa, at an elevation of 605 m, the share of days with less than 1 mm of precipitation in June is only 50%.
Its heat records are also among the top in Japan. Ekawasaki, along the Shimanto River, observed 41°C on August 12, 2013, ranking 9th from the top among all the stations covered on this site. It also reached 40.8°C on August 2, 2026. Sukumo recorded 39.5°C on August 15, 2020, and the city of Kochi, the prefectural capital, 38.4°C on August 22, 1965.
On the other hand, normal values span a wide range within the prefecture: over the 30 years of 1996–2025, the average January minimum ranges from 5.4°C at Shimizu, near the southwestern tip of the prefecture, to -2°C at Hongawa. Hongawa fell to -10.8°C on January 15, 1985. At Cape Muroto, jutting out into the Pacific, the average August maximum is only 29.3°C, and the record high is 35°C, set on July 30, 1942.
Record values in this description are based on data collected as of September 2026, and the normal statistics on the 30 years 1996–2025.
Monthly normals for Kochi (Kochi)
The normals for Kochi represent the stations in Kochi. Normals for the other stations are on each station's page.
Temperature (monthly normals)
The lines show monthly normals: the upper line is the monthly mean of the daily high and the lower line the monthly mean of the daily low, and the middle line is the monthly mean temperature. Touch the point for a month to read its values. Normals are the 1991–2020 average.
Precipitation (monthly normals, mm)
Table of monthly normals
| Month | Mean | High | Low | Precipitation |
|---|---|---|---|---|
| Jan | 6.7 | 12.2 | 2.1 | 59.1 |
| Feb | 7.8 | 13.2 | 3.1 | 107.8 |
| Mar | 11.2 | 16.3 | 6.4 | 174.8 |
| Apr | 15.8 | 20.9 | 10.9 | 225.3 |
| May | 20.0 | 24.8 | 15.5 | 280.4 |
| Jun | 23.1 | 27.1 | 19.7 | 359.5 |
| Jul | 27.0 | 30.8 | 23.9 | 357.3 |
| Aug | 27.9 | 32.1 | 24.5 | 284.1 |
| Sep | 25.0 | 29.5 | 21.4 | 398.1 |
| Oct | 19.9 | 25.0 | 15.6 | 207.5 |
| Nov | 14.2 | 19.6 | 9.7 | 129.6 |
| Dec | 8.8 | 14.4 | 4.2 | 83.1 |
Temperatures are in degrees Celsius (°C) and precipitation in mm. Blank cells have no normal.
Annual mean temperature (1996–2025)
The yearly average of the daily mean temperature (the line is broken in years with many missing values). Observing conditions at Kochi changed on December 4, 2007; June 25, 2008; March 2, 2023 (for example, a relocation or new instruments), so the statistics may not be continuous across those dates.
The normals listed here are averages over the 30 years from 1991 to 2020. They are fixed values that stay the same until the next revision of the normals, and they show how warm or cold that month usually is in that area.