June
Other strong months: May and September
Japan · 1991–2020
For Katsuta, June has the most comfortable weather in our climate comparison. Typical daytime highs are 24.7°C, nights average 16.6°C, and rainfall totals about 156 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Other strong months: May and September
Other strong months: July and September
Other strong months: April and May
Make the answer personal
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
3 months fit your choices for Katsuta
February has the lowest comfort score at 17 out of 100, compared with June at 69. The main reason is that days reach only 9.9°C, 14° below the 24°C the score treats as ideal, and nights drop to -2°C.
Quick answers
These answers come from the same measured monthly climate record shown on this page.
June is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 24.7°C and 156 mm of rain.
August is hottest in this record, with a typical daytime high of 30°C and a night-time low of 22°C.
January has the lowest monthly rainfall total at 41 mm.
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 9.2°C | -2.7°C | 41 mm | 3.8 | 14.6°C | 9 h 56 | 18 | Good coverage |
| February | 9.9°C | -2°C | 58 mm | 6.4 | 13.0°C | 10 h 48 | 17 | Good coverage |
| March | 13.1°C | 1.1°C | 100 mm | 8.9 | 13.1°C | 11 h 51 | 24 | Good coverage |
| April | 18°C | 6.2°C | 131 mm | 10.9 | 14.5°C | 13 h 04 | 44 | Good coverage |
| May | 22.2°C | 11.9°C | 146 mm | 10.9 | 16.9°C | 14 h 05 | 66 | Good coverage |
| June | 24.7°C | 16.6°C | 156 mm | 12.4 | 19.4°C | 14 h 37 | 69 | Good coverage |
| July | 28.8°C | 20.6°C | 176 mm | 13.7 | 21.7°C | 14 h 25 | 45 | Good coverage |
| August | 30°C | 22°C | 140 mm | 9 | 24.1°C | 13 h 32 | 48 | Good coverage |
| September | 26.4°C | 18.2°C | 189 mm | 12.3 | 23.3°C | 12 h 22 | 56 | Good coverage |
| October | 21.2°C | 11.9°C | 211 mm | 10 | 20.8°C | 11 h 12 | 54 | Good coverage |
| November | 16.3°C | 5.3°C | 88 mm | 7.7 | 18.8°C | 10 h 11 | 46 | Good coverage |
| December | 11.5°C | -0.1°C | 52 mm | 5.6 | 16.4°C | 9 h 41 | 27 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.8°C27 Jan 1969 | -11.0°C17 Jan 1970 | 82 mm27 Jan 2002 | 133 mm2002 · driest 0 mm in 2026 | 75 |
| February | 24.3°C14 Feb 2009 | -12.7°C5 Feb 1952 | 86 mm15 Feb 2014 | 194 mm1985 · driest 0 mm in 2026 | 75 |
| March | 25.2°C29 Mar 2007 | -8.1°C6 Mar 1977 | 84 mm30 Mar 1969 | 189 mm2018 · driest 0 mm in 2026 | 75 |
| April | 29.3°C28 Apr 2015 | -3.5°C6 Apr 1965 | 116 mm29 Apr 1971 | 231 mm2010 · driest 0 mm in 2025 | 75 |
| May | 33.4°C26 May 2019 | -0.1°C3 May 1953 | 124 mm25 May 1997 | 346 mm2012 · driest 0 mm in 2025 | 75 |
| June | 36.2°C25 Jun 2022 | 7.6°C3 Jun 1958 | 226 mm28 Jun 1966 | 490 mm1961 · driest 0 mm in 2025 | 75 |
| July | 38.4°C5 Jul 1997 | 7.8°C20 Jul 2026 | 164 mm8 Jul 2000 | 335 mm2006 · driest 0 mm in 2025 | 75 |
| August | 38.4°C15 Aug 1996 | 13.4°C10 Aug 1980 | 244 mm4 Aug 1986 | 398 mm2016 · driest 0 mm in 2025 | 73 |
| September | 36.8°C2 Sep 2000 | 8.4°C28 Sep 1962 | 204 mm19 Sep 1991 | 429 mm1991 · driest 0 mm in 2025 | 73 |
| October | 33.1°C1 Oct 1979 | 0.7°C31 Oct 1984 | 177 mm8 Oct 1952 | 489 mm2004 · driest 0 mm in 2025 | 74 |
| November | 26.2°C1 Nov 1977 | -4.2°C30 Nov 1976 | 169 mm20 Nov 1970 | 217 mm1970 · driest 0 mm in 1998 | 74 |
| December | 25.0°C5 Dec 2004 | -7.8°C25 Dec 1973 | 83 mm5 Dec 1968 | 193 mm1968 · driest 0 mm in 2025 | 74 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 15 | 1 |
| February | 0 | 0 | 13 | 1 |
| March | <1 | 0 | 6 | 3 |
| April | 1 | 0 | <1 | 4 |
| May | 7 | <1 | 0 | 4 |
| June | 13 | 2 | 0 | 4 |
| July | 23 | 12 | 0 | 3 |
| August | 26 | 16 | 0 | 3 |
| September | 18 | 5 | 0 | 5 |
| October | 3 | <1 | 0 | 4 |
| November | 0 | 0 | 1 | 3 |
| December | 0 | 0 | 10 | 1 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | <1% | 16% | 6% | 9% | 7.6–10.4°C |
| February | <1% | 23% | 7% | 24% | 8.0–11.5°C |
| March | 3% | 31% | 12% | 34% | 10.8–14.1°C |
| April | 20% | 37% | 15% | 44% | 16.2–19.0°C |
| May | 46% | 39% | 17% | 48% | 20.5–23.3°C |
| June | 54% | 42% | 17% | 57% | 22.2–26.2°C |
| July | 62% | 38% | 13% | 44% | 25.5–30.7°C |
| August | 71% | 30% | 12% | 35% | 27.8–31.9°C |
| September | 59% | 41% | 19% | 54% | 24.2–27.7°C |
| October | 43% | 34% | 17% | 35% | 19.5–22.0°C |
| November | 10% | 24% | 9% | 23% | 14.9–17.2°C |
| December | <1% | 17% | 6% | 9% | 10.0–12.7°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
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The weather comparison for Katsuta is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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