May
May · October · April
80climate match
Japan · 1991–2020
Best time to visit
Kiryū.
May leads for comfortable weather in Kiryū: typically 24.5°C by day, 13.2°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortMay
Typical high24.5°C
Typical low13.2°C
Rain in May100 mm
May
May · June · July
46climate match
April
April · November · May
81climate match
The weakest month is August, scoring 21 against May’s 80 — 245 mm of rain falls, and days average 31.7°C, 8° above the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
229.2° / -1.1°
Feb
2610.2° / -0.5°
Mar
3813.8° / 2.6°
Apr
6119.5° / 7.9°
May
8024.5° / 13.2°
Jun
5427° / 17.6°
Jul
2530.8° / 21.8°
Aug
2131.7° / 22.7°
Sep
3827.5° / 18.8°
Oct
6522° / 12.5°
Nov
5516.5° / 6.4°
Dec
3411.7° / 1.4°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 9.2°C | -1.1°C | 22 mm | 2 | 9 h 56 | 22 | Good coverage |
| February | 10.2°C | -0.5°C | 29 mm | 4 | 10 h 48 | 26 | Good coverage |
| March | 13.8°C | 2.6°C | 56 mm | 6.5 | 11 h 51 | 38 | Good coverage |
| April | 19.5°C | 7.9°C | 83 mm | 8.1 | 13 h 04 | 61 | Good coverage |
| May | 24.5°C | 13.2°C | 100 mm | 9.9 | 14 h 05 | 80 | Good coverage |
| June | 27°C | 17.6°C | 188 mm | 14.4 | 14 h 38 | 54 | Good coverage |
| July | 30.8°C | 21.8°C | 236 mm | 17 | 14 h 25 | 25 | Good coverage |
| August | 31.7°C | 22.7°C | 245 mm | 14.2 | 13 h 33 | 21 | Good coverage |
| September | 27.5°C | 18.8°C | 266 mm | 15.2 | 12 h 22 | 38 | Good coverage |
| October | 22°C | 12.5°C | 173 mm | 8.7 | 11 h 12 | 65 | Good coverage |
| November | 16.5°C | 6.4°C | 52 mm | 5.9 | 10 h 11 | 55 | Good coverage |
| December | 11.7°C | 1.4°C | 30 mm | 3.7 | 9 h 41 | 34 | Good coverage |
What has changed
Kiryū runs +1.9°C
on the 1961–1990 baseline.
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
Jan
+1.1
Feb
+1.7
Mar
+2.3
Apr
+1.7
May
+2.1
Jun
+2.3
Jul
+3.2
Aug
+2.0
Sep
+2.8
Oct—
Nov
+0.9
Dec
+0.4
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.7°C27 Jan 1969 | -8.6°C25 Jan 1963 | 54 mm27 Jan 2002 | 102 mm2002 · driest 0 mm in 1982 | 75 |
| February | 24.4°C11 Feb 1962 | -9.0°C27 Feb 1981 | 110 mm15 Feb 2014 | 158 mm2014 · driest 0 mm in 1988 | 75 |
| March | 27.1°C30 Mar 1998 | -7.6°C1 Mar 1957 | 56 mm23 Mar 1986 | 119 mm2010 · driest 0 mm in 2026 | 75 |
| April | 32.1°C27 Apr 1983 | -3.0°C2 Apr 1965 | 58 mm18 Apr 2020 | 155 mm2008 · driest 0 mm in 2025 | 75 |
| May | 36.5°C13 May 1993 | 2.3°C3 May 1953 | 78 mm26 May 1989 | 255 mm1965 · driest 0 mm in 2025 | 75 |
| June | 39.5°C25 Jun 2022 | 7.6°C1 Jun 1978 | 146 mm28 Jun 1966 | 302 mm1966 · driest 0 mm in 2025 | 75 |
| July | 40.0°C24 Jul 2001 | 11.6°C19 Jul 2026 | 127 mm24 Jul 2019 | 376 mm2006 · driest 0 mm in 2025 | 75 |
| August | 40.6°C5 Aug 2025 | 13.6°C20 Aug 1956 | 340 mm23 Aug 1993 | 574 mm1999 · driest 0 mm in 2025 | 74 |
| September | 38.1°C3 Sep 1984 | 7.5°C28 Sep 1995 | 180 mm12 Sep 1993 | 492 mm2011 · driest 0 mm in 2025 | 74 |
| October | 31.9°C1 Oct 2012 | 3.1°C19 Oct 1957 | 212 mm12 Oct 2019 | 437 mm2019 · driest 0 mm in 2025 | 74 |
| November | 25.9°C5 Nov 1965 | -2.1°C27 Nov 1966 | 89 mm30 Nov 1990 | 191 mm1990 · driest 0 mm in 1998 | 74 |
| December | 25.2°C5 Dec 2004 | -6.6°C31 Dec 1967 | 98 mm27 Dec 2006 | 115 mm2006 · driest 0 mm in 1988 | 74 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 12 | <1 |
| February | 0 | 0 | 11 | <1 |
| March | <1 | 0 | 4 | 2 |
| April | 3 | <1 | <1 | 2 |
| May | 14 | 2 | 0 | 3 |
| June | 20 | 6 | 0 | 5 |
| July | 25 | 18 | 0 | 6 |
| August | 28 | 21 | 0 | 5 |
| September | 20 | 8 | 0 | 5 |
| October | 5 | <1 | 0 | 3 |
| November | <1 | 0 | <1 | 2 |
| December | 0 | 0 | 6 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 9% | 3% | 3% | 7.3–10.2°C |
| February | <1% | 17% | 4% | 12% | 7.7–11.5°C |
| March | 4% | 24% | 7% | 21% | 11.1–14.7°C |
| April | 29% | 30% | 10% | 32% | 17.1–20.6°C |
| May | 58% | 35% | 12% | 43% | 21.7–25.3°C |
| June | 53% | 46% | 19% | 63% | 23.9–28.2°C |
| July | 52% | 49% | 20% | 63% | 26.8–32.5°C |
| August | 60% | 40% | 18% | 52% | 29.4–33.7°C |
| September | 55% | 45% | 20% | 57% | 24.6–28.8°C |
| October | 48% | 30% | 13% | 28% | 20.0–22.8°C |
| November | 12% | 18% | 6% | 12% | 14.9–17.5°C |
| December | <1% | 11% | 2% | 4% | 9.8–12.7°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page
Nearby, measured,
and named.
- Place identity
- GeoNames 1859405
- NOAA station
- JA000047624 · MAEBASHI
- Station distance
- 23.8 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 16 usable years
- Daylight
- Calculated from latitude 36.40°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.