October
Other strong months: May and April
81/100 weather score
Japan · 1991–2020
Best time to visit
Akaiwa
For Akaiwa, October has the most comfortable weather in our climate comparison. Typical daytime highs are 23°C, nights average 13.8°C, and rainfall totals about 104 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthOctober
Typical daytime high23°C
Typical night-time low13.8°C
October rainfall104 mm
September
Other strong months: August and June
70/100 weather score
April
Other strong months: November and October
81/100 weather score
Make the answer personal
Choose the weather
that suits you.
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 Akaiwa
February has the lowest comfort score at 24 out of 100, compared with October at 81. The main reason is that days reach only 10.4°C, 14° below the 24°C the score treats as ideal.
Quick answers
Planning a trip to Akaiwa?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Akaiwa?
October is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23°C and 104 mm of rain.
What is the hottest month in Akaiwa?
August is hottest in this record, with a typical daytime high of 33.2°C and a night-time low of 24.8°C.
Which month has the least rain?
January has the lowest monthly rainfall total at 31 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
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 | 0.4°C | 31 mm | 3.9 | 14.0°C | 10 h 03 | 25 | Good coverage |
| February | 10.4°C | 0.7°C | 50 mm | 6.7 | 12.9°C | 10 h 52 | 24 | Good coverage |
| March | 14°C | 3.5°C | 84 mm | 8.4 | 13.3°C | 11 h 52 | 35 | Good coverage |
| April | 19.8°C | 8.9°C | 96 mm | 8.4 | 14.9°C | 13 h 01 | 62 | Good coverage |
| May | 25.1°C | 14.3°C | 107 mm | 8.1 | 17.4°C | 13 h 58 | 80 | Good coverage |
| June | 27.9°C | 19.2°C | 186 mm | 10.8 | 21.1°C | 14 h 29 | 51 | Good coverage |
| July | 31.8°C | 23.7°C | 186 mm | 10 | 24.7°C | 14 h 17 | 31 | Good coverage |
| August | 33.2°C | 24.8°C | 95 mm | 6.5 | 27.1°C | 13 h 28 | 40 | Good coverage |
| September | 28.7°C | 20.3°C | 155 mm | 8.9 | 26.3°C | 12 h 21 | 53 | Good coverage |
| October | 23°C | 13.8°C | 104 mm | 7.3 | 23.5°C | 11 h 15 | 81 | Good coverage |
| November | 17.2°C | 7.8°C | 62 mm | 6.3 | 19.6°C | 10 h 17 | 58 | Good coverage |
| December | 11.6°C | 2.8°C | 50 mm | 5.5 | 16.3°C | 9 h 50 | 33 | Good coverage |
What has changed
Recent daytime highs are
1.3°C warmer in Akaiwa.
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.
Jan
+1.1
Feb
+0.7
Mar
+2.3
Apr
+1.4
May
+1.5
Jun
+1.4
Jul
+1.7
Aug
+1.6
Sep
+1.0
Oct
+1.4
Nov
+1.5
Dec
+0.4
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.8°C27 Jan 1969 | -8.9°C24 Jan 1963 | 39 mm15 Jan 1998 | 93 mm2001 · driest 0 mm in 2026 | 71 |
| February | 22.3°C27 Feb 1954 | -9.1°C27 Feb 1981 | 48 mm19 Feb 1985 | 138 mm1989 · driest 0 mm in 1995 | 72 |
| March | 25.4°C26 Mar 2025 | -7.0°C5 Mar 1977 | 69 mm16 Mar 1965 | 159 mm2018 · driest 7 mm in 1973 | 72 |
| April | 29.6°C22 Apr 2004 | -3.6°C4 Apr 1957 | 72 mm8 Apr 1974 | 230 mm1967 · driest 0 mm in 2025 | 72 |
| May | 33.6°C27 May 2015 | 1.0°C3 May 1953 | 129 mm28 May 2024 | 304 mm2011 · driest 0 mm in 2025 | 71 |
| June | 37.0°C13 Jun 2013 | 8.4°C1 Jun 1978 | 147 mm25 Jun 1985 | 439 mm1985 · driest 0 mm in 2025 | 71 |
| July | 38.1°C24 Jul 2018 | 12.6°C4 Jul 1966 | 197 mm7 Jul 2018 | 416 mm1952 · driest 0 mm in 2025 | 72 |
| August | 39.4°C5 Aug 2025 | 14.8°C20 Aug 1956 | 99 mm11 Aug 1960 | 376 mm1980 · driest 0 mm in 2025 | 70 |
| September | 37.1°C3 Sep 2020 | 7.2°C29 Sep 1965 | 133 mm4 Sep 2011 | 459 mm1976 · driest 0 mm in 2025 | 70 |
| October | 33.4°C6 Oct 2018 | 1.7°C28 Oct 1958 | 120 mm19 Oct 1979 | 315 mm2017 · driest 0 mm in 2025 | 71 |
| November | 26.9°C1 Nov 1977 | -2.2°C27 Nov 1966 | 58 mm11 Nov 2009 | 153 mm2015 · driest 0 mm in 1971 | 71 |
| December | 20.6°C3 Dec 1968 | -6.5°C27 Dec 1956 | 85 mm5 Dec 2004 | 106 mm2004 · driest 0 mm in 2024 | 71 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 8 | 1 |
| February | 0 | 0 | 6 | 2 |
| March | 0 | 0 | 2 | 3 |
| April | 3 | 0 | 0 | 3 |
| May | 16 | 2 | 0 | 3 |
| June | 23 | 7 | 0 | 5 |
| July | 29 | 21 | 0 | 5 |
| August | 30 | 26 | 0 | 2 |
| September | 25 | 10 | 0 | 4 |
| October | 8 | <1 | 0 | 2 |
| November | 0 | 0 | 0 | 2 |
| December | 0 | 0 | 2 | 1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 82); on 2011–2025 it is October (88). 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% | 16% | 4% | 9% | 7.9–10.4°C |
| February | <1% | 23% | 7% | 23% | 8.2–11.7°C |
| March | 4% | 29% | 11% | 29% | 12.3–15.2°C |
| April | 36% | 32% | 14% | 37% | 17.9–21.3°C |
| May | 65% | 32% | 15% | 35% | 22.6–25.7°C |
| June | 62% | 39% | 20% | 55% | 25.8–28.6°C |
| July | 66% | 35% | 18% | 38% | 29.1–33.3°C |
| August | 77% | 23% | 10% | 24% | 30.8–34.5°C |
| September | 69% | 32% | 16% | 36% | 26.3–30.1°C |
| October | 64% | 24% | 10% | 19% | 21.3–24.0°C |
| November | 16% | 20% | 7% | 15% | 15.6–18.6°C |
| December | <1% | 15% | 4% | 9% | 9.7–13.0°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
Where these figures
come from.
- Place identity
- GeoNames 11612564
- NOAA station
- JA000047768 · OKAYAMA
- Station distance
- 18.5 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 15 usable years
- Daylight
- Calculated from latitude 34.81°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 38 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Akaiwa 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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