May
Other strong months: October and November
Japan · 1991–2020
For Akashi, May has the most comfortable weather in our climate comparison. Typical daytime highs are 23.7°C, nights average 15.7°C, and rainfall totals about 129 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Other strong months: October and November
Other strong months: August and May
Other strong months: April and December
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 Akashi
February has the lowest comfort score at 24 out of 100, compared with May at 80. The main reason is that days reach only 10.1°C, 14° below the 24°C the score treats as ideal.
Quick answers
These answers come from the same measured monthly climate record shown on this page.
May is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.7°C and 129 mm of rain.
August is hottest in this record, with a typical daytime high of 32.3°C and a night-time low of 25.7°C.
January has the lowest monthly rainfall total at 34 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 | 9.4°C | 2.8°C | 34 mm | 4.7 | 14.4°C | 10 h 04 | 28 | Good coverage |
| February | 10.1°C | 2.4°C | 62 mm | 7.2 | 13.1°C | 10 h 53 | 24 | Good coverage |
| March | 13.5°C | 5.3°C | 100 mm | 8.7 | 13.5°C | 11 h 52 | 34 | Good coverage |
| April | 18.9°C | 10.5°C | 114 mm | 9.5 | 15.2°C | 13 h 00 | 58 | Good coverage |
| May | 23.7°C | 15.7°C | 129 mm | 8.2 | 17.8°C | 13 h 57 | 80 | Good coverage |
| June | 26.8°C | 20.1°C | 226 mm | 12.2 | 21.2°C | 14 h 28 | 47 | Good coverage |
| July | 30.6°C | 24.3°C | 214 mm | 11.5 | 24.7°C | 14 h 16 | 29 | Good coverage |
| August | 32.3°C | 25.7°C | 108 mm | 6.2 | 26.8°C | 13 h 27 | 40 | Good coverage |
| September | 28.8°C | 21.6°C | 164 mm | 9.8 | 25.9°C | 12 h 21 | 48 | Good coverage |
| October | 23.2°C | 16°C | 124 mm | 8.2 | 23.1°C | 11 h 15 | 78 | Good coverage |
| November | 17.4°C | 10.1°C | 67 mm | 6.2 | 19.6°C | 10 h 18 | 62 | Good coverage |
| December | 12°C | 5°C | 53 mm | 5.9 | 16.7°C | 9 h 51 | 37 | Good coverage |
What has changed
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.1°C5 Jan 1960 | -6.0°C24 Jan 1963 | 48 mm30 Jan 1970 | 104 mm1973 · driest 0 mm in 1994 | 75 |
| February | 20.4°C25 Feb 2010 | -7.2°C27 Feb 1981 | 82 mm14 Feb 2016 | 146 mm1989 · driest 0 mm in 2026 | 75 |
| March | 23.4°C30 Mar 1998 | -5.0°C5 Mar 1977 | 128 mm23 Mar 1986 | 204 mm1986 · driest 14 mm in 1973 | 75 |
| April | 27.8°C20 Apr 1964 | -0.5°C2 Apr 1972 | 87 mm25 Apr 2018 | 241 mm1967 · driest 0 mm in 2025 | 75 |
| May | 31.7°C25 May 2019 | 6.0°C1 May 1965 | 177 mm28 May 2024 | 314 mm1995 · driest 0 mm in 2025 | 74 |
| June | 36.3°C13 Jun 2013 | 10.5°C8 Jun 1969 | 195 mm25 Jun 1961 | 584 mm1961 · driest 0 mm in 2025 | 74 |
| July | 37.7°C24 Jul 2002 | 14.5°C4 Jul 1966 | 319 mm9 Jul 1967 | 535 mm2018 · driest 0 mm in 2025 | 75 |
| August | 38.8°C8 Aug 1994 | 16.1°C20 Aug 1956 | 142 mm29 Aug 1960 | 389 mm1960 · driest 0 mm in 2025 | 73 |
| September | 35.9°C9 Sep 2024 | 11.9°C29 Sep 1981 | 219 mm14 Sep 1965 | 559 mm1965 · driest 0 mm in 2025 | 73 |
| October | 31.9°C6 Oct 2013 | 5.5°C25 Oct 1982 | 134 mm21 Oct 2004 | 338 mm2017 · driest 0 mm in 2025 | 74 |
| November | 26.3°C5 Nov 2023 | -0.2°C30 Nov 1970 | 72 mm2 Nov 2000 | 175 mm1977 · driest 0 mm in 2025 | 74 |
| December | 22.6°C4 Dec 2018 | -3.5°C31 Dec 1960 | 66 mm11 Dec 2015 | 103 mm2015 · driest 0 mm in 2020 | 74 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 2 | 1 |
| February | 0 | 0 | 3 | 2 |
| March | 0 | 0 | <1 | 3 |
| April | <1 | 0 | 0 | 3 |
| May | 10 | <1 | 0 | 4 |
| June | 22 | 2 | 0 | 5 |
| July | 28 | 18 | 0 | 4 |
| August | 30 | 25 | 0 | 2 |
| September | 25 | 11 | 0 | 3 |
| October | 8 | <1 | 0 | 3 |
| November | <1 | 0 | 0 | 2 |
| December | 0 | 0 | <1 | 1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was October (scoring 82); on 2011–2025 it is May (84). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 0% | 19% | 5% | 13% | 7.7–10.2°C |
| February | <1% | 25% | 8% | 23% | 7.7–11.6°C |
| March | 2% | 32% | 13% | 35% | 11.7–14.5°C |
| April | 27% | 35% | 17% | 42% | 17.3–20.4°C |
| May | 61% | 34% | 16% | 36% | 22.0–24.5°C |
| June | 61% | 40% | 20% | 56% | 25.2–27.4°C |
| July | 65% | 36% | 17% | 39% | 28.5–32.2°C |
| August | 77% | 24% | 10% | 26% | 30.5–33.4°C |
| September | 66% | 35% | 15% | 40% | 26.1–30.3°C |
| October | 60% | 28% | 12% | 25% | 21.3–24.1°C |
| November | 15% | 22% | 8% | 15% | 15.6–18.5°C |
| December | <1% | 18% | 5% | 10% | 9.8–13.0°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 Akashi 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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